java des加密
Java加密技术
如基本的单向加密算法：
BASE64 严格地说，属于编码格式，而非加密算法
MD5(Message Digest algorithm 5，信息摘要算法)
SHA(Secure Hash Algorithm，安全散列算法)
HMAC(Hash Message Authentication Code，散列消息鉴别码)
复杂的对称加密（DES、PBE）、非对称加密算法：
DES(Data Encryption Standard，数据加密算法)
PBE(Password-based encryption，基于密码验证)
RSA(算法的名字以发明者的名字命名：Ron Rivest, AdiShamir 和Leonard Adleman)
DH(Diffie-Hellman算法，密钥一致协议)
DSA(Digital Signature Algorithm，数字签名)
ECC(Elliptic Curves Cryptography，椭圆曲线密码编码学)
本篇内容简要介绍BASE64、MD5、SHA、HMAC几种方法。
MD5、SHA、HMAC这三种加密算法，可谓是非可逆加密，就是不可解密的加密方法。我们通常只把他们作为加密的基础。单纯的以上三种的加密并不可靠。
BASE64
按照RFC2045的定义，Base64被定义为：Base64内容传送编码被设计用来把任意序列的8位字节描述为一种不易被人直接识别的形式。（The Base64 Content-Transfer-Encoding is designed to represent arbitrary sequences of octets in a form that need not be humanly readable.）
常见于邮件、http加密，截取http信息，你就会发现登录操作的用户名、密码字段通过BASE64加密的。
通过java代码实现如下：
Java代码
/**
* BASE64解密
*
* @param key
* @return
* @throws Exception
*/
public static byte[] decryptBASE64(String key) throws Exception {
return (new BASE64Decoder()).decodeBuffer(key);
}
/**
* BASE64加密
*
* @param key
* @return
* @throws Exception
*/
public static String encryptBASE64(byte[] key) throws Exception {
return (new BASE64Encoder()).encodeBuffer(key);
}
主要就是BASE64Encoder、BASE64Decoder两个类，我们只需要知道使用对应的方法即可。另，BASE加密后产生的字节位数是8的倍数，如果不够位数以=符号填充。
MD5
MD5 -- message-digest algorithm 5 （信息-摘要算法）缩写，广泛用于加密和解密技术，常用于文件校验。校验？不管文件多大，经过MD5后都能生成唯一的MD5值。好比现在的ISO校验，都是MD5校验。怎么用？当然是把ISO经过MD5后产生MD5的值。一般下载linux-ISO的朋友都见过下载链接旁边放着MD5的串。就是用来验证文件是否一致的。
通过java代码实现如下：
Java代码
/**
* MD5加密
*
* @param data
* @return
* @throws Exception
*/
public static byte[] encryptMD5(byte[] data) throws Exception {
MessageDigest md5 = MessageDigest.getInstance(KEY_MD5);
md5.update(data);
return md5.digest();
}
通常我们不直接使用上述MD5加密。通常将MD5产生的字节数组交给BASE64再加密一把，得到相应的字符串。
SHA
SHA(Secure Hash Algorithm，安全散列算法），数字签名等密码学应用中重要的工具，被广泛地应用于电子商务等信息安全领域。虽然，SHA与MD5通过碰撞法都被破解了， 但是SHA仍然是公认的安全加密算法，较之MD5更为安全。
通过java代码实现如下：
Java代码
/**
* SHA加密
*
* @param data
* @return
* @throws Exception
*/
public static byte[] encryptSHA(byte[] data) throws Exception {
MessageDigest sha = MessageDigest.getInstance(KEY_SHA);
sha.update(data);
return sha.digest();
}
}
HMAC
HMAC(Hash Message Authentication Code，散列消息鉴别码，基于密钥的Hash算法的认证协议。消息鉴别码实现鉴别的原理是，用公开函数和密钥产生一个固定长度的值作为认证标识，用这个标识鉴别消息的完整性。使用一个密钥生成一个固定大小的小数据块，即MAC，并将其加入到消息中，然后传输。接收方利用与发送方共享的密钥进行鉴别认证等。
通过java代码实现如下：
Java代码
/**
* 初始化HMAC密钥
*
* @return
* @throws Exception
*/
public static String initMacKey() throws Exception {
KeyGenerator keyGenerator = KeyGenerator.getInstance(KEY_MAC);
SecretKey secretKey = keyGenerator.generateKey();
return encryptBASE64(secretKey.getEncoded());
}
/**
* HMAC加密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] encryptHMAC(byte[] data, String key) throws Exception {
SecretKey secretKey = new SecretKeySpec(decryptBASE64(key), KEY_MAC);
Mac mac = Mac.getInstance(secretKey.getAlgorithm());
mac.init(secretKey);
return mac.doFinal(data);
}
给出一个完整类，如下：
Java代码
import java.security.MessageDigest;
import javax.crypto.KeyGenerator;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
/**
* 基础加密组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class Coder {
public static final String KEY_SHA = "SHA";
public static final String KEY_MD5 = "MD5";
/**
* MAC算法可选以下多种算法
*
*
* HmacMD5
* HmacSHA1
* HmacSHA256
* HmacSHA384
* HmacSHA512
*
*/
public static final String KEY_MAC = "HmacMD5";
/**
* BASE64解密
*
* @param key
* @return
* @throws Exception
*/
public static byte[] decryptBASE64(String key) throws Exception {
return (new BASE64Decoder()).decodeBuffer(key);
}
/**
* BASE64加密
*
* @param key
* @return
* @throws Exception
*/
public static String encryptBASE64(byte[] key) throws Exception {
return (new BASE64Encoder()).encodeBuffer(key);
}
/**
* MD5加密
*
* @param data
* @return
* @throws Exception
*/
public static byte[] encryptMD5(byte[] data) throws Exception {
MessageDigest md5 = MessageDigest.getInstance(KEY_MD5);
md5.update(data);
return md5.digest();
}
/**
* SHA加密
*
* @param data
* @return
* @throws Exception
*/
public static byte[] encryptSHA(byte[] data) throws Exception {
MessageDigest sha = MessageDigest.getInstance(KEY_SHA);
sha.update(data);
return sha.digest();
}
/**
* 初始化HMAC密钥
*
* @return
* @throws Exception
*/
public static String initMacKey() throws Exception {
KeyGenerator keyGenerator = KeyGenerator.getInstance(KEY_MAC);
SecretKey secretKey = keyGenerator.generateKey();
return encryptBASE64(secretKey.getEncoded());
}
/**
* HMAC加密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] encryptHMAC(byte[] data, String key) throws Exception {
SecretKey secretKey = new SecretKeySpec(decryptBASE64(key), KEY_MAC);
Mac mac = Mac.getInstance(secretKey.getAlgorithm());
mac.init(secretKey);
return mac.doFinal(data);
}
}
再给出一个测试类：
Java代码
import static org.junit.Assert.*;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class CoderTest {
@Test
public void test() throws Exception {
String inputStr = "简单加密";
System.err.println("原文:\n" + inputStr);
byte[] inputData = inputStr.getBytes();
String code = Coder.encryptBASE64(inputData);
System.err.println("BASE64加密后:\n" + code);
byte[] output = Coder.decryptBASE64(code);
String outputStr = new String(output);
System.err.println("BASE64解密后:\n" + outputStr);
// 验证BASE64加密解密一致性
assertEquals(inputStr, outputStr);
// 验证MD5对于同一内容加密是否一致
assertArrayEquals(Coder.encryptMD5(inputData), Coder
.encryptMD5(inputData));
// 验证SHA对于同一内容加密是否一致
assertArrayEquals(Coder.encryptSHA(inputData), Coder
.encryptSHA(inputData));
String key = Coder.initMacKey();
System.err.println("Mac密钥:\n" + key);
// 验证HMAC对于同一内容，同一密钥加密是否一致
assertArrayEquals(Coder.encryptHMAC(inputData, key), Coder.encryptHMAC(
inputData, key));
BigInteger md5 = new BigInteger(Coder.encryptMD5(inputData));
System.err.println("MD5:\n" + md5.toString(16));
BigInteger sha = new BigInteger(Coder.encryptSHA(inputData));
System.err.println("SHA:\n" + sha.toString(32));
BigInteger mac = new BigInteger(Coder.encryptHMAC(inputData, inputStr));
System.err.println("HMAC:\n" + mac.toString(16));
}
}
控制台输出：
Console代码
原文:
简单加密
BASE64加密后:
566A5Y2V5Yqg5a+G
BASE64解密后:
简单加密
Mac密钥:
uGxdHC+6ylRDaik++leFtGwiMbuYUJ6mqHWyhSgF4trVkVBBSQvY/a22xU8XT1RUemdCWW155Bke
pBIpkd7QHg==
MD5:
-550b4d90349ad4629462113e7934de56
SHA:
91k9vo7p400cjkgfhjh0ia9qthsjagfn
HMAC:
2287d192387e95694bdbba2fa941009a
注意
编译时，可能会看到如下提示：
引用
警告：sun.misc.BASE64Decoder 是 Sun 的专用 API，可能会在未来版本中删除
import sun.misc.BASE64Decoder;
^
警告：sun.misc.BASE64Encoder 是 Sun 的专用 API，可能会在未来版本中删除
import sun.misc.BASE64Encoder;
^
BASE64Encoder和BASE64Decoder是非官方JDK实现类。虽然可以在JDK里能找到并使用，但是在API里查不到。JRE 中 sun 和 com.sun 开头包的类都是未被文档化的，他们属于 java, javax 类库的基础，其中的实现大多数与底层平台有关，一般来说是不推荐使用的。
BASE64的加密解密是双向的，可以求反解。
MD5、SHA以及HMAC是单向加密，任何数据加密后只会产生唯一的一个加密串，通常用来校验数据在传输过程中是否被修改。其中HMAC算法有一个密钥，增强了数据传输过程中的安全性，强化了算法外的不可控因素。
单向加密的用途主要是为了校验数据在传输过程中是否被修改。
接下来我们介绍对称加密算法，最常用的莫过于DES数据加密算法。
DES
DES-Data Encryption Standard,即数据加密算法。是IBM公司于1975年研究成功并公开发表的。DES算法的入口参数有三个:Key、Data、Mode。其中Key为8个字节共64位,是DES算法的工作密钥;Data也为8个字节64位,是要被加密或被解密的数据;Mode为DES的工作方式,有两种:加密或解密。
DES算法把64位的明文输入块变为64位的密文输出块,它所使用的密钥也是64位。
通过java代码实现如下：Coder类见 Java加密技术（一）
Java代码
import java.security.Key;
import java.security.SecureRandom;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
/**
* DES安全编码组件
*
*
* 支持 DES、DESede(TripleDES,就是3DES)、AES、Blowfish、RC2、RC4(ARCFOUR)
* DES key size must be equal to 56
* DESede(TripleDES) key size must be equal to 112 or 168
* AES key size must be equal to 128, 192 or 256,but 192 and 256 bits may not be available
* Blowfish key size must be multiple of 8, and can only range from 32 to 448 (inclusive)
* RC2 key size must be between 40 and 1024 bits
* RC4(ARCFOUR) key size must be between 40 and 1024 bits
* 具体内容 需要关注 JDK Document http://.../docs/technotes/guides/security/SunProviders.html
*
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class DESCoder extends Coder {
/**
* ALGORITHM 算法
* 可替换为以下任意一种算法，同时key值的size相应改变。
*
*
* DES key size must be equal to 56
* DESede(TripleDES) key size must be equal to 112 or 168
* AES key size must be equal to 128, 192 or 256,but 192 and 256 bits may not be available
* Blowfish key size must be multiple of 8, and can only range from 32 to 448 (inclusive)
* RC2 key size must be between 40 and 1024 bits
* RC4(ARCFOUR) key size must be between 40 and 1024 bits
*
*
* 在Key toKey(byte[] key)方法中使用下述代码
*
SecretKey secretKey = new SecretKeySpec(key, ALGORITHM); 替换
*
* DESKeySpec dks = new DESKeySpec(key);
* SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
* SecretKey secretKey = keyFactory.generateSecret(dks);
*
*/
public static final String ALGORITHM = "DES";
/**
* 转换密钥
*
* @param key
* @return
* @throws Exception
*/
private static Key toKey(byte[] key) throws Exception {
DESKeySpec dks = new DESKeySpec(key);
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
SecretKey secretKey = keyFactory.generateSecret(dks);
// 当使用其他对称加密算法时，如AES、Blowfish等算法时，用下述代码替换上述三行代码
// SecretKey secretKey = new SecretKeySpec(key, ALGORITHM);
return secretKey;
}
/**
* 解密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] decrypt(byte[] data, String key) throws Exception {
Key k = toKey(decryptBASE64(key));
Cipher cipher = Cipher.getInstance(ALGORITHM);
cipher.init(Cipher.DECRYPT_MODE, k);
return cipher.doFinal(data);
}
/**
* 加密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] encrypt(byte[] data, String key) throws Exception {
Key k = toKey(decryptBASE64(key));
Cipher cipher = Cipher.getInstance(ALGORITHM);
cipher.init(Cipher.ENCRYPT_MODE, k);
return cipher.doFinal(data);
}
/**
* 生成密钥
*
* @return
* @throws Exception
*/
public static String initKey() throws Exception {
return initKey(null);
}
/**
* 生成密钥
*
* @param seed
* @return
* @throws Exception
*/
public static String initKey(String seed) throws Exception {
SecureRandom secureRandom = null;
if (seed != null) {
secureRandom = new SecureRandom(decryptBASE64(seed));
} else {
secureRandom = new SecureRandom();
}
KeyGenerator kg = KeyGenerator.getInstance(ALGORITHM);
kg.init(secureRandom);
SecretKey secretKey = kg.generateKey();
return encryptBASE64(secretKey.getEncoded());
}
}
延续上一个类的实现，我们通过MD5以及SHA对字符串加密生成密钥，这是比较常见的密钥生成方式。
再给出一个测试类：
Java代码
import static org.junit.Assert.*;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class DESCoderTest {
@Test
public void test() throws Exception {
String inputStr = "DES";
String key = DESCoder.initKey();
System.err.println("原文:\t" + inputStr);
System.err.println("密钥:\t" + key);
byte[] inputData = inputStr.getBytes();
inputData = DESCoder.encrypt(inputData, key);
System.err.println("加密后:\t" + DESCoder.encryptBASE64(inputData));
byte[] outputData = DESCoder.decrypt(inputData, key);
String outputStr = new String(outputData);
System.err.println("解密后:\t" + outputStr);
assertEquals(inputStr, outputStr);
}
}
得到的输出内容如下：
Console代码
原文: DES
密钥: f3wEtRrV6q0=
加密后: C6qe9oNIzRY=
解密后: DES
由控制台得到的输出，我们能够比对加密、解密后结果一致。这是一种简单的加密解密方式，只有一个密钥。
其实DES有很多同胞兄弟，如DESede(TripleDES)、AES、Blowfish、RC2、RC4(ARCFOUR)。这里就不过多阐述了，大同小异，只要换掉ALGORITHM换成对应的值，同时做一个代码替换SecretKey secretKey = new SecretKeySpec(key, ALGORITHM);就可以了，此外就是密钥长度不同了。
Java代码
/**
* DES key size must be equal to 56
* DESede(TripleDES) key size must be equal to 112 or 168
* AES key size must be equal to 128, 192 or 256,but 192 and 256 bits may not be available
* Blowfish key size must be multiple of 8, and can only range from 32 to 448 (inclusive)
* RC2 key size must be between 40 and 1024 bits
* RC4(ARCFOUR) key size must be between 40 and 1024 bits
**/
除了DES，我们还知道有DESede(TripleDES,就是3DES)、AES、Blowfish、RC2、RC4(ARCFOUR)等多种对称加密方式，其实现方式大同小异，这里介绍对称加密的另一个算法——PBE
PBE
PBE——Password-based encryption（基于密码加密）。其特点在于口令由用户自己掌管，不借助任何物理媒体；采用随机数（这里我们叫做盐）杂凑多重加密等方法保证数据的安全性。是一种简便的加密方式。
通过java代码实现如下：Coder类见 Java加密技术（一）
Java代码
import java.security.Key;
import java.util.Random;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
/**
* PBE安全编码组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class PBECoder extends Coder {
/**
* 支持以下任意一种算法
*
*
* PBEWithMD5AndDES
* PBEWithMD5AndTripleDES
* PBEWithSHA1AndDESede
* PBEWithSHA1AndRC2_40
*
*/
public static final String ALGORITHM = "PBEWITHMD5andDES";
/**
* 盐初始化
*
* @return
* @throws Exception
*/
public static byte[] initSalt() throws Exception {
byte[] salt = new byte[8];
Random random = new Random();
random.nextBytes(salt);
return salt;
}
/**
* 转换密钥
*
* @param password
* @return
* @throws Exception
*/
private static Key toKey(String password) throws Exception {
PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray());
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
SecretKey secretKey = keyFactory.generateSecret(keySpec);
return secretKey;
}
/**
* 加密
*
* @param data
* 数据
* @param password
* 密码
* @param salt
* 盐
* @return
* @throws Exception
*/
public static byte[] encrypt(byte[] data, String password, byte[] salt)
throws Exception {
Key key = toKey(password);
PBEParameterSpec paramSpec = new PBEParameterSpec(salt, 100);
Cipher cipher = Cipher.getInstance(ALGORITHM);
cipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
return cipher.doFinal(data);
}
/**
* 解密
*
* @param data
* 数据
* @param password
* 密码
* @param salt
* 盐
* @return
* @throws Exception
*/
public static byte[] decrypt(byte[] data, String password, byte[] salt)
throws Exception {
Key key = toKey(password);
PBEParameterSpec paramSpec = new PBEParameterSpec(salt, 100);
Cipher cipher = Cipher.getInstance(ALGORITHM);
cipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
return cipher.doFinal(data);
}
}
再给出一个测试类：
Java代码
import static org.junit.Assert.*;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class PBECoderTest {
@Test
public void test() throws Exception {
String inputStr = "abc";
System.err.println("原文: " + inputStr);
byte[] input = inputStr.getBytes();
String pwd = "efg";
System.err.println("密码: " + pwd);
byte[] salt = PBECoder.initSalt();
byte[] data = PBECoder.encrypt(input, pwd, salt);
System.err.println("加密后: " + PBECoder.encryptBASE64(data));
byte[] output = PBECoder.decrypt(data, pwd, salt);
String outputStr = new String(output);
System.err.println("解密后: " + outputStr);
assertEquals(inputStr, outputStr);
}
}
控制台输出：
Console代码
原文: abc
密码: efg
加密后: iCZ0uRtaAhE=
解密后: abc
后续我们会介绍非对称加密算法，如RSA、DSA、DH、ECC等。
接下来我们介绍典型的非对称加密算法——RSA
RSA
这种算法1978年就出现了，它是第一个既能用于数据加密也能用于数字签名的算法。它易于理解和操作，也很流行。算法的名字以发明者的名字命名：Ron Rivest, AdiShamir 和Leonard Adleman。
这种加密算法的特点主要是密钥的变化，上文我们看到DES只有一个密钥。相当于只有一把钥匙，如果这把钥匙丢了，数据也就不安全了。RSA同时有两把钥匙，公钥与私钥。同时支持数字签名。数字签名的意义在于，对传输过来的数据进行校验。确保数据在传输工程中不被修改。
流程分析：
甲方构建密钥对儿，将公钥公布给乙方，将私钥保留。
甲方使用私钥加密数据，然后用私钥对加密后的数据签名，发送给乙方签名以及加密后的数据；乙方使用公钥、签名来验证待解密数据是否有效，如果有效使用公钥对数据解密。
乙方使用公钥加密数据，向甲方发送经过加密后的数据；甲方获得加密数据，通过私钥解密。
按如上步骤给出序列图，如下：
通过java代码实现如下：Coder类见 Java加密技术（一）
Java代码
import java.security.Key;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.HashMap;
import java.util.Map;
import javax.crypto.Cipher;
/**
* RSA安全编码组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class RSACoder extends Coder {
public static final String KEY_ALGORITHM = "RSA";
public static final String SIGNATURE_ALGORITHM = "MD5withRSA";
private static final String PUBLIC_KEY = "RSAPublicKey";
private static final String PRIVATE_KEY = "RSAPrivateKey";
/**
* 用私钥对信息生成数字签名
*
* @param data
* 加密数据
* @param privateKey
* 私钥
*
* @return
* @throws Exception
*/
public static String sign(byte[] data, String privateKey) throws Exception {
// 解密由base64编码的私钥
byte[] keyBytes = decryptBASE64(privateKey);
// 构造PKCS8EncodedKeySpec对象
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
// KEY_ALGORITHM 指定的加密算法
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
// 取私钥匙对象
PrivateKey priKey = keyFactory.generatePrivate(pkcs8KeySpec);
// 用私钥对信息生成数字签名
Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
signature.initSign(priKey);
signature.update(data);
return encryptBASE64(signature.sign());
}
/**
* 校验数字签名
*
* @param data
* 加密数据
* @param publicKey
* 公钥
* @param sign
* 数字签名
*
* @return 校验成功返回true 失败返回false
* @throws Exception
*
*/
public static boolean verify(byte[] data, String publicKey, String sign)
throws Exception {
// 解密由base64编码的公钥
byte[] keyBytes = decryptBASE64(publicKey);
// 构造X509EncodedKeySpec对象
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
// KEY_ALGORITHM 指定的加密算法
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
// 取公钥匙对象
PublicKey pubKey = keyFactory.generatePublic(keySpec);
Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
signature.initVerify(pubKey);
signature.update(data);
// 验证签名是否正常
return signature.verify(decryptBASE64(sign));
}
/**
* 解密
* 用私钥解密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] decryptByPrivateKey(byte[] data, String key)
throws Exception {
// 对密钥解密
byte[] keyBytes = decryptBASE64(key);
// 取得私钥
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key privateKey = keyFactory.generatePrivate(pkcs8KeySpec);
// 对数据解密
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 解密
* 用公钥解密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] decryptByPublicKey(byte[] data, String key)
throws Exception {
// 对密钥解密
byte[] keyBytes = decryptBASE64(key);
// 取得公钥
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key publicKey = keyFactory.generatePublic(x509KeySpec);
// 对数据解密
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 加密
* 用公钥加密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] encryptByPublicKey(byte[] data, String key)
throws Exception {
// 对公钥解密
byte[] keyBytes = decryptBASE64(key);
// 取得公钥
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key publicKey = keyFactory.generatePublic(x509KeySpec);
// 对数据加密
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 加密
* 用私钥加密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] encryptByPrivateKey(byte[] data, String key)
throws Exception {
// 对密钥解密
byte[] keyBytes = decryptBASE64(key);
// 取得私钥
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key privateKey = keyFactory.generatePrivate(pkcs8KeySpec);
// 对数据加密
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 取得私钥
*
* @param keyMap
* @return
* @throws Exception
*/
public static String getPrivateKey(Map
throws Exception {
Key key = (Key) keyMap.get(PRIVATE_KEY);
return encryptBASE64(key.getEncoded());
}
/**
* 取得公钥
*
* @param keyMap
* @return
* @throws Exception
*/
public static String getPublicKey(Map
throws Exception {
Key key = (Key) keyMap.get(PUBLIC_KEY);
return encryptBASE64(key.getEncoded());
}
/**
* 初始化密钥
*
* @return
* @throws Exception
*/
public static Map
KeyPairGenerator keyPairGen = KeyPairGenerator
.getInstance(KEY_ALGORITHM);
keyPairGen.initialize(1024);
KeyPair keyPair = keyPairGen.generateKeyPair();
// 公钥
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
// 私钥
RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
Map
keyMap.put(PUBLIC_KEY, publicKey);
keyMap.put(PRIVATE_KEY, privateKey);
return keyMap;
}
}
再给出一个测试类：
Java代码
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
import java.util.Map;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class RSACoderTest {
private String publicKey;
private String privateKey;
@Before
public void setUp() throws Exception {
Map
publicKey = RSACoder.getPublicKey(keyMap);
privateKey = RSACoder.getPrivateKey(keyMap);
System.err.println("公钥: \n\r" + publicKey);
System.err.println("私钥： \n\r" + privateKey);
}
@Test
public void test() throws Exception {
System.err.println("公钥加密——私钥解密");
String inputStr = "abc";
byte[] data = inputStr.getBytes();
byte[] encodedData = RSACoder.encryptByPublicKey(data, publicKey);
byte[] decodedData = RSACoder.decryptByPrivateKey(encodedData,
privateKey);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
}
@Test
public void testSign() throws Exception {
System.err.println("私钥加密——公钥解密");
String inputStr = "sign";
byte[] data = inputStr.getBytes();
byte[] encodedData = RSACoder.encryptByPrivateKey(data, privateKey);
byte[] decodedData = RSACoder
.decryptByPublicKey(encodedData, publicKey);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
System.err.println("私钥签名——公钥验证签名");
// 产生签名
String sign = RSACoder.sign(encodedData, privateKey);
System.err.println("签名:\r" + sign);
// 验证签名
boolean status = RSACoder.verify(encodedData, publicKey, sign);
System.err.println("状态:\r" + status);
assertTrue(status);
}
}
控制台输出：
Console代码
公钥:
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCYU/+I0+z1aBl5X6DUUOHQ7FZpmBSDbKTtx89J
EcB64jFCkunELT8qiKly7fzEqD03g8ALlu5XvX+bBqHFy7YPJJP0ekE2X3wjUnh2NxlqpH3/B/xm
1ZdSlCwDIkbijhBVDjA/bu5BObhZqQmDwIxlQInL9oVz+o6FbAZCyHBd7wIDAQAB
私钥：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公钥加密——私钥解密
加密前: abc
解密后: abc
公钥:
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDdOj40yEB48XqWxmPILmJAc7UecIN7F32etSHF
9rwbuEh3+iTPOGSxhoSQpOED0vOb0ZIMkBXZSgsxLaBSin2RZ09YKWRjtpCA0kDkiD11gj4tzTiM
l9qq1kwSK7ZkGAgodEn3yIILVmQDuEImHOXFtulvJ71ka07u3LuwUNdB/wIDAQAB
私钥：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私钥加密——公钥解密
加密前: sign
解密后: sign
私钥签名——公钥验证签名
签名:
ud1RsIwmSC1pN22I4IXteg1VD2FbiehKUfNxgVSHzvQNIK+d20FCkHCqh9djP3h94iWnIUY0ifU+
mbJkhAl/i5krExOE0hknOnPMcEP+lZV1RbJI2zG2YooSp2XDleqrQk5e/QF2Mx0Zxt8Xsg7ucVpn
i3wwbYWs9wSzIf0UjlM=
状态:
true
简要总结一下，使用公钥加密、私钥解密，完成了乙方到甲方的一次数据传递，通过私钥加密、公钥解密，同时通过私钥签名、公钥验证签名，完成了一次甲方到乙方的数据传递与验证，两次数据传递完成一整套的数据交互！
类似数字签名，数字信封是这样描述的：
数字信封
数字信封用加密技术来保证只有特定的收信人才能阅读信的内容。
流程：
信息发送方采用对称密钥来加密信息，然后再用接收方的公钥来加密此对称密钥（这部分称为数字信封），再将它和信息一起发送给接收方；接收方先用相应的私钥打开数字信封，得到对称密钥，然后使用对称密钥再解开信息。
接下来我们介绍DSA数字签名，非对称加密的另一种实现。
DSA
DSA-Digital Signature Algorithm 是Schnorr和ElGamal签名算法的变种，被美国NIST作为DSS(DigitalSignature Standard)。简单的说，这是一种更高级的验证方式，用作数字签名。不单单只有公钥、私钥，还有数字签名。私钥加密生成数字签名，公钥验证数据及签名。如果数据和签名不匹配则认为验证失败！数字签名的作用就是校验数据在传输过程中不被修改。数字签名，是单向加密的升级！
通过java代码实现如下：Coder类见 Java加密技术（一）
Java代码
import java.security.Key;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Signature;
import java.security.interfaces.DSAPrivateKey;
import java.security.interfaces.DSAPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.HashMap;
import java.util.Map;
/**
* DSA安全编码组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class DSACoder extends Coder {
public static final String ALGORITHM = "DSA";
/**
* 默认密钥字节数
*
*
* DSA
* Default Keysize 1024
* Keysize must be a multiple of 64, ranging from 512 to 1024 (inclusive).
*
*/
private static final int KEY_SIZE = 1024;
/**
* 默认种子
*/
private static final String DEFAULT_SEED = "0f22507a10bbddd07d8a3082122966e3";
private static final String PUBLIC_KEY = "DSAPublicKey";
private static final String PRIVATE_KEY = "DSAPrivateKey";
/**
* 用私钥对信息生成数字签名
*
* @param data
* 加密数据
* @param privateKey
* 私钥
*
* @return
* @throws Exception
*/
public static String sign(byte[] data, String privateKey) throws Exception {
// 解密由base64编码的私钥
byte[] keyBytes = decryptBASE64(privateKey);
// 构造PKCS8EncodedKeySpec对象
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
// KEY_ALGORITHM 指定的加密算法
KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM);
// 取私钥匙对象
PrivateKey priKey = keyFactory.generatePrivate(pkcs8KeySpec);
// 用私钥对信息生成数字签名
Signature signature = Signature.getInstance(keyFactory.getAlgorithm());
signature.initSign(priKey);
signature.update(data);
return encryptBASE64(signature.sign());
}
/**
* 校验数字签名
*
* @param data
* 加密数据
* @param publicKey
* 公钥
* @param sign
* 数字签名
*
* @return 校验成功返回true 失败返回false
* @throws Exception
*
*/
public static boolean verify(byte[] data, String publicKey, String sign)
throws Exception {
// 解密由base64编码的公钥
byte[] keyBytes = decryptBASE64(publicKey);
// 构造X509EncodedKeySpec对象
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
// ALGORITHM 指定的加密算法
KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM);
// 取公钥匙对象
PublicKey pubKey = keyFactory.generatePublic(keySpec);
Signature signature = Signature.getInstance(keyFactory.getAlgorithm());
signature.initVerify(pubKey);
signature.update(data);
// 验证签名是否正常
return signature.verify(decryptBASE64(sign));
}
/**
* 生成密钥
*
* @param seed
* 种子
* @return 密钥对象
* @throws Exception
*/
public static Map
KeyPairGenerator keygen = KeyPairGenerator.getInstance(ALGORITHM);
// 初始化随机产生器
SecureRandom secureRandom = new SecureRandom();
secureRandom.setSeed(seed.getBytes());
keygen.initialize(KEY_SIZE, secureRandom);
KeyPair keys = keygen.genKeyPair();
DSAPublicKey publicKey = (DSAPublicKey) keys.getPublic();
DSAPrivateKey privateKey = (DSAPrivateKey) keys.getPrivate();
Map
map.put(PUBLIC_KEY, publicKey);
map.put(PRIVATE_KEY, privateKey);
return map;
}
/**
* 默认生成密钥
*
* @return 密钥对象
* @throws Exception
*/
public static Map
return initKey(DEFAULT_SEED);
}
/**
* 取得私钥
*
* @param keyMap
* @return
* @throws Exception
*/
public static String getPrivateKey(Map
throws Exception {
Key key = (Key) keyMap.get(PRIVATE_KEY);
return encryptBASE64(key.getEncoded());
}
/**
* 取得公钥
*
* @param keyMap
* @return
* @throws Exception
*/
public static String getPublicKey(Map
throws Exception {
Key key = (Key) keyMap.get(PUBLIC_KEY);
return encryptBASE64(key.getEncoded());
}
}
再给出一个测试类：
Java代码
import static org.junit.Assert.*;
import java.util.Map;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class DSACoderTest {
@Test
public void test() throws Exception {
String inputStr = "abc";
byte[] data = inputStr.getBytes();
// 构建密钥
Map
// 获得密钥
String publicKey = DSACoder.getPublicKey(keyMap);
String privateKey = DSACoder.getPrivateKey(keyMap);
System.err.println("公钥:\r" + publicKey);
System.err.println("私钥:\r" + privateKey);
// 产生签名
String sign = DSACoder.sign(data, privateKey);
System.err.println("签名:\r" + sign);
// 验证签名
boolean status = DSACoder.verify(data, publicKey, sign);
System.err.println("状态:\r" + status);
assertTrue(status);
}
}
控制台输出：
Console代码
公钥:
MIIBtzCCASwGByqGSM44BAEwggEfAoGBAP1/U4EddRIpUt9KnC7s5Of2EbdSPO9EAMMeP4C2USZp
RV1AIlH7WT2NWPq/xfW6MPbLm1Vs14E7gB00b/JmYLdrmVClpJ+f6AR7ECLCT7up1/63xhv4O1fn
xqimFQ8E+4P208UewwI1VBNaFpEy9nXzrith1yrv8iIDGZ3RSAHHAhUAl2BQjxUjC8yykrmCouuE
C/BYHPUCgYEA9+GghdabPd7LvKtcNrhXuXmUr7v6OuqC+VdMCz0HgmdRWVeOutRZT+ZxBxCBgLRJ
FnEj6EwoFhO3zwkyjMim4TwWeotUfI0o4KOuHiuzpnWRbqN/C/ohNWLx+2J6ASQ7zKTxvqhRkImo
g9/hWuWfBpKLZl6Ae1UlZAFMO/7PSSoDgYQAAoGAIu4RUlcQLp49PI0MrbssOY+3uySVnp0TULSv
5T4VaHoKzsLHgGTrwOvsGA+V3yCNl2WDu3D84bSLF7liTWgOj+SMOEaPk4VyRTlLXZWGPsf1Mfd9
21XAbMeVyKDSHHVGbMjBScajf3bXooYQMlyoHiOt/WrCo+mv7efstMM0PGo=
私钥:
MIIBTAIBADCCASwGByqGSM44BAEwggEfAoGBAP1/U4EddRIpUt9KnC7s5Of2EbdSPO9EAMMeP4C2
USZpRV1AIlH7WT2NWPq/xfW6MPbLm1Vs14E7gB00b/JmYLdrmVClpJ+f6AR7ECLCT7up1/63xhv4
O1fnxqimFQ8E+4P208UewwI1VBNaFpEy9nXzrith1yrv8iIDGZ3RSAHHAhUAl2BQjxUjC8yykrmC
ouuEC/BYHPUCgYEA9+GghdabPd7LvKtcNrhXuXmUr7v6OuqC+VdMCz0HgmdRWVeOutRZT+ZxBxCB
gLRJFnEj6EwoFhO3zwkyjMim4TwWeotUfI0o4KOuHiuzpnWRbqN/C/ohNWLx+2J6ASQ7zKTxvqhR
kImog9/hWuWfBpKLZl6Ae1UlZAFMO/7PSSoEFwIVAIegLUtmm2oQKQJTOiLugHTSjl/q
签名:
MC0CFQCMg0J/uZmF8GuRpr3TNq48w60nDwIUJCyYNah+HtbU6NcQfy8Ac6LeLQs=
状态:
true
注意状态为true，就验证成功！
ECC
ECC-Elliptic Curves Cryptography，椭圆曲线密码编码学，是目前已知的公钥体制中，对每比特所提供加密强度最高的一种体制。在软件注册保护方面起到很大的作用，一般的序列号通常由该算法产生。
当我开始整理《Java加密技术（二）》的时候，我就已经在开始研究ECC了，但是关于Java实现ECC算法的资料实在是太少了，无论是国内还是国外的资料，无论是官方还是非官方的解释，最终只有一种答案——ECC算法在jdk1.5后加入支持，目前仅仅只能完成密钥的生成与解析。 如果想要获得ECC算法实现，需要调用硬件完成加密/解密（ECC算法相当耗费资源，如果单纯使用CPU进行加密/解密，效率低下），涉及到Java Card领域，PKCS#11。 其实，PKCS#11配置很简单，但缺乏硬件设备，无法尝试！
尽管如此，我照旧提供相应的Java实现代码，以供大家参考。
通过java代码实现如下：Coder类见 Java加密技术（一）
Java代码
import java.math.BigInteger;
import java.security.Key;
import java.security.KeyFactory;
import java.security.interfaces.ECPrivateKey;
import java.security.interfaces.ECPublicKey;
import java.security.spec.ECFieldF2m;
import java.security.spec.ECParameterSpec;
import java.security.spec.ECPoint;
import java.security.spec.ECPrivateKeySpec;
import java.security.spec.ECPublicKeySpec;
import java.security.spec.EllipticCurve;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.HashMap;
import java.util.Map;
import javax.crypto.Cipher;
import javax.crypto.NullCipher;
import sun.security.ec.ECKeyFactory;
import sun.security.ec.ECPrivateKeyImpl;
import sun.security.ec.ECPublicKeyImpl;
/**
* ECC安全编码组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class ECCCoder extends Coder {
public static final String ALGORITHM = "EC";
private static final String PUBLIC_KEY = "ECCPublicKey";
private static final String PRIVATE_KEY = "ECCPrivateKey";
/**
* 解密
* 用私钥解密
*
* @param data
* @param key
* @return
* @throws Exception
*/
public static byte[] decrypt(byte[] data, String key) throws Exception {
// 对密钥解密
byte[] keyBytes = decryptBASE64(key);
// 取得私钥
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = ECKeyFactory.INSTANCE;
ECPrivateKey priKey = (ECPrivateKey) keyFactory
.generatePrivate(pkcs8KeySpec);
ECPrivateKeySpec ecPrivateKeySpec = new ECPrivateKeySpec(priKey.getS(),
priKey.getParams());
// 对数据解密
// TODO Chipher不支持EC算法 未能实现
Cipher cipher = new NullCipher();
// Cipher.getInstance(ALGORITHM, keyFactory.getProvider());
cipher.init(Cipher.DECRYPT_MODE, priKey, ecPrivateKeySpec.getParams());
return cipher.doFinal(data);
}
/**
* 加密
* 用公钥加密
*
* @param data
* @param privateKey
* @return
* @throws Exception
*/
public static byte[] encrypt(byte[] data, String privateKey)
throws Exception {
// 对公钥解密
byte[] keyBytes = decryptBASE64(privateKey);
// 取得公钥
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = ECKeyFactory.INSTANCE;
ECPublicKey pubKey = (ECPublicKey) keyFactory
.generatePublic(x509KeySpec);
ECPublicKeySpec ecPublicKeySpec = new ECPublicKeySpec(pubKey.getW(),
pubKey.getParams());
// 对数据加密
// TODO Chipher不支持EC算法 未能实现
Cipher cipher = new NullCipher();
// Cipher.getInstance(ALGORITHM, keyFactory.getProvider());
cipher.init(Cipher.ENCRYPT_MODE, pubKey, ecPublicKeySpec.getParams());
return cipher.doFinal(data);
}
/**
* 取得私钥
*
* @param keyMap
* @return
* @throws Exception
*/
public static String getPrivateKey(Map
throws Exception {
Key key = (Key) keyMap.get(PRIVATE_KEY);
return encryptBASE64(key.getEncoded());
}
/**
* 取得公钥
*
* @param keyMap
* @return
* @throws Exception
*/
public static String getPublicKey(Map
throws Exception {
Key key = (Key) keyMap.get(PUBLIC_KEY);
return encryptBASE64(key.getEncoded());
}
/**
* 初始化密钥
*
* @return
* @throws Exception
*/
public static Map
BigInteger x1 = new BigInteger(
"2fe13c0537bbc11acaa07d793de4e6d5e5c94eee8", 16);
BigInteger x2 = new BigInteger(
"289070fb05d38ff58321f2e800536d538ccdaa3d9", 16);
ECPoint g = new ECPoint(x1, x2);
// the order of generator
BigInteger n = new BigInteger(
"5846006549323611672814741753598448348329118574063", 10);
// the cofactor
int h = 2;
int m = 163;
int[] ks = { 7, 6, 3 };
ECFieldF2m ecField = new ECFieldF2m(m, ks);
// y^2+xy=x^3+x^2+1
BigInteger a = new BigInteger("1", 2);
BigInteger b = new BigInteger("1", 2);
EllipticCurve ellipticCurve = new EllipticCurve(ecField, a, b);
ECParameterSpec ecParameterSpec = new ECParameterSpec(ellipticCurve, g,
n, h);
// 公钥
ECPublicKey publicKey = new ECPublicKeyImpl(g, ecParameterSpec);
BigInteger s = new BigInteger(
"1234006549323611672814741753598448348329118574063", 10);
// 私钥
ECPrivateKey privateKey = new ECPrivateKeyImpl(s, ecParameterSpec);
Map
keyMap.put(PUBLIC_KEY, publicKey);
keyMap.put(PRIVATE_KEY, privateKey);
return keyMap;
}
}
请注意上述代码中的TODO内容，再次提醒注意，Chipher不支持EC算法 ，以上代码仅供参考。Chipher、Signature、KeyPairGenerator、KeyAgreement、SecretKey均不支持EC算法。为了确保程序能够正常执行，我们使用了NullCipher类，验证程序。
照旧提供一个测试类：
Java代码
import static org.junit.Assert.*;
import java.math.BigInteger;
import java.security.spec.ECFieldF2m;
import java.security.spec.ECParameterSpec;
import java.security.spec.ECPoint;
import java.security.spec.ECPrivateKeySpec;
import java.security.spec.ECPublicKeySpec;
import java.security.spec.EllipticCurve;
import java.util.Map;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class ECCCoderTest {
@Test
public void test() throws Exception {
String inputStr = "abc";
byte[] data = inputStr.getBytes();
Map
String publicKey = ECCCoder.getPublicKey(keyMap);
String privateKey = ECCCoder.getPrivateKey(keyMap);
System.err.println("公钥: \n" + publicKey);
System.err.println("私钥： \n" + privateKey);
byte[] encodedData = ECCCoder.encrypt(data, publicKey);
byte[] decodedData = ECCCoder.decrypt(encodedData, privateKey);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
}
}
控制台输出：
Console代码
公钥:
MEAwEAYHKoZIzj0CAQYFK4EEAAEDLAAEAv4TwFN7vBGsqgfXk95ObV5clO7oAokHD7BdOP9YMh8u
gAU21TjM2qPZ
私钥：
MDICAQAwEAYHKoZIzj0CAQYFK4EEAAEEGzAZAgEBBBTYJsR3BN7TFw7JHcAHFkwNmfil7w==
加密前: abc
解密后: abc
Java加密技术（八）——数字证书
博客分类：
Java／Security
Javakeystorekeytool数字证书
本篇的主要内容为Java证书体系的实现。
请大家在阅读本篇内容时先阅读 Java加密技术（四），预先了解RSA加密算法。
在构建Java代码实现前，我们需要完成证书的制作。
1.生成keyStroe文件
在命令行下执行以下命令：
Shell代码
keytool -genkey -validity 36000 -alias www.zlex.org -keyalg RSA -keystore d:\zlex.keystore
其中
-genkey表示生成密钥
-validity指定证书有效期，这里是36000天
-alias指定别名，这里是www.zlex.org
-keyalg指定算法，这里是RSA
-keystore指定存储位置，这里是d:\zlex.keystore
在这里我使用的密码为 123456
控制台输出：
Console代码
输入keystore密码：
再次输入新密码:
您的名字与姓氏是什么？
[Unknown]： www.zlex.org
您的组织单位名称是什么？
[Unknown]： zlex
您的组织名称是什么？
[Unknown]： zlex
您所在的城市或区域名称是什么？
[Unknown]： BJ
您所在的州或省份名称是什么？
[Unknown]： BJ
该单位的两字母国家代码是什么
[Unknown]： CN
CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN 正确吗？
[否]： Y
输入
（如果和 keystore 密码相同，按回车）：
再次输入新密码:
这时，在D盘下会生成一个zlex.keystore的文件。
2.生成自签名证书
光有keyStore文件是不够的，还需要证书文件，证书才是直接提供给外界使用的公钥凭证。
导出证书：
Shell代码
keytool -export -keystore d:\zlex.keystore -alias www.zlex.org -file d:\zlex.cer -rfc
其中
-export指定为导出操作
-keystore指定keystore文件
-alias指定导出keystore文件中的别名
-file指向导出路径
-rfc以文本格式输出，也就是以BASE64编码输出
这里的密码是 123456
控制台输出：
Console代码
输入keystore密码：
保存在文件中的认证
当然，使用方是需要导入证书的！
可以通过自签名证书完成CAS单点登录系统的构建！
Ok，准备工作完成，开始Java实现！
通过java代码实现如下：Coder类见 Java加密技术（一）
Java代码
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Date;
import javax.crypto.Cipher;
/**
* 证书组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class CertificateCoder extends Coder {
/**
* Java密钥库(Java Key Store，JKS)KEY_STORE
*/
public static final String KEY_STORE = "JKS";
public static final String X509 = "X.509";
/**
* 由KeyStore获得私钥
*
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
private static PrivateKey getPrivateKey(String keyStorePath, String alias,
String password) throws Exception {
KeyStore ks = getKeyStore(keyStorePath, password);
PrivateKey key = (PrivateKey) ks.getKey(alias, password.toCharArray());
return key;
}
/**
* 由Certificate获得公钥
*
* @param certificatePath
* @return
* @throws Exception
*/
private static PublicKey getPublicKey(String certificatePath)
throws Exception {
Certificate certificate = getCertificate(certificatePath);
PublicKey key = certificate.getPublicKey();
return key;
}
/**
* 获得Certificate
*
* @param certificatePath
* @return
* @throws Exception
*/
private static Certificate getCertificate(String certificatePath)
throws Exception {
CertificateFactory certificateFactory = CertificateFactory
.getInstance(X509);
FileInputStream in = new FileInputStream(certificatePath);
Certificate certificate = certificateFactory.generateCertificate(in);
in.close();
return certificate;
}
/**
* 获得Certificate
*
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
private static Certificate getCertificate(String keyStorePath,
String alias, String password) throws Exception {
KeyStore ks = getKeyStore(keyStorePath, password);
Certificate certificate = ks.getCertificate(alias);
return certificate;
}
/**
* 获得KeyStore
*
* @param keyStorePath
* @param password
* @return
* @throws Exception
*/
private static KeyStore getKeyStore(String keyStorePath, String password)
throws Exception {
FileInputStream is = new FileInputStream(keyStorePath);
KeyStore ks = KeyStore.getInstance(KEY_STORE);
ks.load(is, password.toCharArray());
is.close();
return ks;
}
/**
* 私钥加密
*
* @param data
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
public static byte[] encryptByPrivateKey(byte[] data, String keyStorePath,
String alias, String password) throws Exception {
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password);
// 对数据加密
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 私钥解密
*
* @param data
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
public static byte[] decryptByPrivateKey(byte[] data, String keyStorePath,
String alias, String password) throws Exception {
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password);
// 对数据加密
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 公钥加密
*
* @param data
* @param certificatePath
* @return
* @throws Exception
*/
public static byte[] encryptByPublicKey(byte[] data, String certificatePath)
throws Exception {
// 取得公钥
PublicKey publicKey = getPublicKey(certificatePath);
// 对数据加密
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 公钥解密
*
* @param data
* @param certificatePath
* @return
* @throws Exception
*/
public static byte[] decryptByPublicKey(byte[] data, String certificatePath)
throws Exception {
// 取得公钥
PublicKey publicKey = getPublicKey(certificatePath);
// 对数据加密
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 验证Certificate
*
* @param certificatePath
* @return
*/
public static boolean verifyCertificate(String certificatePath) {
return verifyCertificate(new Date(), certificatePath);
}
/**
* 验证Certificate是否过期或无效
*
* @param date
* @param certificatePath
* @return
*/
public static boolean verifyCertificate(Date date, String certificatePath) {
boolean status = true;
try {
// 取得证书
Certificate certificate = getCertificate(certificatePath);
// 验证证书是否过期或无效
status = verifyCertificate(date, certificate);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 验证证书是否过期或无效
*
* @param date
* @param certificate
* @return
*/
private static boolean verifyCertificate(Date date, Certificate certificate) {
boolean status = true;
try {
X509Certificate x509Certificate = (X509Certificate) certificate;
x509Certificate.checkValidity(date);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 签名
*
* @param keyStorePath
* @param alias
* @param password
*
* @return
* @throws Exception
*/
public static String sign(byte[] sign, String keyStorePath, String alias,
String password) throws Exception {
// 获得证书
X509Certificate x509Certificate = (X509Certificate) getCertificate(
keyStorePath, alias, password);
// 获取私钥
KeyStore ks = getKeyStore(keyStorePath, password);
// 取得私钥
PrivateKey privateKey = (PrivateKey) ks.getKey(alias, password
.toCharArray());
// 构建签名
Signature signature = Signature.getInstance(x509Certificate
.getSigAlgName());
signature.initSign(privateKey);
signature.update(sign);
return encryptBASE64(signature.sign());
}
/**
* 验证签名
*
* @param data
* @param sign
* @param certificatePath
* @return
* @throws Exception
*/
public static boolean verify(byte[] data, String sign,
String certificatePath) throws Exception {
// 获得证书
X509Certificate x509Certificate = (X509Certificate) getCertificate(certificatePath);
// 获得公钥
PublicKey publicKey = x509Certificate.getPublicKey();
// 构建签名
Signature signature = Signature.getInstance(x509Certificate
.getSigAlgName());
signature.initVerify(publicKey);
signature.update(data);
return signature.verify(decryptBASE64(sign));
}
/**
* 验证Certificate
*
* @param keyStorePath
* @param alias
* @param password
* @return
*/
public static boolean verifyCertificate(Date date, String keyStorePath,
String alias, String password) {
boolean status = true;
try {
Certificate certificate = getCertificate(keyStorePath, alias,
password);
status = verifyCertificate(date, certificate);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 验证Certificate
*
* @param keyStorePath
* @param alias
* @param password
* @return
*/
public static boolean verifyCertificate(String keyStorePath, String alias,
String password) {
return verifyCertificate(new Date(), keyStorePath, alias, password);
}
}
再给出一个测试类：
Java代码
import static org.junit.Assert.*;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class CertificateCoderTest {
private String password = "123456";
private String alias = "www.zlex.org";
private String certificatePath = "d:/zlex.cer";
private String keyStorePath = "d:/zlex.keystore";
@Test
public void test() throws Exception {
System.err.println("公钥加密——私钥解密");
String inputStr = "Ceritifcate";
byte[] data = inputStr.getBytes();
byte[] encrypt = CertificateCoder.encryptByPublicKey(data,
certificatePath);
byte[] decrypt = CertificateCoder.decryptByPrivateKey(encrypt,
keyStorePath, alias, password);
String outputStr = new String(decrypt);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
// 验证数据一致
assertArrayEquals(data, decrypt);
// 验证证书有效
assertTrue(CertificateCoder.verifyCertificate(certificatePath));
}
@Test
public void testSign() throws Exception {
System.err.println("私钥加密——公钥解密");
String inputStr = "sign";
byte[] data = inputStr.getBytes();
byte[] encodedData = CertificateCoder.encryptByPrivateKey(data,
keyStorePath, alias, password);
byte[] decodedData = CertificateCoder.decryptByPublicKey(encodedData,
certificatePath);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
System.err.println("私钥签名——公钥验证签名");
// 产生签名
String sign = CertificateCoder.sign(encodedData, keyStorePath, alias,
password);
System.err.println("签名:\r" + sign);
// 验证签名
boolean status = CertificateCoder.verify(encodedData, sign,
certificatePath);
System.err.println("状态:\r" + status);
assertTrue(status);
}
}
控制台输出：
Console代码
公钥加密——私钥解密
加密前: Ceritificate
解密后: Ceritificate
私钥加密——公钥解密
加密前: sign
解密后: sign
私钥签名——公钥验证签名
签名:
pqBn5m6PJlfOjH0A6U2o2mUmBsfgyEY1NWCbiyA/I5Gc3gaVNVIdj/zkGNZRqTjhf3+J9a9z9EI7
6F2eWYd7punHx5oh6hfNgcKbVb52EfItl4QEN+djbXiPynn07+Lbg1NOjULnpEd6ZhLP1YwrEAuM
OfvX0e7/wplxLbySaKQ=
状态:
true
由此完成了证书验证体系！
同样，我们可以对代码做签名——代码签名！
通过工具JarSigner可以完成代码签名。
这里我们对tools.jar做代码签名，命令如下：
Shell代码
jarsigner -storetype jks -keystore zlex.keystore -verbose tools.jar www.zlex.org
控制台输出：
Console代码
输入密钥库的口令短语：
正在更新： META-INF/WWW_ZLEX.SF
正在更新： META-INF/WWW_ZLEX.RSA
正在签名： org/zlex/security/Security.class
正在签名： org/zlex/tool/Main$1.class
正在签名： org/zlex/tool/Main$2.class
正在签名： org/zlex/tool/Main.class
警告：
签名者证书将在六个月内过期。
此时，我们可以对签名后的jar做验证！
验证tools.jar，命令如下：
Shell代码
jarsigner -verify -verbose -certs tools.jar
控制台输出：
Console代码
402 Sat Jun 20 16:25:14 CST 2009 META-INF/MANIFEST.MF
532 Sat Jun 20 16:25:14 CST 2009 META-INF/WWW_ZLEX.SF
889 Sat Jun 20 16:25:14 CST 2009 META-INF/WWW_ZLEX.RSA
sm 590 Wed Dec 10 13:03:42 CST 2008 org/zlex/security/Security.class
X.509, CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
[证书将在 09-9-18 下午3:27 到期]
sm 705 Tue Dec 16 18:00:56 CST 2008 org/zlex/tool/Main$1.class
X.509, CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
[证书将在 09-9-18 下午3:27 到期]
sm 779 Tue Dec 16 18:00:56 CST 2008 org/zlex/tool/Main$2.class
X.509, CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
[证书将在 09-9-18 下午3:27 到期]
sm 12672 Tue Dec 16 18:00:56 CST 2008 org/zlex/tool/Main.class
X.509, CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
[证书将在 09-9-18 下午3:27 到期]
s = 已验证签名
m = 在清单中列出条目
k = 在密钥库中至少找到了一个证书
i = 在身份作用域内至少找到了一个证书
jar 已验证。
警告：
此 jar 包含签名者证书将在六个月内过期的条目。
代码签名认证的用途主要是对发布的软件做验证，支持 Sun Java .jar (Java Applet) 文件(J2SE)和 J2ME MIDlet Suite 文件。
Java加密技术（九）——初探SSL
博客分类：
Java／Security
JavaTomcatsslkeystorekeytool
在Java加密技术（八）中，我们模拟了一个基于RSA非对称加密网络的安全通信。现在我们深度了解一下现有的安全网络通信——SSL。
我们需要构建一个由CA机构签发的有效证书，这里我们使用上文中生成的自签名证书zlex.cer
这里，我们将证书导入到我们的密钥库。
Shell代码
keytool -import -alias www.zlex.org -file d:/zlex.cer -keystore d:/zlex.keystore
其中
-import表示导入
-alias指定别名，这里是www.zlex.org
-file指定算法，这里是d:/zlex.cer
-keystore指定存储位置，这里是d:/zlex.keystore
在这里我使用的密码为654321
控制台输出：
Console代码
输入keystore密码：
再次输入新密码:
所有者:CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
签发人:CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
序列号:4a1e48df
有效期: Thu May 28 16:18:39 CST 2009 至Wed Aug 26 16:18:39 CST 2009
证书指纹:
MD5:19:CA:E6:36:E2:DF:AD:96:31:97:2F:A9:AD:FC:37:6A
SHA1:49:88:30:59:29:45:F1:69:CA:97:A9:6D:8A:CF:08:D2:C3:D5:C0:C4
签名算法名称:SHA1withRSA
版本: 3
信任这个认证？ [否]： y
认证已添加至keystore中
OK，最复杂的准备工作已经完成。
接下来我们将域名www.zlex.org定位到本机上。打开C:\Windows\System32\drivers\etc\hosts文件，将www.zlex.org绑定在本机上。在文件末尾追加127.0.0.1 www.zlex.org。现在通过地址栏访问http://www.zlex.org，或者通过ping命令，如果能够定位到本机，域名映射就搞定了。
现在，配置tomcat。先将zlex.keystore拷贝到tomcat的conf目录下，然后配置server.xml。将如下内容加入配置文件
Xml代码
URIEncoding="UTF-8"
clientAuth="false"
keystoreFile="conf/zlex.keystore"
keystorePass="123456"
maxThreads="150"
port="443"
protocol="HTTP/1.1"
scheme="https"
secure="true"
sslProtocol="TLS" />
注意clientAuth="false"测试阶段，置为false，正式使用时建议使用true。现在启动tomcat，访问https://www.zlex.org/。
显然，证书未能通过认证，这个时候你可以选择安装证书（上文中的zlex.cer文件就是证书），作为受信任的根证书颁发机构导入，再次重启浏览器（IE，其他浏览器对于域名www.zlex.org不支持本地方式访问），访问https://www.zlex.org/，你会看到地址栏中会有个小锁，就说明安装成功。所有的浏览器联网操作已经在RSA加密解密系统的保护之下了。但似乎我们感受不到。
这个时候很多人开始怀疑，如果我们要手工做一个这样的https的访问是不是需要把浏览器的这些个功能都实现呢？不需要！
接着上篇内容，给出如下代码实现：
Java代码
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Date;
import javax.crypto.Cipher;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManagerFactory;
/**
* 证书组件
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public abstract class CertificateCoder extends Coder {
/**
* Java密钥库(Java Key Store，JKS)KEY_STORE
*/
public static final String KEY_STORE = "JKS";
public static final String X509 = "X.509";
public static final String SunX509 = "SunX509";
public static final String SSL = "SSL";
/**
* 由KeyStore获得私钥
*
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
private static PrivateKey getPrivateKey(String keyStorePath, String alias,
String password) throws Exception {
KeyStore ks = getKeyStore(keyStorePath, password);
PrivateKey key = (PrivateKey) ks.getKey(alias, password.toCharArray());
return key;
}
/**
* 由Certificate获得公钥
*
* @param certificatePath
* @return
* @throws Exception
*/
private static PublicKey getPublicKey(String certificatePath)
throws Exception {
Certificate certificate = getCertificate(certificatePath);
PublicKey key = certificate.getPublicKey();
return key;
}
/**
* 获得Certificate
*
* @param certificatePath
* @return
* @throws Exception
*/
private static Certificate getCertificate(String certificatePath)
throws Exception {
CertificateFactory certificateFactory = CertificateFactory
.getInstance(X509);
FileInputStream in = new FileInputStream(certificatePath);
Certificate certificate = certificateFactory.generateCertificate(in);
in.close();
return certificate;
}
/**
* 获得Certificate
*
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
private static Certificate getCertificate(String keyStorePath,
String alias, String password) throws Exception {
KeyStore ks = getKeyStore(keyStorePath, password);
Certificate certificate = ks.getCertificate(alias);
return certificate;
}
/**
* 获得KeyStore
*
* @param keyStorePath
* @param password
* @return
* @throws Exception
*/
private static KeyStore getKeyStore(String keyStorePath, String password)
throws Exception {
FileInputStream is = new FileInputStream(keyStorePath);
KeyStore ks = KeyStore.getInstance(KEY_STORE);
ks.load(is, password.toCharArray());
is.close();
return ks;
}
/**
* 私钥加密
*
* @param data
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
public static byte[] encryptByPrivateKey(byte[] data, String keyStorePath,
String alias, String password) throws Exception {
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password);
// 对数据加密
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 私钥解密
*
* @param data
* @param keyStorePath
* @param alias
* @param password
* @return
* @throws Exception
*/
public static byte[] decryptByPrivateKey(byte[] data, String keyStorePath,
String alias, String password) throws Exception {
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password);
// 对数据加密
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 公钥加密
*
* @param data
* @param certificatePath
* @return
* @throws Exception
*/
public static byte[] encryptByPublicKey(byte[] data, String certificatePath)
throws Exception {
// 取得公钥
PublicKey publicKey = getPublicKey(certificatePath);
// 对数据加密
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 公钥解密
*
* @param data
* @param certificatePath
* @return
* @throws Exception
*/
public static byte[] decryptByPublicKey(byte[] data, String certificatePath)
throws Exception {
// 取得公钥
PublicKey publicKey = getPublicKey(certificatePath);
// 对数据加密
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 验证Certificate
*
* @param certificatePath
* @return
*/
public static boolean verifyCertificate(String certificatePath) {
return verifyCertificate(new Date(), certificatePath);
}
/**
* 验证Certificate是否过期或无效
*
* @param date
* @param certificatePath
* @return
*/
public static boolean verifyCertificate(Date date, String certificatePath) {
boolean status = true;
try {
// 取得证书
Certificate certificate = getCertificate(certificatePath);
// 验证证书是否过期或无效
status = verifyCertificate(date, certificate);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 验证证书是否过期或无效
*
* @param date
* @param certificate
* @return
*/
private static boolean verifyCertificate(Date date, Certificate certificate) {
boolean status = true;
try {
X509Certificate x509Certificate = (X509Certificate) certificate;
x509Certificate.checkValidity(date);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 签名
*
* @param keyStorePath
* @param alias
* @param password
*
* @return
* @throws Exception
*/
public static String sign(byte[] sign, String keyStorePath, String alias,
String password) throws Exception {
// 获得证书
X509Certificate x509Certificate = (X509Certificate) getCertificate(
keyStorePath, alias, password);
// 获取私钥
KeyStore ks = getKeyStore(keyStorePath, password);
// 取得私钥
PrivateKey privateKey = (PrivateKey) ks.getKey(alias, password
.toCharArray());
// 构建签名
Signature signature = Signature.getInstance(x509Certificate
.getSigAlgName());
signature.initSign(privateKey);
signature.update(sign);
return encryptBASE64(signature.sign());
}
/**
* 验证签名
*
* @param data
* @param sign
* @param certificatePath
* @return
* @throws Exception
*/
public static boolean verify(byte[] data, String sign,
String certificatePath) throws Exception {
// 获得证书
X509Certificate x509Certificate = (X509Certificate) getCertificate(certificatePath);
// 获得公钥
PublicKey publicKey = x509Certificate.getPublicKey();
// 构建签名
Signature signature = Signature.getInstance(x509Certificate
.getSigAlgName());
signature.initVerify(publicKey);
signature.update(data);
return signature.verify(decryptBASE64(sign));
}
/**
* 验证Certificate
*
* @param keyStorePath
* @param alias
* @param password
* @return
*/
public static boolean verifyCertificate(Date date, String keyStorePath,
String alias, String password) {
boolean status = true;
try {
Certificate certificate = getCertificate(keyStorePath, alias,
password);
status = verifyCertificate(date, certificate);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 验证Certificate
*
* @param keyStorePath
* @param alias
* @param password
* @return
*/
public static boolean verifyCertificate(String keyStorePath, String alias,
String password) {
return verifyCertificate(new Date(), keyStorePath, alias, password);
}
/**
* 获得SSLSocektFactory
*
* @param password
* 密码
* @param keyStorePath
* 密钥库路径
*
* @param trustKeyStorePath
* 信任库路径
* @return
* @throws Exception
*/
private static SSLSocketFactory getSSLSocketFactory(String password,
String keyStorePath, String trustKeyStorePath) throws Exception {
// 初始化密钥库
KeyManagerFactory keyManagerFactory = KeyManagerFactory
.getInstance(SunX509);
KeyStore keyStore = getKeyStore(keyStorePath, password);
keyManagerFactory.init(keyStore, password.toCharArray());
// 初始化信任库
TrustManagerFactory trustManagerFactory = TrustManagerFactory
.getInstance(SunX509);
KeyStore trustkeyStore = getKeyStore(trustKeyStorePath, password);
trustManagerFactory.init(trustkeyStore);
// 初始化SSL上下文
SSLContext ctx = SSLContext.getInstance(SSL);
ctx.init(keyManagerFactory.getKeyManagers(), trustManagerFactory
.getTrustManagers(), null);
SSLSocketFactory sf = ctx.getSocketFactory();
return sf;
}
/**
* 为HttpsURLConnection配置SSLSocketFactory
*
* @param conn
* HttpsURLConnection
* @param password
* 密码
* @param keyStorePath
* 密钥库路径
*
* @param trustKeyStorePath
* 信任库路径
* @throws Exception
*/
public static void configSSLSocketFactory(HttpsURLConnection conn,
String password, String keyStorePath, String trustKeyStorePath)
throws Exception {
conn.setSSLSocketFactory(getSSLSocketFactory(password, keyStorePath,
trustKeyStorePath));
}
}
增加了configSSLSocketFactory方法供外界调用，该方法为HttpsURLConnection配置了SSLSocketFactory。当HttpsURLConnection配置了SSLSocketFactory后，我们就可以通过HttpsURLConnection的getInputStream、getOutputStream，像往常使用HttpURLConnection做操作了。尤其要说明一点，未配置SSLSocketFactory前，HttpsURLConnection的getContentLength()获得值永远都是-1。
给出相应测试类：
Java代码
import static org.junit.Assert.*;
import java.io.DataInputStream;
import java.io.InputStream;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class CertificateCoderTest {
private String password = "123456";
private String alias = "www.zlex.org";
private String certificatePath = "d:/zlex.cer";
private String keyStorePath = "d:/zlex.keystore";
private String clientKeyStorePath = "d:/zlex-client.keystore";
private String clientPassword = "654321";
@Test
public void test() throws Exception {
System.err.println("公钥加密——私钥解密");
String inputStr = "Ceritifcate";
byte[] data = inputStr.getBytes();
byte[] encrypt = CertificateCoder.encryptByPublicKey(data,
certificatePath);
byte[] decrypt = CertificateCoder.decryptByPrivateKey(encrypt,
keyStorePath, alias, password);
String outputStr = new String(decrypt);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
// 验证数据一致
assertArrayEquals(data, decrypt);
// 验证证书有效
assertTrue(CertificateCoder.verifyCertificate(certificatePath));
}
@Test
public void testSign() throws Exception {
System.err.println("私钥加密——公钥解密");
String inputStr = "sign";
byte[] data = inputStr.getBytes();
byte[] encodedData = CertificateCoder.encryptByPrivateKey(data,
keyStorePath, alias, password);
byte[] decodedData = CertificateCoder.decryptByPublicKey(encodedData,
certificatePath);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
System.err.println("私钥签名——公钥验证签名");
// 产生签名
String sign = CertificateCoder.sign(encodedData, keyStorePath, alias,
password);
System.err.println("签名:\r" + sign);
// 验证签名
boolean status = CertificateCoder.verify(encodedData, sign,
certificatePath);
System.err.println("状态:\r" + status);
assertTrue(status);
}
@Test
public void testHttps() throws Exception {
URL url = new URL("https://www.zlex.org/examples/");
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
CertificateCoder.configSSLSocketFactory(conn, clientPassword,
clientKeyStorePath, clientKeyStorePath);
InputStream is = conn.getInputStream();
int length = conn.getContentLength();
DataInputStream dis = new DataInputStream(is);
byte[] data = new byte[length];
dis.readFully(data);
dis.close();
System.err.println(new String(data));
conn.disconnect();
}
}
注意testHttps方法，几乎和我们往常做HTTP访问没有差别，我们来看控制台输出：
Console代码
Apache Tomcat Examples
通过浏览器直接访问https://www.zlex.org/examples/你也会获得上述内容。也就是说应用甲方作为服务器构建tomcat服务，乙方可以通过上述方式访问甲方受保护的SSL应用，并且不需要考虑具体的加密解密问题。甲乙双方可以经过相应配置，通过双方的tomcat配置有效的SSL服务，简化上述代码实现，完全通过证书配置完成SSL双向认证！
Java加密技术（十）——单向认证
博客分类：
Java／Security
Javatomcatkeytoolkeystore
在Java 加密技术（九）中，我们使用自签名证书完成了认证。接下来，我们使用第三方CA签名机构完成证书签名。
这里我们使用thawte提供的测试用21天免费ca证书。
1.要在该网站上注明你的域名，这里使用www.zlex.org作为测试用域名（请勿使用该域名作为你的域名地址，该域名受法律保护！请使用其他非注册域名！）。
2.如果域名有效，你会收到邮件要求你访问https://www.thawte.com/cgi/server/try.exe获得ca证书。
3.复述密钥库的创建。
Shell代码
keytool -genkey -validity 36000 -alias www.zlex.org -keyalg RSA -keystore d:\zlex.keystore
在这里我使用的密码为 123456
控制台输出：
Console代码
输入keystore密码：
再次输入新密码:
您的名字与姓氏是什么？
[Unknown]： www.zlex.org
您的组织单位名称是什么？
[Unknown]： zlex
您的组织名称是什么？
[Unknown]： zlex
您所在的城市或区域名称是什么？
[Unknown]： BJ
您所在的州或省份名称是什么？
[Unknown]： BJ
该单位的两字母国家代码是什么
[Unknown]： CN
CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN 正确吗？
[否]： Y
输入
（如果和 keystore 密码相同，按回车）：
再次输入新密码:
4.通过如下命令，从zlex.keystore中导出CA证书申请。
Shell代码
keytool -certreq -alias www.zlex.org -file d:\zlex.csr -keystore d:\zlex.keystore -v
你会获得zlex.csr文件，可以用记事本打开，内容如下格式：
Text代码
-----BEGIN NEW CERTIFICATE REQUEST-----
MIIBnDCCAQUCAQAwXDELMAkGA1UEBhMCQ04xCzAJBgNVBAgTAkJKMQswCQYDVQQHEwJCSjENMAsG
A1UEChMEemxleDENMAsGA1UECxMEemxleDEVMBMGA1UEAxMMd3d3LnpsZXgub3JnMIGfMA0GCSqG
SIb3DQEBAQUAA4GNADCBiQKBgQCR6DXU9Mp+mCKO7cv9JPsj0n1Ec/GpM09qvhpgX3FNad/ZWSDc
vU77YXZSoF9hQp3w1LC+eeKgd2MlVpXTvbVwBNVd2HiQPp37ic6BUUjSaX8LHtCl7l0BIEye9qQ2
j8G0kak7e8ZA0s7nb3Ymq/K8BV7v0MQIdhIc1bifK9ZDewIDAQABoAAwDQYJKoZIhvcNAQEFBQAD
gYEAMA1r2fbZPtNx37U9TRwadCH2TZZecwKJS/hskNm6ryPKIAp9APWwAyj8WJHRBz5SpZM4zmYO
oMCI8BcnY2A4JP+R7/SwXTdH/xcg7NVghd9A2SCgqMpF7KMfc5dE3iygdiPu+UhY200Dvpjx8gmJ
1UbH3+nqMUyCrZgURFslOUY=
-----END NEW CERTIFICATE REQUEST-----
5.将上述文件内容拷贝到https://www.thawte.com/cgi/server/try.exe中，点击next，获得回应内容，这里是p7b格式。
内容如下：
Text代码
-----BEGIN PKCS7-----
MIIF3AYJKoZIhvcNAQcCoIIFzTCCBckCAQExADALBgkqhkiG9w0BBwGgggWxMIID
EDCCAnmgAwIBAgIQA/mx/pKoaB+KGX2hveFU9zANBgkqhkiG9w0BAQUFADCBhzEL
MAkGA1UEBhMCWkExIjAgBgNVBAgTGUZPUiBURVNUSU5HIFBVUlBPU0VTIE9OTFkx
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SjELMAkGA1UEBxMCQkoxDTALBgNVBAoTBHpsZXgxDTALBgNVBAsTBHpsZXgxFTAT
BgNVBAMTDHd3dy56bGV4Lm9yZzCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA
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T05MWTEdMBsGA1UEChMUVGhhd3RlIENlcnRpZmljYXRpb24xFzAVBgNVBAsTDlRF
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cqu4EUk9Ji20egKKfmqRzmQFLP7+1niSdfJEUE7cKY40QoI99270PTrLjJeaMcCl
+AYl+kD+RL5BtuKKU3PurYcsCsre6aTvjMcqpTJOGeSPAgMBAAGjEzARMA8GA1Ud
EwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEEBQADgYEAgozj7BkD9O8si2V0v+EZ/t7E
fz/LC8y6mD7IBUziHy5/53ymGAGLtyhXHvX+UIE6UWbHro3IqVkrmY5uC93Z2Wew
A/6edK3KFUcUikrLeewM7gmqsiASEKx2mKRKlu12jXyNS5tXrPWRDvUKtFC1uL9a
12rFAQS2BkIk7aU+ghYxAA==
-----END PKCS7-----
将其存储为zlex.p7b
6.将由CA签发的证书导入密钥库。
Shell代码
keytool -import -trustcacerts -alias www.zlex.org -file d:\zlex.p7b -keystore d:\zlex.keystore -v
在这里我使用的密码为 123456
控制台输出：
Console代码
输入keystore密码：
回复中的最高级认证：
所有者:CN=Thawte Test CA Root, OU=TEST TEST TEST, O=Thawte Certification, ST=FOR
TESTING PURPOSES ONLY, C=ZA
签发人:CN=Thawte Test CA Root, OU=TEST TEST TEST, O=Thawte Certification, ST=FOR
TESTING PURPOSES ONLY, C=ZA
序列号:0
有效期: Thu Aug 01 08:00:00 CST 1996 至Fri Jan 01 05:59:59 CST 2021
证书指纹:
MD5:5E:E0:0E:1D:17:B7:CA:A5:7D:36:D6:02:DF:4D:26:A4
SHA1:39:C6:9D:27:AF:DC:EB:47:D6:33:36:6A:B2:05:F1:47:A9:B4:DA:EA
签名算法名称:MD5withRSA
版本: 3
扩展:
#1: ObjectId: 2.5.29.19 Criticality=true
BasicConstraints:[
CA:true
PathLen:2147483647
]
... 是不可信的。 还是要安装回复？ [否]： Y
认证回复已安装在 keystore中
[正在存储 d:\zlex.keystore]
7.域名定位
将域名www.zlex.org定位到本机上。打开C:\Windows\System32\drivers\etc\hosts文件，将www.zlex.org绑定在本机上。在文件末尾追加127.0.0.1 www.zlex.org。现在通过地址栏访问http://www.zlex.org，或者通过ping命令，如果能够定位到本机，域名映射就搞定了。
8.配置server.xml
Xml代码
keystorePass="123456"
truststoreFile="conf/zlex.keystore"
truststorePass="123456"
SSLEnabled="true"
URIEncoding="UTF-8"
clientAuth="false"
maxThreads="150"
port="443"
protocol="HTTP/1.1"
scheme="https"
secure="true"
sslProtocol="TLS" />
将文件zlex.keystore拷贝到tomcat的conf目录下，重新启动tomcat。访问https://www.zlex.org/，我们发现联网有些迟钝。大约5秒钟后，网页正常显示，同时有如下图所示：
浏览器验证了该CA机构的有效性。
打开证书，如下图所示：
调整测试类：
Java代码
import static org.junit.Assert.*;
import java.io.DataInputStream;
import java.io.InputStream;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
import org.junit.Test;
/**
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class CertificateCoderTest {
private String password = "123456";
private String alias = "www.zlex.org";
private String certificatePath = "d:/zlex.cer";
private String keyStorePath = "d:/zlex.keystore";
@Test
public void test() throws Exception {
System.err.println("公钥加密——私钥解密");
String inputStr = "Ceritifcate";
byte[] data = inputStr.getBytes();
byte[] encrypt = CertificateCoder.encryptByPublicKey(data,
certificatePath);
byte[] decrypt = CertificateCoder.decryptByPrivateKey(encrypt,
keyStorePath, alias, password);
String outputStr = new String(decrypt);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
// 验证数据一致
assertArrayEquals(data, decrypt);
// 验证证书有效
assertTrue(CertificateCoder.verifyCertificate(certificatePath));
}
@Test
public void testSign() throws Exception {
System.err.println("私钥加密——公钥解密");
String inputStr = "sign";
byte[] data = inputStr.getBytes();
byte[] encodedData = CertificateCoder.encryptByPrivateKey(data,
keyStorePath, alias, password);
byte[] decodedData = CertificateCoder.decryptByPublicKey(encodedData,
certificatePath);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
System.err.println("私钥签名——公钥验证签名");
// 产生签名
String sign = CertificateCoder.sign(encodedData, keyStorePath, alias,
password);
System.err.println("签名:\r" + sign);
// 验证签名
boolean status = CertificateCoder.verify(encodedData, sign,
certificatePath);
System.err.println("状态:\r" + status);
assertTrue(status);
}
@Test
public void testHttps() throws Exception {
URL url = new URL("https://www.zlex.org/examples/");
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
CertificateCoder.configSSLSocketFactory(conn, password, keyStorePath,
keyStorePath);
InputStream is = conn.getInputStream();
int length = conn.getContentLength();
DataInputStream dis = new DataInputStream(is);
byte[] data = new byte[length];
dis.readFully(data);
dis.close();
conn.disconnect();
System.err.println(new String(data));
}
}
再次执行，验证通过！
由此，我们了基于SSL协议的认证过程。测试类的testHttps方法模拟了一次浏览器的HTTPS访问。
Java加密技术（十一）——双向认证
博客分类：
Java／Security
opensslpemcaPKCS#7PKCS#10
对于双向认证，做一个简单的描述。
服务器端下发证书，客户端接受证书。证书带有公钥信息，用于验证服务器端、对数据加密/解密，起到OSI五类服务的认证（鉴别）服务和保密性服务。
这只是单向认证，为什么？因为客户端可以验证服务器端，但服务器端不能验证客户端！
如果客户端也有这样一个证书，服务器端也就能够验证客户端，这就是双向认证了！
换言之，当你用银行的“U盾”之类的U盘与银行账户交互时，在你验证银行服务器的同时，服务器也在验证你！这种双重验证，正是网银系统的安全关键！
单向认证见Java加密技术（十)
双向认证需要一个CA机构签发这样的客户端、服务器端证书，首先需要CA机构构建一个根证书。keytool可以构建证书但不能构建我们需要的根证书，openssl则可以！
根证书签发客户端证书，根私钥签发服务器端证书！
我们直接使用linux下的openssl来完成CA，需要修改openssl.cnf文件，在ubuntu下的/etc/ssl/目录下，找到[ CA_default ]修改dir变量。
原文
引用
[ CA_default ]
#dir = ./demoCA # Where everything is kept
我们把c盘的ca目录作为CA认证的根目录，文件修改后如下所示：
引用
[ CA_default ]
dir = $ENV::HOME/ca # Where everything is kept
我们需要在用户目录下构建一个ca目录，以及子目录，如下所下：
ca
|__certs
|__newcerts
|__private
|__crl
执行如下操作：
Shell代码
#!/bin/bash
ca_path=ca
certs_path=$ca_path/certs
newcerts_path=$ca_path/newcerts
private_path=$ca_path/private
crl_path=$ca_path/crl
echo 移除CA根目录
rm -rf ca
echo 构建CA根目录
mkdir ca
echo 构建子目录
mkdir certs
mkdir newcerts
mkdir private
mkdir crl
#构建文件
touch $ca_path/index.txt
echo 01 > $ca_path/serial
echo
#构建随机数
openssl rand -out $private_path/.rand 1000
echo
echo 生成根证书私钥
openssl genrsa -des3 -out $private_path/ca.pem 2048
echo
echo 查看私钥信息
openssl rsa -noout -text -in $private_path/ca.pem
echo
echo 生成根证书请求
openssl req -new -key $private_path/ca.pem -out $certs_path/ca.csr -subj "/C=CN/ST=BJ/L=BJ/O=zlex/OU=zlex/CN=ca.zlex.org"
echo
echo 查看证书请求
openssl req -in $certs_path/ca.csr -text -noout
echo
echo 签发根证书
openssl ca -create_serial -out $certs_path/ca.crt -days 3650 -batch -keyfile $private_path/ca.pem -selfsign -extensions v3_ca -infiles $certs_path/ca.csr
#openssl x509 -req -sha1 -extensions v3_ca -signkey $private_path/ca.pem -in $certs_path/ca.csr -out $certs_path/ca.crt -days 3650
echo
echo 查看证书详情
openssl x509 -in $certs_path/ca.crt -text -noout
echo
echo 证书转换——根证书
openssl pkcs12 -export -clcerts -in $certs_path/ca.crt -inkey $private_path/ca.pem -out $certs_path/ca.p12
echo
echo 生成服务器端私钥
openssl genrsa -des3 -out $private_path/server.pem 1024
echo
echo 查看私钥信息
openssl rsa -noout -text -in $private_path/server.pem
echo
echo 生成服务器端证书请求
openssl req -new -key $private_path/server.pem -out $certs_path/server.csr -subj "/C=CN/ST=BJ/L=BJ/O=zlex/OU=zlex/CN=www.zlex.org"
echo
echo 查看证书请求
openssl req -in $certs_path/server.csr -text -noout
echo
echo 签发服务器端证书
openssl ca -in $certs_path/server.csr -out $certs_path/server.crt -cert $certs_path/ca.crt -keyfile $private_path/ca.pem -days 365 -notext
#openssl x509 -req -days 365 -sha1 -extensions v3_req -CA $certs_path/ca.crt -CAkey $private_path/ca.pem -CAserial $ca_path/serial -CAcreateserial -in $certs_path/server.csr -out $certs_path/server.crt
echo
echo 查看证书详情
openssl x509 -in $certs_path/server.crt -text -noout
echo
echo 证书转换——服务器端
openssl pkcs12 -export -clcerts -in $certs_path/server.crt -inkey $private_path/server.pem -out $certs_path/server.p12
echo
echo 生成客户端私钥
openssl genrsa -des3 -out $private_path/client.pem 1024
echo
echo 生成客户端私钥
openssl genrsa -des3 -out $private_path/client.pem 1024
echo
echo 查看私钥信息
openssl rsa -noout -text -in $private_path/client.pem
echo
echo 生成客户端证书请求
openssl req -new -key $private_path/client.pem -out $certs_path/client.csr -subj "/C=CN/ST=BJ/L=BJ/O=zlex/OU=zlex/CN=zlex"
echo
echo 查看证书请求
openssl req -in $certs_path/client.csr -text -noout
echo
echo 签发客户端证书
openssl ca -in $certs_path/client.csr -out $certs_path/client.crt -cert $certs_path/ca.crt -keyfile $private_path/ca.pem -days 365 -notext
#openssl x509 -req -days 365 -sha1 -extensions dir_sect -CA $certs_path/ca.crt -CAkey $private_path/ca.pem -CAserial $ca_path/serial -in $certs_path/client.csr -out $certs_path/client.crt
echo
echo 查看证书详情
openssl x509 -in $certs_path/client.crt -text -noout
echo
echo 证书转换——客户端
openssl pkcs12 -export -clcerts -in $certs_path/client.crt -inkey $private_path/client.pem -out $certs_path/client.p12
echo
echo 生成证书链PKCS#7
openssl crl2pkcs7 -nocrl -certfile $certs_path/server.crt -certfile $certs_path/ca.crt -certfile $certs_path/client.crt -out
form PEM -out $certs_path/zlex.p7b
echo
echo 查看证书链
openssl pkcs7 -in $certs_path/zlex.p7b -print_certs -noout
这个脚本就是最重要的结晶了！
执行结果，如下：
引用
生成根证书私钥
Generating RSA private key, 2048 bit long modulus
..................................+++
.............................................................+++
e is 65537 (0x10001)
Enter pass phrase for ca/private/ca.pem:
Verifying - Enter pass phrase for ca/private/ca.pem:
查看私钥信息
Enter pass phrase for ca/private/ca.pem:
Private-Key: (2048 bit)
modulus:
00:d4:18:ab:5f:ad:b7:d0:09:d4:68:63:b5:db:8a:
d1:a1:db:7e:f3:bb:bb:c2:be:a7:35:17:9e:bb:20:
d3:1f:ed:63:e7:7d:29:6d:d2:7c:60:06:47:53:a6:
23:b0:bd:94:65:3f:57:1e:00:51:f3:a1:9a:1b:83:
14:a5:53:72:86:21:a2:57:22:2f:6a:a9:46:50:8c:
f0:51:cf:e6:83:5b:23:dc:f9:ea:6c:2e:51:20:61:
d1:84:9f:28:e8:01:89:b5:cb:55:68:4a:11:b1:06:
56:31:21:16:c8:ac:2b:68:31:e1:de:12:d3:21:12:
83:36:4c:ca:a8:b5:7e:b9:a7:63:4e:8e:e0:79:0f:
0e:91:36:28:7c:dd:9a:e2:e0:98:8b:91:7f:09:7d:
20:bb:37:f2:ab:aa:f0:ef:ae:68:7e:db:ca:db:33:
84:48:5a:e3:ff:0b:08:0e:96:6d:01:c8:12:35:ec:
9f:31:55:7f:53:7e:bd:fb:c4:16:b8:1f:17:29:42:
0f:0e:04:57:14:18:fd:e5:d6:3f:40:04:cd:85:dd:
d3:eb:2f:9a:bf:3c:8a:60:01:88:2f:43:0a:8b:bb:
50:13:f8:cc:68:f9:10:eb:f9:7e:63:de:62:55:32:
a8:fe:ce:51:67:79:c9:a6:3b:a3:c9:d7:81:7c:48:
f3:d1
publicExponent: 65537 (0x10001)
privateExponent:
00:b0:8a:e4:43:1c:df:6e:bc:6f:e0:80:76:c4:8a:
75:5a:0b:d1:4d:61:cb:b5:1b:6b:24:c7:47:69:ad:
b5:ee:d2:73:a1:21:4e:95:ca:69:9a:a8:3f:40:c2:
7e:dc:c3:c0:bc:d2:0f:5a:ba:9b:7c:76:dc:46:e0:
42:14:27:34:a1:af:67:68:ad:dc:d8:24:94:91:c1:
ee:db:ba:78:be:87:e3:7f:31:4b:4e:c6:f2:e2:48:
69:d4:c1:82:94:33:8b:84:15:ff:3e:72:c0:ed:20:
40:28:5e:c9:8f:39:b8:5b:df:81:89:8f:13:cc:68:
93:6d:64:58:20:3c:0a:82:ce:ec:2f:9b:b2:9d:ca:
e7:19:22:98:29:6e:7c:4d:85:45:17:50:8f:5d:b1:
45:be:42:af:1a:7f:84:26:b4:5d:a6:22:8a:07:e8:
b3:b4:5a:59:45:20:b5:ef:1c:81:25:9e:73:74:04:
d6:57:30:2c:a7:25:50:7c:d7:87:73:b3:d0:c2:8b:
c9:02:8e:15:9e:40:41:a5:7a:a9:d8:85:fb:5b:9a:
59:83:bc:80:fa:74:e6:88:14:70:33:61:d7:f5:51:
47:8f:60:51:cb:c4:97:66:65:94:f0:ed:58:ca:80:
c1:89:e0:55:68:4c:69:21:0f:08:27:e0:87:11:df:
b7:bd
prime1:
00:f7:ff:b0:40:de:62:b6:a2:e5:d0:f5:fa:28:3d:
d3:30:30:89:8f:d1:ae:df:e9:09:ee:a0:b0:a5:a5:
a4:e5:93:97:7e:e6:0b:09:70:4c:62:99:5e:7d:45:
2f:fd:21:5a:31:d9:26:7f:39:5f:6e:eb:36:02:4e:
18:99:1b:38:13:99:f5:f3:a3:6b:93:83:67:fb:58:
67:d4:07:eb:e3:2f:31:b3:97:8f:f6:86:1f:15:08:
1a:4b:b5:a8:06:97:72:9c:74:ab:53:1f:ac:ee:fb:
59:03:39:a6:5c:a8:77:43:c0:2c:14:60:0e:71:3d:
70:b6:59:09:40:86:04:54:bf
prime2:
00:da:f0:73:2c:bd:52:a5:0d:9a:40:c4:34:fc:c9:
cf:0f:67:8a:02:01:ca:e7:b8:4e:57:da:0c:0d:b2:
f9:f3:f2:e4:4c:82:61:aa:04:2c:88:39:18:bd:86:
d6:dc:d0:e9:6c:c6:6f:d9:87:59:57:9b:1a:6b:c9:
56:c1:4d:33:ce:3e:15:b9:42:4e:e0:f8:14:91:c3:
fe:63:b2:13:29:99:a7:a6:13:cc:f8:9c:38:29:28:
dd:ed:d1:a3:7c:05:2c:26:a0:84:c6:09:9e:42:ef:
7b:5e:50:c7:57:e3:bc:02:93:0b:74:a1:b5:0b:6e:
23:18:8b:82:6f:ac:3c:0b:6f
exponent1:
7c:a1:23:4b:46:37:27:7f:6f:ac:f6:a0:93:ae:96:
3e:46:76:2b:2f:7e:09:8a:8c:72:3e:90:e7:7d:fa:
03:61:8b:a5:bb:27:da:c3:73:af:ad:51:9d:f4:b2:
2c:2c:a1:ae:21:69:c6:4f:e7:d4:cf:21:a2:40:ea:
fd:ae:7f:1c:e2:a7:86:9c:1e:c8:d0:25:e6:5b:44:
3a:7b:0c:a1:6c:2b:37:0c:b8:cd:74:13:94:b7:30:
b7:d1:7f:b2:68:53:b1:aa:b4:1a:9e:f5:82:58:10:
20:9d:cd:2c:0d:81:7a:2b:ce:3b:23:16:be:f3:d8:
7b:da:fc:da:4f:3f:47:f3
exponent2:
66:c9:5c:49:34:d9:08:04:4a:d6:fd:46:a3:27:5b:
be:af:ad:6b:23:cc:4e:dd:88:6a:56:44:32:6a:44:
4e:f3:49:9b:61:da:d8:26:fd:81:36:cd:16:ad:a7:
52:24:02:72:be:f6:e3:f9:57:48:79:d8:fd:a1:98:
c9:47:a5:7a:be:4b:14:9e:bc:c9:81:ae:a6:80:8d:
7d:e0:ac:7e:6b:54:f9:f3:71:d7:86:00:17:d2:c7:
de:4e:fd:a1:cc:0b:de:56:9d:ff:1b:a4:e1:67:ed:
53:6a:39:2c:5a:0e:7a:66:ee:89:e3:21:4c:2c:78:
ed:9d:11:af:bb:fc:b4:a1
coefficient:
00:b1:23:a8:cc:b1:5e:2e:38:09:0c:b5:df:2c:c6:
15:e8:08:48:45:b9:9d:ec:6f:27:45:5b:a7:bc:b6:
b1:ec:a5:39:b4:40:8e:bc:40:1f:b9:4d:14:2e:18:
fb:87:1e:20:91:34:58:e3:ac:c3:4a:dc:a8:2a:97:
ce:aa:8d:62:0e:91:af:1f:53:d6:37:55:1d:14:9c:
01:98:34:77:28:d7:cf:f7:a0:2d:73:40:48:5e:ed:
ae:9b:15:42:06:e6:a3:5a:2b:b0:bc:ee:7a:bb:52:
e6:28:19:c2:e5:de:6f:4d:fa:fb:69:81:7b:13:2b:
01:87:bf:bf:66:8f:24:a1:8f
生成根证书请求
Enter pass phrase for ca/private/ca.pem:
查看证书请求
Certificate Request:
Data:
Version: 0 (0x0)
Subject: C=CN, ST=BJ, L=BJ, O=zlex, OU=zlex, CN=ca.zlex.org
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (2048 bit)
Modulus (2048 bit):
00:d4:18:ab:5f:ad:b7:d0:09:d4:68:63:b5:db:8a:
d1:a1:db:7e:f3:bb:bb:c2:be:a7:35:17:9e:bb:20:
d3:1f:ed:63:e7:7d:29:6d:d2:7c:60:06:47:53:a6:
23:b0:bd:94:65:3f:57:1e:00:51:f3:a1:9a:1b:83:
14:a5:53:72:86:21:a2:57:22:2f:6a:a9:46:50:8c:
f0:51:cf:e6:83:5b:23:dc:f9:ea:6c:2e:51:20:61:
d1:84:9f:28:e8:01:89:b5:cb:55:68:4a:11:b1:06:
56:31:21:16:c8:ac:2b:68:31:e1:de:12:d3:21:12:
83:36:4c:ca:a8:b5:7e:b9:a7:63:4e:8e:e0:79:0f:
0e:91:36:28:7c:dd:9a:e2:e0:98:8b:91:7f:09:7d:
20:bb:37:f2:ab:aa:f0:ef:ae:68:7e:db:ca:db:33:
84:48:5a:e3:ff:0b:08:0e:96:6d:01:c8:12:35:ec:
9f:31:55:7f:53:7e:bd:fb:c4:16:b8:1f:17:29:42:
0f:0e:04:57:14:18:fd:e5:d6:3f:40:04:cd:85:dd:
d3:eb:2f:9a:bf:3c:8a:60:01:88:2f:43:0a:8b:bb:
50:13:f8:cc:68:f9:10:eb:f9:7e:63:de:62:55:32:
a8:fe:ce:51:67:79:c9:a6:3b:a3:c9:d7:81:7c:48:
f3:d1
Exponent: 65537 (0x10001)
Attributes:
a0:00
Signature Algorithm: sha1WithRSAEncryption
af:91:f8:56:6f:db:de:cb:df:2c:87:93:99:ac:4b:51:12:a2:
c1:2b:09:d2:58:7c:e1:07:5c:53:9f:f3:e1:b6:3a:e9:08:e7:
65:89:3b:0a:01:83:24:a3:b5:74:65:50:a5:77:bc:30:1b:7d:
80:8b:4c:92:ec:81:91:6e:b7:8f:05:e7:1d:b2:89:84:18:8c:
5f:66:be:19:15:ba:ba:c3:f7:0d:c3:7d:7a:11:47:17:e5:cf:
87:69:2e:15:91:d7:db:9d:8e:c9:0f:81:71:fa:00:93:33:2c:
99:e1:be:76:06:f1:8a:e6:8b:1d:9b:07:70:f0:f2:44:91:ed:
a2:ed:28:91:5f:6a:8a:f3:cf:ab:0d:b3:05:30:72:19:86:ae:
c6:2d:a4:22:9f:21:cf:55:0c:b7:79:44:01:6e:36:43:a5:dc:
a0:ea:46:2a:b0:9d:b3:53:4a:57:fc:72:1b:4c:52:cc:a3:39:
d6:49:d6:f4:8c:e2:bf:5a:a6:6e:69:7c:f2:bc:7b:02:b7:f5:
91:7f:94:2b:8c:58:0f:aa:a3:72:93:46:fe:08:29:08:51:eb:
c6:a0:4e:7a:e1:bd:c6:0b:11:9d:63:96:af:22:ee:7b:79:84:
cd:e7:f0:23:17:e7:9f:a2:73:c5:15:e1:f5:a1:af:8d:58:f5:
e0:eb:57:fd
签发根证书
Using configuration from /etc/pki/tls/openssl.cnf
Enter pass phrase for ca/private/ca.pem:
Check that the request matches the signature
Signature ok
Certificate Details:
Serial Number: 1 (0x1)
Validity
Not Before: Jul 24 08:15:59 2012 GMT
Not After : Jul 22 08:15:59 2022 GMT
Subject:
countryName = CN
stateOrProvinceName = BJ
organizationName = zlex
organizationalUnitName = zlex
commonName = ca.zlex.org
X509v3 extensions:
X509v3 Subject Key Identifier:
7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
X509v3 Authority Key Identifier:
keyid:7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
DirName:/C=CN/ST=BJ/O=zlex/OU=zlex/CN=ca.zlex.org
serial:01
X509v3 Basic Constraints:
CA:TRUE
Certificate is to be certified until Jul 22 08:15:59 2022 GMT (3650 days)
Write out database with 1 new entries
Data Base Updated
查看证书详情
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 1 (0x1)
Signature Algorithm: sha1WithRSAEncryption
Issuer: C=CN, ST=BJ, O=zlex, OU=zlex, CN=ca.zlex.org
Validity
Not Before: Jul 24 08:15:59 2012 GMT
Not After : Jul 22 08:15:59 2022 GMT
Subject: C=CN, ST=BJ, O=zlex, OU=zlex, CN=ca.zlex.org
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (2048 bit)
Modulus (2048 bit):
00:d4:18:ab:5f:ad:b7:d0:09:d4:68:63:b5:db:8a:
d1:a1:db:7e:f3:bb:bb:c2:be:a7:35:17:9e:bb:20:
d3:1f:ed:63:e7:7d:29:6d:d2:7c:60:06:47:53:a6:
23:b0:bd:94:65:3f:57:1e:00:51:f3:a1:9a:1b:83:
14:a5:53:72:86:21:a2:57:22:2f:6a:a9:46:50:8c:
f0:51:cf:e6:83:5b:23:dc:f9:ea:6c:2e:51:20:61:
d1:84:9f:28:e8:01:89:b5:cb:55:68:4a:11:b1:06:
56:31:21:16:c8:ac:2b:68:31:e1:de:12:d3:21:12:
83:36:4c:ca:a8:b5:7e:b9:a7:63:4e:8e:e0:79:0f:
0e:91:36:28:7c:dd:9a:e2:e0:98:8b:91:7f:09:7d:
20:bb:37:f2:ab:aa:f0:ef:ae:68:7e:db:ca:db:33:
84:48:5a:e3:ff:0b:08:0e:96:6d:01:c8:12:35:ec:
9f:31:55:7f:53:7e:bd:fb:c4:16:b8:1f:17:29:42:
0f:0e:04:57:14:18:fd:e5:d6:3f:40:04:cd:85:dd:
d3:eb:2f:9a:bf:3c:8a:60:01:88:2f:43:0a:8b:bb:
50:13:f8:cc:68:f9:10:eb:f9:7e:63:de:62:55:32:
a8:fe:ce:51:67:79:c9:a6:3b:a3:c9:d7:81:7c:48:
f3:d1
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Key Identifier:
7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
X509v3 Authority Key Identifier:
keyid:7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
DirName:/C=CN/ST=BJ/O=zlex/OU=zlex/CN=ca.zlex.org
serial:01
X509v3 Basic Constraints:
CA:TRUE
Signature Algorithm: sha1WithRSAEncryption
8a:99:b8:17:fc:64:7b:88:9c:1b:91:23:60:f4:5c:51:16:9a:
9f:42:b4:d3:a5:bb:79:ca:78:e3:fc:a7:af:66:da:ec:5a:8c:
81:c1:aa:04:32:a9:59:e0:d6:6a:f2:37:38:97:70:a5:27:5d:
14:73:2e:2d:73:78:1d:37:2c:04:f7:c3:99:9d:be:0c:dd:2a:
27:2c:0f:6e:95:96:01:c7:4c:99:f7:49:69:f9:ba:cb:62:b8:
c6:43:6c:5b:b5:cd:25:42:a7:fb:81:27:bc:d8:e4:95:26:7d:
da:50:f8:b8:be:0a:3d:54:35:d0:9d:22:e7:f0:f0:4c:7d:b4:
57:2e:98:91:1a:1d:49:e5:8e:48:f6:2b:54:7e:04:fc:1c:e3:
52:f7:04:f6:9b:bb:84:25:31:f7:31:6e:7f:fa:4c:e4:15:a2:
86:0a:1a:56:8c:ad:07:49:fb:bc:28:27:a3:95:ba:eb:b3:28:
db:11:78:ef:84:fc:3c:16:df:58:39:2e:14:8d:89:fe:7a:d2:
24:eb:a7:66:11:8c:88:55:40:e1:c3:3b:95:b2:bc:af:36:0e:
92:a8:cd:62:d5:57:9c:11:1b:f6:a1:36:5f:25:6c:16:c5:e2:
68:19:e7:12:3d:4b:07:24:81:e6:71:f9:59:c5:f9:1c:62:6d:
b3:24:b9:8a
证书转换——根证书
Enter pass phrase for ca/private/ca.pem:
Enter Export Password:
Verifying - Enter Export Password:
生成服务器端私钥
Generating RSA private key, 1024 bit long modulus
......................................................++++++
................++++++
e is 65537 (0x10001)
Enter pass phrase for ca/private/server.pem:
Verifying - Enter pass phrase for ca/private/server.pem:
查看私钥信息
Enter pass phrase for ca/private/server.pem:
Private-Key: (1024 bit)
modulus:
00:d8:f9:bd:0a:a8:d3:97:98:b2:22:af:29:a9:31:
76:50:52:77:c8:3b:7c:91:75:db:b3:63:88:cc:00:
be:1a:6c:e6:80:23:90:37:5f:1a:d3:80:f2:7f:b5:
77:01:ec:85:3e:4e:c0:af:0d:77:c0:a5:8b:bc:c3:
fe:70:91:66:17:a4:ec:23:08:5b:e3:df:a3:40:2f:
e6:83:bd:3f:d0:62:9c:c0:36:ad:e7:cb:13:e8:34:
d7:6a:66:57:f5:bb:94:2f:7c:d5:27:7b:ee:e6:4f:
fc:ff:c1:a4:01:96:d6:a0:b8:46:1d:93:02:a6:c5:
00:bd:d9:e9:4e:2d:87:d5:95
publicExponent: 65537 (0x10001)
privateExponent:
4d:da:15:fd:6c:24:37:c1:bf:30:f8:be:af:09:a3:
55:20:b1:ff:f3:70:37:d5:1d:16:99:c1:2c:c9:9b:
6c:69:e4:ae:d7:93:d8:7a:54:6a:cd:5a:b5:7e:0c:
0c:71:ac:41:76:0a:67:05:23:11:c9:94:81:0f:a6:
0d:07:ee:a4:26:0e:20:ff:36:6c:f7:2d:fa:8e:39:
85:f8:b8:1a:e0:be:26:f8:24:3c:d4:d0:a0:89:9c:
48:15:d9:28:de:51:dd:14:3f:ca:c9:63:ed:5d:e4:
50:b0:06:5e:1b:f8:99:b4:49:f6:d6:cb:60:8a:7b:
fa:f8:6e:86:44:55:e5:45
prime1:
00:ef:cc:38:ab:e6:98:71:09:32:5c:69:b3:e0:59:
9d:d7:7a:f9:e3:b9:cd:a8:84:74:1a:91:2a:db:2c:
96:40:5a:28:0b:99:6c:da:fa:ca:83:54:e0:59:06:
84:df:55:9a:04:9c:1c:6b:54:52:d5:31:d7:f9:0e:
9a:13:b0:ed:03
prime2:
00:e7:a2:c3:03:55:d7:54:7c:3a:38:40:f1:ac:9a:
e8:dd:3a:5c:24:a6:78:34:c4:ce:24:c8:31:de:5a:
0e:df:09:df:7c:ad:36:14:e0:be:6d:2c:58:89:c6:
7e:ec:51:82:68:81:91:ed:b5:04:ff:c0:61:8e:aa:
5b:ee:6b:f3:87
exponent1:
2a:22:0c:d7:0f:56:3b:8e:2d:1e:15:a8:78:43:e6:
ba:e4:ad:a1:78:95:0d:05:f0:cc:76:33:3c:7d:52:
0d:0e:8a:38:b7:85:6b:d8:62:da:be:80:08:c4:5f:
76:4a:39:1c:94:3d:5e:12:5b:d7:7f:c1:7d:ce:35:
fe:3d:b8:f7
exponent2:
00:94:0b:ec:36:52:84:19:04:79:35:81:14:b5:ec:
20:8f:5d:00:8d:90:34:5e:0d:b7:6f:bc:e0:5a:ac:
16:bb:29:15:45:1b:73:e8:6e:28:67:a0:a3:4a:13:
ab:05:a1:a7:06:e2:61:81:9b:64:01:8e:55:0c:19:
08:3e:df:92:3b
coefficient:
00:8e:4e:ee:04:55:cc:4f:0f:c0:02:a4:9d:08:a8:
4b:ec:72:7c:86:27:a9:0a:5e:1c:94:65:9e:c6:8a:
6a:5c:9b:76:5d:c0:ae:f8:36:61:15:3b:67:fb:15:
b3:cf:f4:2c:9b:56:66:13:89:89:69:01:d9:6e:b0:
f7:02:d4:06:c9
生成服务器端证书请求
Enter pass phrase for ca/private/server.pem:
查看证书请求
Certificate Request:
Data:
Version: 0 (0x0)
Subject: C=CN, ST=BJ, L=BJ, O=zlex, OU=zlex, CN=www.zlex.org
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (1024 bit)
Modulus (1024 bit):
00:d8:f9:bd:0a:a8:d3:97:98:b2:22:af:29:a9:31:
76:50:52:77:c8:3b:7c:91:75:db:b3:63:88:cc:00:
be:1a:6c:e6:80:23:90:37:5f:1a:d3:80:f2:7f:b5:
77:01:ec:85:3e:4e:c0:af:0d:77:c0:a5:8b:bc:c3:
fe:70:91:66:17:a4:ec:23:08:5b:e3:df:a3:40:2f:
e6:83:bd:3f:d0:62:9c:c0:36:ad:e7:cb:13:e8:34:
d7:6a:66:57:f5:bb:94:2f:7c:d5:27:7b:ee:e6:4f:
fc:ff:c1:a4:01:96:d6:a0:b8:46:1d:93:02:a6:c5:
00:bd:d9:e9:4e:2d:87:d5:95
Exponent: 65537 (0x10001)
Attributes:
a0:00
Signature Algorithm: sha1WithRSAEncryption
2b:e9:b9:0b:e0:94:56:95:dd:59:1e:19:16:e0:f9:73:db:50:
63:d3:d4:4d:5c:9b:98:9f:a7:6d:9b:4d:ae:67:52:18:e1:42:
b0:66:7c:75:6a:db:98:bc:e6:47:08:aa:55:ca:ce:35:5c:5a:
60:8b:7b:c8:f0:10:8a:bd:5f:d7:c8:b8:48:03:18:7e:68:6e:
69:35:9c:c8:b0:c8:65:43:43:25:35:d7:d2:70:45:55:ab:78:
51:4d:22:c3:68:b2:97:b5:3c:86:e8:2b:43:de:5d:e4:b0:b5:
0e:eb:84:9d:42:81:ee:e0:0a:48:40:6a:93:a4:bd:3a:45:6f:
20:24
签发服务器端证书
Using configuration from /etc/pki/tls/openssl.cnf
Enter pass phrase for ca/private/ca.pem:
Check that the request matches the signature
Signature ok
Certificate Details:
Serial Number: 2 (0x2)
Validity
Not Before: Jul 24 08:16:15 2012 GMT
Not After : Jul 24 08:16:15 2013 GMT
Subject:
countryName = CN
stateOrProvinceName = BJ
organizationName = zlex
organizationalUnitName = zlex
commonName = www.zlex.org
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
CF:79:10:96:42:84:0C:51:DE:6E:DB:3C:5B:08:F1:E1:EB:0C:26:B9
X509v3 Authority Key Identifier:
keyid:7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
Certificate is to be certified until Jul 24 08:16:15 2013 GMT (365 days)
Sign the certificate? [y/n]:y
1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated
查看证书详情
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 2 (0x2)
Signature Algorithm: sha1WithRSAEncryption
Issuer: C=CN, ST=BJ, O=zlex, OU=zlex, CN=ca.zlex.org
Validity
Not Before: Jul 24 08:16:15 2012 GMT
Not After : Jul 24 08:16:15 2013 GMT
Subject: C=CN, ST=BJ, O=zlex, OU=zlex, CN=www.zlex.org
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (1024 bit)
Modulus (1024 bit):
00:d8:f9:bd:0a:a8:d3:97:98:b2:22:af:29:a9:31:
76:50:52:77:c8:3b:7c:91:75:db:b3:63:88:cc:00:
be:1a:6c:e6:80:23:90:37:5f:1a:d3:80:f2:7f:b5:
77:01:ec:85:3e:4e:c0:af:0d:77:c0:a5:8b:bc:c3:
fe:70:91:66:17:a4:ec:23:08:5b:e3:df:a3:40:2f:
e6:83:bd:3f:d0:62:9c:c0:36:ad:e7:cb:13:e8:34:
d7:6a:66:57:f5:bb:94:2f:7c:d5:27:7b:ee:e6:4f:
fc:ff:c1:a4:01:96:d6:a0:b8:46:1d:93:02:a6:c5:
00:bd:d9:e9:4e:2d:87:d5:95
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
CF:79:10:96:42:84:0C:51:DE:6E:DB:3C:5B:08:F1:E1:EB:0C:26:B9
X509v3 Authority Key Identifier:
keyid:7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
Signature Algorithm: sha1WithRSAEncryption
3d:85:0a:f5:a6:8e:f5:13:1b:fc:74:b6:50:8f:fe:0c:e6:32:
0e:0c:5a:0a:75:2d:e8:15:39:2f:93:46:29:c6:cc:27:5a:36:
a0:93:f8:bc:38:d5:2d:55:b9:19:de:81:6f:b6:5f:1f:07:65:
81:c5:12:4e:ea:3e:09:d0:d5:b8:66:c1:cd:4d:5d:51:19:a1:
7f:7b:cb:dc:bf:b0:be:3e:f8:8b:74:d3:31:a9:95:a3:ef:25:
a3:1e:98:65:0f:d4:40:51:ef:42:02:72:f0:59:26:8a:e7:d6:
ca:34:ad:fb:3d:a8:e7:05:93:a6:78:bd:b5:90:51:83:06:2b:
95:db:01:0c:89:9f:74:a4:32:89:c5:15:c6:ec:e2:61:10:29:
70:da:c5:ea:d6:9c:be:c3:4c:a1:42:6a:26:2f:23:7c:90:51:
8f:51:ee:49:c9:6b:9c:0c:15:a2:d3:dc:90:19:db:4d:d1:ad:
ca:06:d1:e1:60:20:18:b1:6d:0b:17:f7:06:e6:e8:d1:b0:0c:
6d:55:16:f1:63:54:da:c2:3f:6c:e5:99:68:7a:a0:fa:29:5c:
dc:cf:34:90:fb:91:7b:e0:5d:bb:a0:9d:91:f3:17:bd:0b:5a:
69:d7:0c:24:75:ca:b2:08:da:bf:67:35:ce:01:d0:4e:45:81:
97:bd:fb:87
证书转换——服务器端
Enter pass phrase for ca/private/server.pem:
Enter Export Password:
Verifying - Enter Export Password:
生成客户端私钥
Generating RSA private key, 1024 bit long modulus
..++++++
...........++++++
e is 65537 (0x10001)
Enter pass phrase for ca/private/client.pem:
Verifying - Enter pass phrase for ca/private/client.pem:
查看私钥信息
Enter pass phrase for ca/private/client.pem:
Private-Key: (1024 bit)
modulus:
00:b4:e9:7d:3d:6b:8b:07:94:7d:47:51:56:3e:0e:
92:2f:87:8c:60:0f:b8:cb:eb:90:6d:13:76:51:75:
e4:3e:b7:6e:1f:f0:63:5b:f7:ba:51:c0:04:1e:f1:
d0:ef:58:4a:35:47:4a:1a:11:72:fc:e9:10:82:ec:
3e:0d:ef:7d:17:a0:5e:93:b4:01:8f:a5:27:3c:3e:
a9:26:f0:00:ba:ca:24:98:92:51:3e:4b:d0:81:a7:
fc:14:e2:98:f5:27:f2:51:4c:a8:ae:b4:5f:e7:cc:
70:7e:23:57:92:6a:cf:d4:1d:6f:b3:52:8a:4a:1a:
1b:65:f0:4d:1c:0b:1f:50:eb
publicExponent: 65537 (0x10001)
privateExponent:
3a:35:b2:8d:73:af:fd:55:62:e5:f2:9e:dc:42:d5:
f8:a3:15:a0:c7:0e:3f:d6:e0:d6:a7:df:77:20:86:
bb:43:4c:14:cc:c5:3b:8f:3f:0d:14:ca:7e:a6:72:
02:c1:16:c7:83:d3:ad:05:96:49:18:38:ae:d7:92:
b3:eb:2e:05:43:d6:3d:04:3c:0b:fc:15:79:c5:85:
10:ed:21:6e:30:73:0b:a6:4f:9a:fe:db:4a:98:bc:
ec:03:7b:7f:e6:16:2f:a5:f3:5e:0d:cf:ce:eb:4a:
3e:c5:b9:7f:fc:4c:60:9e:0e:d4:aa:91:5a:46:f7:
b3:77:fc:0b:1b:62:70:b9
prime1:
00:ef:6d:7f:92:6a:af:21:59:ed:fe:49:a8:7c:4a:
1d:4d:7c:f9:38:bf:e7:dc:42:41:e1:33:f9:e1:c7:
74:45:2e:1c:e4:40:8d:5f:1a:ac:11:9e:a4:6c:1d:
00:6d:4e:aa:4d:58:e9:92:84:ac:d9:29:67:e0:79:
a8:a3:15:e3:2d
prime2:
00:c1:6f:21:c5:62:48:78:3a:0f:25:98:00:46:d6:
c2:2d:0f:96:fb:20:4b:f4:03:81:71:3f:6f:30:c0:
f3:a6:e6:f4:00:a4:fa:0b:97:e6:2a:21:8c:cb:c1:
28:eb:5f:f6:01:62:85:9a:37:98:e7:53:a4:8b:3f:
bd:77:eb:f3:77
exponent1:
00:e3:71:e0:9b:85:af:22:7e:9c:a0:50:f6:b6:43:
6d:bc:bb:b8:c0:d9:44:f8:2f:15:08:4b:68:d8:bb:
b1:cf:3a:34:05:fc:f0:8f:64:f6:0a:b2:ea:bd:2d:
7b:c7:5a:d0:5b:33:d8:86:f0:74:86:c3:57:c3:9d:
ae:be:66:3f:6d
exponent2:
00:82:4a:c9:04:9b:5f:15:1c:86:77:5c:1b:53:9b:
f4:cf:45:60:fd:66:93:c2:99:59:e7:5e:43:17:23:
e0:fa:db:36:1f:f9:00:34:2e:ec:ea:14:0f:32:6f:
b9:90:51:e2:f2:ab:da:32:36:a0:d7:b0:8f:74:fc:
4a:33:2c:cb:a1
coefficient:
51:c1:7e:d7:0d:98:86:cb:ca:41:ea:aa:54:6c:00:
49:c3:18:12:c4:5b:75:fe:0d:0c:e2:2f:0f:93:8e:
8e:01:c5:9d:ff:40:2b:20:08:24:7f:a5:f2:da:67:
96:5e:e6:7e:1e:52:32:2f:88:ef:df:20:6a:75:ec:
28:cd:fa:a0
生成客户端证书请求
Enter pass phrase for ca/private/client.pem:
查看证书请求
Certificate Request:
Data:
Version: 0 (0x0)
Subject: C=CN, ST=BJ, L=BJ, O=zlex, OU=zlex, CN=zlex
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (1024 bit)
Modulus (1024 bit):
00:b4:e9:7d:3d:6b:8b:07:94:7d:47:51:56:3e:0e:
92:2f:87:8c:60:0f:b8:cb:eb:90:6d:13:76:51:75:
e4:3e:b7:6e:1f:f0:63:5b:f7:ba:51:c0:04:1e:f1:
d0:ef:58:4a:35:47:4a:1a:11:72:fc:e9:10:82:ec:
3e:0d:ef:7d:17:a0:5e:93:b4:01:8f:a5:27:3c:3e:
a9:26:f0:00:ba:ca:24:98:92:51:3e:4b:d0:81:a7:
fc:14:e2:98:f5:27:f2:51:4c:a8:ae:b4:5f:e7:cc:
70:7e:23:57:92:6a:cf:d4:1d:6f:b3:52:8a:4a:1a:
1b:65:f0:4d:1c:0b:1f:50:eb
Exponent: 65537 (0x10001)
Attributes:
a0:00
Signature Algorithm: sha1WithRSAEncryption
91:5b:b2:2e:b3:54:14:92:7a:44:c0:59:11:0f:fe:08:50:33:
09:0f:73:d3:9d:15:43:07:66:4a:9e:7c:de:12:4d:bc:b6:3a:
7a:6b:36:40:3a:4b:ea:db:f7:2e:a1:de:ce:4f:a6:98:14:3b:
c0:f6:3d:fe:db:82:fa:c7:f1:1e:9a:6c:2b:ff:e6:a4:91:b1:
ab:20:44:91:a8:d9:1b:13:8f:9e:24:68:16:f3:c1:66:7b:3b:
29:b5:61:3d:be:88:00:d8:0a:1c:63:f0:25:6c:33:7d:86:80:
54:d5:75:db:6f:7e:9c:52:4c:70:0d:5a:88:ae:b5:1a:12:41:
e4:47
签发客户端证书
Using configuration from /etc/pki/tls/openssl.cnf
Enter pass phrase for ca/private/ca.pem:
Check that the request matches the signature
Signature ok
Certificate Details:
Serial Number: 3 (0x3)
Validity
Not Before: Jul 24 08:16:35 2012 GMT
Not After : Jul 24 08:16:35 2013 GMT
Subject:
countryName = CN
stateOrProvinceName = BJ
organizationName = zlex
organizationalUnitName = zlex
commonName = zlex
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
FD:85:1C:BA:E0:C4:81:F5:F4:92:F1:FC:8A:59:77:33:60:6F:47:F7
X509v3 Authority Key Identifier:
keyid:7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
Certificate is to be certified until Jul 24 08:16:35 2013 GMT (365 days)
Sign the certificate? [y/n]:y
1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated
查看证书详情
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 3 (0x3)
Signature Algorithm: sha1WithRSAEncryption
Issuer: C=CN, ST=BJ, O=zlex, OU=zlex, CN=ca.zlex.org
Validity
Not Before: Jul 24 08:16:35 2012 GMT
Not After : Jul 24 08:16:35 2013 GMT
Subject: C=CN, ST=BJ, O=zlex, OU=zlex, CN=zlex
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (1024 bit)
Modulus (1024 bit):
00:b4:e9:7d:3d:6b:8b:07:94:7d:47:51:56:3e:0e:
92:2f:87:8c:60:0f:b8:cb:eb:90:6d:13:76:51:75:
e4:3e:b7:6e:1f:f0:63:5b:f7:ba:51:c0:04:1e:f1:
d0:ef:58:4a:35:47:4a:1a:11:72:fc:e9:10:82:ec:
3e:0d:ef:7d:17:a0:5e:93:b4:01:8f:a5:27:3c:3e:
a9:26:f0:00:ba:ca:24:98:92:51:3e:4b:d0:81:a7:
fc:14:e2:98:f5:27:f2:51:4c:a8:ae:b4:5f:e7:cc:
70:7e:23:57:92:6a:cf:d4:1d:6f:b3:52:8a:4a:1a:
1b:65:f0:4d:1c:0b:1f:50:eb
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
FD:85:1C:BA:E0:C4:81:F5:F4:92:F1:FC:8A:59:77:33:60:6F:47:F7
X509v3 Authority Key Identifier:
keyid:7E:C9:9A:37:37:66:AC:79:41:63:F0:61:48:CD:24:39:2F:C2:0E:E9
Signature Algorithm: sha1WithRSAEncryption
b2:31:c0:15:a1:8f:2c:6d:61:0c:4f:6e:c1:fe:7a:88:e0:60:
ce:6d:43:b4:29:d8:4d:83:4d:ea:ce:f0:8e:c1:c7:3b:bd:30:
cb:92:71:11:7d:19:04:11:58:25:5d:1b:ed:6f:22:13:91:ea:
13:7f:0e:99:00:ec:fb:b3:a5:e2:b9:ea:ea:bb:35:09:3b:ca:
f5:49:ac:a1:d3:d5:ae:ff:ce:11:a9:2f:53:74:88:24:9f:f8:
b2:bc:02:4d:1a:bb:c1:53:3e:6e:31:52:4d:ac:f8:14:bd:b1:
0d:31:1d:aa:94:43:38:5e:fb:c2:26:3e:43:ba:25:3b:23:27:
a8:7d:5d:3d:f9:97:28:71:51:1d:a4:56:44:b4:f6:51:4a:2b:
8b:47:d3:10:49:04:cd:c3:58:62:75:bc:c7:6a:4c:d5:9a:a8:
e9:9c:23:ec:f8:26:e5:de:43:4e:f2:8d:c2:75:40:70:3f:03:
0f:74:78:7a:bc:ca:6f:90:a0:3e:3a:d2:92:16:d5:ca:af:93:
28:1f:24:3a:7e:2c:b9:db:87:10:68:e0:c9:6c:0b:5d:9f:15:
be:bc:13:22:af:7b:8f:e9:14:51:04:65:7a:69:18:c2:ca:4f:
cb:e5:4c:62:41:88:b1:ee:ac:43:14:34:6d:58:af:52:b1:25:
76:f3:0e:8f
证书转换——客户端
Enter pass phrase for ca/private/client.pem:
Enter Export Password:
Verifying - Enter Export Password:
生成证书链
查看证书链
subject=/C=CN/ST=BJ/O=zlex/OU=zlex/CN=www.zlex.org
issuer=/C=CN/ST=BJ/O=zlex/OU=zlex/CN=ca.zlex.org
subject=/C=CN/ST=BJ/O=zlex/OU=zlex/CN=ca.zlex.org
issuer=/C=CN/ST=BJ/O=zlex/OU=zlex/CN=ca.zlex.org
subject=/C=CN/ST=BJ/O=zlex/OU=zlex/CN=zlex
issuer=/C=CN/ST=BJ/O=zlex/OU=zlex/CN=ca.zlex.org
来看一下这3套证书，如下两幅图所示：
CA证书
服务器证书
客户证书
证书链
"ca.zlex.org"证书充当了CA根证书，"www.zlex.org"充当服务器端证书，"zlex"充当客户端证书
使用keytool将其导入本地密钥库
导入CA证书
Shell代码
keytool -import -v -trustcacerts -alias ca.zlex.org -file ca.crt -storepass 123456 -keystore ca.keystore
控制台输出
引用
所有者:CN=ca.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
签发人:CN=ca.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
序列号:989b27ef00e53a99
有效期: Wed Jul 18 17:53:51 CST 2012 至Sat Jul 16 17:53:51 CST 2022
证书指纹:
MD5:BA:14:1F:89:3A:1E:63:7B:20:AC:5A:50:FE:65:7E:16
SHA1:E0:A4:0E:6F:09:7E:01:27:C0:FC:62:26:1A:0C:C6:7B:BF:6A:18:B3
签名算法名称:SHA1withRSA
版本: 1
信任这个认证？ [否]： y
认证已添加至keystore中
[正在存储 ca.keystore]
导入服务器端证书
Shell代码
keytool -import -v -trustcacerts -alias www.zlex.org -file server.crt -storepass 123456 -keystore server.keystore
控制台输出
引用
所有者:CN=www.zlex.org, OU=zlex, O=zlex, ST=BJ, C=CN
签发人:CN=ca.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
序列号:1
有效期: Wed Jul 18 17:54:25 CST 2012 至Thu Jul 18 17:54:25 CST 2013
证书指纹:
MD5:7E:5E:66:56:AF:E7:F5:72:0F:FC:95:85:97:07:4E:2A
SHA1:B1:E7:E8:AC:AB:C9:72:69:D8:E2:25:D5:16:A9:AF:C1:B7:4A:74:5D
签名算法名称:SHA1withRSA
版本: 3
扩展:
#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: A8 49 2F E2 2D 15 9F 42 BD 76 2B 20 D3 EB A5 EE .I/.-..B.v+ ....
0010: 31 CA E7 63 1..c
]
]
#2: ObjectId: 2.5.29.19 Criticality=false
BasicConstraints:[
CA:false
PathLen: undefined
]
#3: ObjectId: 2.5.29.35 Criticality=false
AuthorityKeyIdentifier [
[CN=ca.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN]
SerialNumber: [ 989b27ef 00e53a99]
]
#4: ObjectId: 2.16.840.1.113730.1.13 Criticality=false
信任这个认证？ [否]： y
认证已添加至keystore中
[正在存储 server.keystore]
导入客户端证书
Shell代码
keytool -import -v -trustcacerts -alias client -file client.crt -storepass 123456 -keystore client.keystore
以下是输出内容：
引用
所有者:CN=zlex, OU=zlex, O=zlex, ST=BJ, C=CN
签发人:CN=ca.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN
序列号:2
有效期: Wed Jul 18 17:54:49 CST 2012 至Thu Jul 18 17:54:49 CST 2013
证书指纹:
MD5:81:16:ED:92:9E:17:DB:E3:BE:DE:CD:8D:F8:E0:EE:C4
SHA1:C0:E0:42:81:79:70:4C:F8:44:D4:76:2D:C5:62:7C:67:B2:41:B3:AC
签名算法名称:SHA1withRSA
版本: 3
扩展:
#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: 0C 2C 25 86 C6 8D 04 88 F5 63 19 DC 09 B1 3C 5D .,%......c....<]
0010: 59 C9 72 1B Y.r.
]
]
#2: ObjectId: 2.5.29.19 Criticality=false
BasicConstraints:[
CA:false
PathLen: undefined
]
#3: ObjectId: 2.5.29.35 Criticality=false
AuthorityKeyIdentifier [
[CN=ca.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN]
SerialNumber: [ 989b27ef 00e53a99]
]
#4: ObjectId: 2.16.840.1.113730.1.13 Criticality=false
信任这个认证？ [否]： y
认证已添加至keystore中
[正在存储 client.keystore]
PS 吊销证书：
Shell代码
echo 吊销客户端证书
openssl ca -revoke $certs_path/client.crt -cert $certs_path/ca.crt -keyfile $private_path/ca.pem
引用
Using configuration from /etc/pki/tls/openssl.cnf
Enter pass phrase for private/ca.pem:
Revoking Certificate 02.
Data Base Updated
生成证书吊销列表文件（CRL）
执行命令如下：
Shell代码
openssl ca -gencrl -out ca.crl -config "$HOME/testca/conf/testca.conf"
-crldays和-crlhours参数,说明下一个吊销列表将在多少天后（或多少小时候）发布。
可以用以下命令检查testca.crl的内容：
Shell代码
openssl crl -in testca.crl -text -noout
引用
http://blog.csdn.net/gothicane/articles/2865818.aspx
http://www.5dlinux.com/article/7/2009/linux_35291.html
http://www.tc.umn.edu/~brams006/selfsign_ubuntu.html
http://www.tc.umn.edu/~brams006/selfsign.html
http://zhouzhk.iteye.com/blog/136943
http://bbs.cfan.com.cn/thread-743287-1-1.html
http://www.iteye.com/problems/4072
http://blog.csdn.net/jasonhwang/archive/2008/04/26/2329589.aspx
http://blog.csdn.net/jasonhwang/archive/2008/04/29/2344768.aspx
Java加密技术（十二）——*.PFX(*.p12)&个人信息交换文件
博客分类：
Java／Security
pfxkeystorep12keytool
今天来点实际工作中的硬通货！
与计费系统打交道，少不了用到加密/解密实现。为了安全起见，通过非对称加密交换对称加密密钥更是不可或缺。那么需要通过什么载体传递非对称算法公钥/私钥信息？数字证书是公钥的载体，而密钥库可以包含公钥、私钥信息。
JKS和PKCS#12都是比较常用的两种密钥库格式/标准。对于前者，搞Java开发，尤其是接触过HTTPS平台的朋友，并不陌生。JKS文件（通常为*.jks或*.keystore，扩展名无关）可以通过Java原生工具——KeyTool生成；而后者PKCS#12文件（通常为*.p12或*.pfx，意味个人信息交换文件），则是通过更为常用的OpenSSL工具产生。
当然，这两者之间是可以通过导入/导出的方式进行转换的！当然，这种转换需要通过KeyTool工具进行！
回归正题，计费同事遇到一个难题：合作方交给他们一个*.pfx文件，需要他们从中提取密钥，然后进行加密交互。其实，通过Java直接操作密钥库文件（或个人信息交换文件）对于一般Java开发人员来说，这都是个冷门。不接触数字安全，根本不知所云。况且，Java原生的密钥库文件格式为JKS，如何操作*.pfx文件？密钥库操作需要获知密钥库别名，*.pfx别名是什么？！接下来就解决这些问题！
方案：
通过keytool密钥库导入命令importkeystore，将密钥库格式由PKCS#12转换为JKS。
检索新生成的密钥库文件，提取别名信息。
由密钥库文件导出数字证书（这里将用到别名）。
通过代码提取公钥/私钥、签名算法等
先看格式转换：
Cmd代码
echo 格式转换
keytool -importkeystore -v -srckeystore zlex.pfx -srcstoretype pkcs12 -srcstorepass 123456 -destkeystore zlex.keystore -deststoretype jks -deststorepass 123456
-importkeystore导入密钥库，通过格式设定，我们可以将PKCS#12文件转换为JKS格式。
-v显示详情
-srckeystore源密钥库，这里是zlex.pfx
-srcstoretype源密钥库格式，这里为pkcs12
-srcstorepass源密钥库密码，这里为123456
-destkeystore目标密钥库，这里为zlex.keystore
-deststoretype目标密钥库格式，这里为jks，默认值也如此
-deststorepass目标密钥库密码，这里为123456
通过这个操作，我们能够获得所需的密钥库文件zlex.keystore。
这时，我们已经获得了密钥库文件，只要确定对应的别名信息，就可以提取公钥/私钥，以及数字证书，进行加密交互了！
Cmd代码
echo 查看证书
keytool -list -keystore zlex.keystore -storepass 123456 -v
-list列举密钥库
-keystore密钥库，这里是zlex.keystore
-storepass密钥库密码，这里是123456
-v显示详情
这里需要细致观察一下别名信息！！！就是红框中的数字1！！！
现在，我们把证书导出！
Cmd代码
echo 导出证书
keytool -exportcert -alias 1 -keystore zlex.keystore -file zlex.crt -storepass 123456
-exportcert导出证书
-alias别名，这里是1
-keystore密钥库，这里是zlex.keystore
-file证书文件，这里是zlex.crt
-storepass密钥库密码，这里是123456
现在证书也导出了，我们可以提取公钥/私钥，进行加密/解密，签名/验证操作了！当然，即便没有证书，我们也能够通过密钥库（JKS格式）文件获得证书，以及公钥/私钥、签名算法等。
补充代码， 其实就是对Java加密技术（八）的修改！
Java代码
/**
* 2010-8-11
*/
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Date;
import javax.crypto.Cipher;
/**
* 证书操作类
*
* @author 梁栋
* @since 1.0
*/
public class CertificateCoder {
/**
* Java密钥库(Java Key Store，JKS)KEY_STORE
*/
public static final String KEY_STORE = "JKS";
public static final String X509 = "X.509";
/**
* 由 KeyStore获得私钥
*
* @param keyStorePath
* @param keyStorePassword
* @param alias
* @param aliasPassword
* @return
* @throws Exception
*/
private static PrivateKey getPrivateKey(String keyStorePath,
String keyStorePassword, String alias, String aliasPassword)
throws Exception {
KeyStore ks = getKeyStore(keyStorePath, keyStorePassword);
PrivateKey key = (PrivateKey) ks.getKey(alias,
aliasPassword.toCharArray());
return key;
}
/**
* 由 Certificate获得公钥
*
* @param certificatePath
* @return
* @throws Exception
*/
private static PublicKey getPublicKey(String certificatePath)
throws Exception {
Certificate certificate = getCertificate(certificatePath);
PublicKey key = certificate.getPublicKey();
return key;
}
/**
* 获得Certificate
*
* @param certificatePath
* @return
* @throws Exception
*/
private static Certificate getCertificate(String certificatePath)
throws Exception {
CertificateFactory certificateFactory = CertificateFactory
.getInstance(X509);
FileInputStream in = new FileInputStream(certificatePath);
Certificate certificate = certificateFactory.generateCertificate(in);
in.close();
return certificate;
}
/**
* 获得Certificate
*
* @param keyStorePath
* @param keyStorePassword
* @param alias
* @return
* @throws Exception
*/
private static Certificate getCertificate(String keyStorePath,
String keyStorePassword, String alias) throws Exception {
KeyStore ks = getKeyStore(keyStorePath, keyStorePassword);
Certificate certificate = ks.getCertificate(alias);
return certificate;
}
/**
* 获得KeyStore
*
* @param keyStorePath
* @param password
* @return
* @throws Exception
*/
private static KeyStore getKeyStore(String keyStorePath, String password)
throws Exception {
FileInputStream is = new FileInputStream(keyStorePath);
KeyStore ks = KeyStore.getInstance(KEY_STORE);
ks.load(is, password.toCharArray());
is.close();
return ks;
}
/**
* 私钥加密
*
* @param data
* @param keyStorePath
* @param keyStorePassword
* @param alias
* @param aliasPassword
* @return
* @throws Exception
*/
public static byte[] encryptByPrivateKey(byte[] data, String keyStorePath,
String keyStorePassword, String alias, String aliasPassword)
throws Exception {
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, keyStorePassword,
alias, aliasPassword);
// 对数据加密
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 私钥解密
*
* @param data
* @param keyStorePath
* @param alias
* @param keyStorePassword
* @param aliasPassword
* @return
* @throws Exception
*/
public static byte[] decryptByPrivateKey(byte[] data, String keyStorePath,
String alias, String keyStorePassword, String aliasPassword)
throws Exception {
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, keyStorePassword,
alias, aliasPassword);
// 对数据加密
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateKey);
return cipher.doFinal(data);
}
/**
* 公钥加密
*
* @param data
* @param certificatePath
* @return
* @throws Exception
*/
public static byte[] encryptByPublicKey(byte[] data, String certificatePath)
throws Exception {
// 取得公钥
PublicKey publicKey = getPublicKey(certificatePath);
// 对数据加密
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 公钥解密
*
* @param data
* @param certificatePath
* @return
* @throws Exception
*/
public static byte[] decryptByPublicKey(byte[] data, String certificatePath)
throws Exception {
// 取得公钥
PublicKey publicKey = getPublicKey(certificatePath);
// 对数据加密
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicKey);
return cipher.doFinal(data);
}
/**
* 验证Certificate
*
* @param certificatePath
* @return
*/
public static boolean verifyCertificate(String certificatePath) {
return verifyCertificate(new Date(), certificatePath);
}
/**
* 验证Certificate是否过期或无效
*
* @param date
* @param certificatePath
* @return
*/
public static boolean verifyCertificate(Date date, String certificatePath) {
boolean status = true;
try {
// 取得证书
Certificate certificate = getCertificate(certificatePath);
// 验证证书是否过期或无效
status = verifyCertificate(date, certificate);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 验证证书是否过期或无效
*
* @param date
* @param certificate
* @return
*/
private static boolean verifyCertificate(Date date, Certificate certificate) {
boolean status = true;
try {
X509Certificate x509Certificate = (X509Certificate) certificate;
x509Certificate.checkValidity(date);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 签名
*
* @param keyStorePath
* @param alias
* @param keyStorePassword
* @param aliasPassword
* @return
* @throws Exception
*/
public static byte[] sign(byte[] sign, String keyStorePath, String alias,
String keyStorePassword, String aliasPassword) throws Exception {
// 获得证书
X509Certificate x509Certificate = (X509Certificate) getCertificate(
keyStorePath, keyStorePassword, alias);
// 取得私钥
PrivateKey privateKey = getPrivateKey(keyStorePath, keyStorePassword,
alias, aliasPassword);
// 构建签名
Signature signature = Signature.getInstance(x509Certificate
.getSigAlgName());
signature.initSign(privateKey);
signature.update(sign);
return signature.sign();
}
/**
* 验证签名
*
* @param data
* @param sign
* @param certificatePath
* @return
* @throws Exception
*/
public static boolean verify(byte[] data, byte[] sign,
String certificatePath) throws Exception {
// 获得证书
X509Certificate x509Certificate = (X509Certificate) getCertificate(certificatePath);
// 获得公钥
PublicKey publicKey = x509Certificate.getPublicKey();
// 构建签名
Signature signature = Signature.getInstance(x509Certificate
.getSigAlgName());
signature.initVerify(publicKey);
signature.update(data);
return signature.verify(sign);
}
/**
* 验证Certificate
*
* @param keyStorePath
* @param keyStorePassword
* @param alias
* @return
*/
public static boolean verifyCertificate(Date date, String keyStorePath,
String keyStorePassword, String alias) {
boolean status = true;
try {
Certificate certificate = getCertificate(keyStorePath,
keyStorePassword, alias);
status = verifyCertificate(date, certificate);
} catch (Exception e) {
status = false;
}
return status;
}
/**
* 验证Certificate
*
* @param keyStorePath
* @param keyStorePassword
* @param alias
* @return
*/
public static boolean verifyCertificate(String keyStorePath,
String keyStorePassword, String alias) {
return verifyCertificate(new Date(), keyStorePath, keyStorePassword,
alias);
}
}
相信上述代码已经帮朋友们解决了相当多的问题！
给出测试类：
Java代码
import static org.junit.Assert.*;
import java.util.Date;
import org.apache.commons.codec.binary.Hex;
import org.junit.Test;
/**
* 证书操作验证类
*
* @author 梁栋
* @version 1.0
* @since 1.0
*/
public class CertificateCoderTest {
private String certificatePath = "zlex.crt";
private String keyStorePath = "zlex.keystore";
private String keyStorePassword = "123456";
private String aliasPassword = "123456";
private String alias = "1";
@Test
public void test() throws Exception {
System.err.println("公钥加密——私钥解密");
String inputStr = "Ceritifcate";
byte[] data = inputStr.getBytes();
byte[] encrypt = CertificateCoder.encryptByPublicKey(data,
certificatePath);
byte[] decrypt = CertificateCoder.decryptByPrivateKey(encrypt,
keyStorePath, alias, keyStorePassword, aliasPassword);
String outputStr = new String(decrypt);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
// 验证数据一致
assertArrayEquals(data, decrypt);
// 验证证书有效
assertTrue(CertificateCoder.verifyCertificate(certificatePath));
}
@Test
public void testSign() throws Exception {
System.err.println("私钥加密——公钥解密");
String inputStr = "sign";
byte[] data = inputStr.getBytes();
byte[] encodedData = CertificateCoder.encryptByPrivateKey(data,
keyStorePath, keyStorePassword, alias, aliasPassword);
byte[] decodedData = CertificateCoder.decryptByPublicKey(encodedData,
certificatePath);
String outputStr = new String(decodedData);
System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
assertEquals(inputStr, outputStr);
System.err.println("私钥签名——公钥验证签名");
// 产生签名
byte[] sign = CertificateCoder.sign(encodedData, keyStorePath, alias,
keyStorePassword, aliasPassword);
System.err.println("签名:\r" + Hex.encodeHexString(sign));
// 验证签名
boolean status = CertificateCoder.verify(encodedData, sign,
certificatePath);
System.err.println("状态:\r" + status);
assertTrue(status);
}
@Test
public void testVerify() throws Exception {
System.err.println("密钥库证书有效期验证");
boolean status = CertificateCoder.verifyCertificate(new Date(),
keyStorePath, keyStorePassword, alias);
System.err.println("证书状态:\r" + status);
assertTrue(status);
}
}
第一个测试方法，用于提取公钥/私钥进行加密/解密操作。
第二个测试方法，用于提取签名算法进行签名/验证操作。
第三个测试方法，用于测试密钥库该别名对应的证书，当前日期下，是否有效。
OK，任务完成，密钥成功提取，剩下的都是代码基本功了！