RSA签名加密解密
目录
- Java 接口
-
- RSAUtils.java
- 示例中的依赖
- 生成密钥对示例
- 签名示例
- 验证签名示例
- 加密和解密示例
- Javascript 接口
-
- 引入依赖
- 生成密钥对示例
- 签名示例
- 验证签名示例
- 加密和解密示例
- 说在最后
Java 接口
- 支持的密钥长度包括4种 RSA512、RSA1024、RSA2048、RSA4096
- 支持的签名算法包括7种 MD2withRSA、MD5withRSA、SHA1withRSA、SHA224withRSA、SHA256withRSA、SHA384withRSA、SHA512withRSA
- 对明文及密文长度没有限制
- 其中，java6 不支持签名算法 SHA224withRSA、SHA256withRSA、SHA384withRSA、SHA512withRSA
- 其中 java.util.Base64 为 java8 及以上版本支持的 API，低于 java8 的版本需要替换为其他工具类库。
RSAUtils.java
package com.sm;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
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.Base64;
import java.util.HashMap;
import java.util.Map;
import javax.crypto.Cipher;
/**
*
* @Description: RSA签名,加解密处理核心文件
*/
public final class RSAUtils {
/**
* 加密算法RSA
*/
private static final String KEY_ALGORITHM = "RSA";
/**
* 获取公钥的key
*/
public static final String PUBLIC_KEY = "RSAPublicKey";
/**
* 获取私钥的key
*/
public static final String PRIVATE_KEY = "RSAPrivateKey";
public static RSAEncrypt getRSA512() {
return RSAEncrypt.RSA512;
}
public static RSAEncrypt getRSA1024() {
return RSAEncrypt.RSA1024;
}
public static RSAEncrypt getRSA2048() {
return RSAEncrypt.RSA2048;
}
public static RSAEncrypt getRSA4096() {
return RSAEncrypt.RSA4096;
}
/**
*
* 获取私钥
*
*
* @param keyMap 密钥对
* @return
* @throws Exception
*/
public static String getPrivateKey(Map<String, Object> keyMap) throws Exception {
Key key = (Key) keyMap.get(PRIVATE_KEY);
return Base64.getEncoder().encodeToString(key.getEncoded());
}
/**
*
* 获取公钥
*
*
* @param keyMap 密钥对
* @return
* @throws Exception
*/
public static String getPublicKey(Map<String, Object> keyMap) throws Exception {
Key key = (Key) keyMap.get(PUBLIC_KEY);
return Base64.getEncoder().encodeToString(key.getEncoded());
}
/**
* @param content
* @param charset
* @return
* @throws SignatureException
* @throws UnsupportedEncodingException
*/
private static byte[] getContentBytes(String content, String charset) {
if (charset == null || "".equals(charset)) {
return content.getBytes();
}
try {
return content.getBytes(charset);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("UnsupportedEncoding:" + charset, e);
}
}
public static enum RSAEncryptEnum {
RSA512(512, 53, 64),
RSA1024(1024, 117, 128),
RSA2048(2048, 245, 256),
RSA4096(4096, 501, 512)
;
/**
* RSA key的长度
*/
private final int keysize;
/**
* RSA最大加密明文大小
*/
private final int maxEncryptBlock;
/**
* RSA最大解密密文大小
*/
private final int maxDecryptBlock;
private RSAEncryptEnum(int keysize, int maxEncryptBlock, int maxDecryptBlock) {
this.keysize = keysize;
this.maxEncryptBlock = maxEncryptBlock;
this.maxDecryptBlock = maxDecryptBlock;
}
public int getKeysize() {
return keysize;
}
public int getMaxEncryptBlock() {
return maxEncryptBlock;
}
public int getMaxDecryptBlock() {
return maxDecryptBlock;
}
}
public static final class RSAEncrypt {
private final RSAEncryptEnum rsaEncryptEnum;
private RSAEncrypt(RSAEncryptEnum rsaEncryptEnum) {
this.rsaEncryptEnum = rsaEncryptEnum;
}
static final RSAEncrypt RSA512 = new RSAEncrypt(RSAEncryptEnum.RSA512);
static final RSAEncrypt RSA1024 = new RSAEncrypt(RSAEncryptEnum.RSA1024);
static final RSAEncrypt RSA2048 = new RSAEncrypt(RSAEncryptEnum.RSA2048);
static final RSAEncrypt RSA4096 = new RSAEncrypt(RSAEncryptEnum.RSA4096);
/**
*
* 生成密钥对(公钥和私钥)
*
*
* @return
* @throws Exception
*/
public Map<String, Object> genKeyPair() throws Exception {
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
keyPairGen.initialize(this.rsaEncryptEnum.getKeysize());
KeyPair keyPair = keyPairGen.generateKeyPair();
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
Map<String, Object> keyMap = new HashMap<>(2, 1.0f);
keyMap.put(PUBLIC_KEY, publicKey);
keyMap.put(PRIVATE_KEY, privateKey);
return keyMap;
}
/**
*
* 私钥解密
*
*
* @param encryptedData 已加密数据
* @param privateKey 私钥(BASE64编码)
* @return
* @throws Exception
*/
public byte[] decryptByPrivateKey(byte[] encryptedData, String privateKey) throws Exception {
byte[] keyBytes = Base64.getDecoder().decode(privateKey);
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateK);
int inputLen = encryptedData.length;
ByteArrayOutputStream out = new ByteArrayOutputStream();
int offSet = 0;
byte[] cache;
int i = 0;
int maxDecryptBlock = this.rsaEncryptEnum.getMaxDecryptBlock();
// 对数据分段解密
while (inputLen - offSet > 0) {
if (inputLen - offSet > maxDecryptBlock) {
cache = cipher.doFinal(encryptedData, offSet, maxDecryptBlock);
} else {
cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
}
out.write(cache, 0, cache.length);
i++;
offSet = i * maxDecryptBlock;
}
byte[] decryptedData = out.toByteArray();
out.close();
return decryptedData;
}
/**
*
* 公钥解密
*
*
* @param encryptedData 已加密数据
* @param publicKey 公钥(BASE64编码)
* @return
* @throws Exception
*/
public byte[] decryptByPublicKey(byte[] encryptedData, String publicKey) throws Exception {
byte[] keyBytes = Base64.getDecoder().decode(publicKey);
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key publicK = keyFactory.generatePublic(x509KeySpec);
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicK);
int inputLen = encryptedData.length;
ByteArrayOutputStream out = new ByteArrayOutputStream();
int offSet = 0;
byte[] cache;
int i = 0;
int maxDecryptBlock = this.rsaEncryptEnum.getMaxDecryptBlock();
// 对数据分段解密
while (inputLen - offSet > 0) {
if (inputLen - offSet > maxDecryptBlock) {
cache = cipher.doFinal(encryptedData, offSet, maxDecryptBlock);
} else {
cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
}
out.write(cache, 0, cache.length);
i++;
offSet = i * maxDecryptBlock;
}
byte[] decryptedData = out.toByteArray();
out.close();
return decryptedData;
}
/**
*
* 公钥加密
*
*
* @param data 源数据
* @param publicKey 公钥(BASE64编码)
* @return
* @throws Exception
*/
public byte[] encryptByPublicKey(byte[] data, String publicKey) throws Exception {
byte[] keyBytes = Base64.getDecoder().decode(publicKey);
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key publicK = keyFactory.generatePublic(x509KeySpec);
// 对数据加密
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, publicK);
int inputLen = data.length;
ByteArrayOutputStream out = new ByteArrayOutputStream();
int offSet = 0;
byte[] cache;
int i = 0;
int maxEncryptBlock = this.rsaEncryptEnum.getMaxEncryptBlock();
// 对数据分段加密
while (inputLen - offSet > 0) {
if (inputLen - offSet > maxEncryptBlock) {
cache = cipher.doFinal(data, offSet, maxEncryptBlock);
} else {
cache = cipher.doFinal(data, offSet, inputLen - offSet);
}
out.write(cache, 0, cache.length);
i++;
offSet = i * maxEncryptBlock;
}
byte[] encryptedData = out.toByteArray();
out.close();
return encryptedData;
}
/**
*
* 私钥加密
*
*
* @param data 源数据
* @param privateKey 私钥(BASE64编码)
* @return
* @throws Exception
*/
public byte[] encryptByPrivateKey(byte[] data, String privateKey) throws Exception {
byte[] keyBytes = Base64.getDecoder().decode(privateKey);
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateK);
int inputLen = data.length;
ByteArrayOutputStream out = new ByteArrayOutputStream();
int offSet = 0;
byte[] cache;
int i = 0;
int maxEncryptBlock = this.rsaEncryptEnum.getMaxEncryptBlock();
// 对数据分段加密
while (inputLen - offSet > 0) {
if (inputLen - offSet > maxEncryptBlock) {
cache = cipher.doFinal(data, offSet, maxEncryptBlock);
} else {
cache = cipher.doFinal(data, offSet, inputLen - offSet);
}
out.write(cache, 0, cache.length);
i++;
offSet = i * maxEncryptBlock;
}
byte[] encryptedData = out.toByteArray();
out.close();
return encryptedData;
}
}
public static RSASignature getMD2withRSA() {
return RSASignature.MD2_WITH_RSA;
}
public static RSASignature getMD5withRSA() {
return RSASignature.MD5_WITH_RSA;
}
public static RSASignature getSHA1withRSA() {
return RSASignature.SHA1_WITH_RSA;
}
public static RSASignature getSHA224withRSA() {
return RSASignature.SHA224_WITH_RSA;
}
public static RSASignature getSHA256withRSA() {
return RSASignature.SHA256_WITH_RSA;
}
public static RSASignature getSHA384withRSA() {
return RSASignature.SHA384_WITH_RSA;
}
public static RSASignature getSHA512withRSA() {
return RSASignature.SHA512_WITH_RSA;
}
public static final class RSASignature {
/**
* 签名算法
*/
private final String signatureAlgorithm;
private RSASignature(String signatureAlgorithm) {
this.signatureAlgorithm = signatureAlgorithm;
}
static final RSASignature MD2_WITH_RSA = new RSASignature("MD2withRSA");
static final RSASignature MD5_WITH_RSA = new RSASignature("MD5withRSA");
static final RSASignature SHA1_WITH_RSA = new RSASignature("SHA1withRSA");
static final RSASignature SHA224_WITH_RSA = new RSASignature("SHA224withRSA");
static final RSASignature SHA256_WITH_RSA = new RSASignature("SHA256withRSA");
static final RSASignature SHA384_WITH_RSA = new RSASignature("SHA384withRSA");
static final RSASignature SHA512_WITH_RSA = new RSASignature("SHA512withRSA");
/**
* 签名字符串
*
* @param text
* 需要签名的字符串
* @param privateKey 私钥(BASE64编码)
*
* @param charset
* 编码格式
* @return 签名结果(BASE64编码)
*/
public String sign(String text, String privateKey, String charset) throws Exception {
byte[] keyBytes = Base64.getDecoder().decode(privateKey);
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
PrivateKey privateK = keyFactory.generatePrivate(pkcs8KeySpec);
Signature signature = Signature.getInstance(this.signatureAlgorithm);
signature.initSign(privateK);
signature.update(getContentBytes(text, charset));
byte[] result = signature.sign();
return Base64.getEncoder().encodeToString(result);
}
/**
* 签名字符串
*
* @param text
* 需要签名的字符串
* @param sign
* 客户签名结果
* @param publicKey
* 公钥(BASE64编码)
* @param charset
* 编码格式
* @return 验签结果
*/
public boolean verify(String text, String sign, String publicKey, String charset) throws Exception {
byte[] keyBytes = Base64.getDecoder().decode(publicKey);
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
PublicKey publicK = keyFactory.generatePublic(keySpec);
Signature signature = Signature.getInstance(this.signatureAlgorithm);
signature.initVerify(publicK);
signature.update(getContentBytes(text, charset));
return signature.verify(Base64.getDecoder().decode(sign));
}
}
}
示例中的依赖
import java.util.Base64;
import java.util.Map;
import com.sm.RSAUtils.RSAEncrypt;
import com.sm.RSAUtils.RSASignature;
生成密钥对示例
public static void genKeyPair () throws Exception {
RSAEncrypt rsaEncrypt = RSAUtils.getRSA1024();
//生成密钥对
Map<String, Object> map = rsaEncrypt.genKeyPair();
String pubKey = RSAUtils.getPublicKey(map);
String priKey = RSAUtils.getPrivateKey(map);
System.out.println("pubKey-->"+pubKey);
System.out.println("priKey-->"+priKey);
}
签名示例
public static void sign() throws Exception {
String pubKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsXBwH6me+8+P3BdtnZnsze3nQXCmt8+9+jcLmxK+Q2Oe6qQ3hfElokUpWBLogEgmoj5/dF+xWaQYAzvd1LR7zuKDESQmRnOb9FQD6Pr2RsDOTFBCa5DA0EQ17TmqqaJT9+xrcIVxU/Y2+2tCkRJBJuo7hRoFoM2l37ju9InTGA9P/vQXi9jjSiZ5o6Zbu6svHG1B/1GsnC+wtszYzsMZs7Lo2N5lK2e+q2bBnpvb7PpWOWTGVpeFoivbH+fCIRB6wiFAiQxeZ++KNs2Coi7zoj6cOX49aG4rv4/gnwftOKq4Fb9I+cQW5v7d3Nmp6Jh647DshTEwpLlyxt1J0feUQIDAQAB";
String priKey = "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";
String text = "id_card=1121321121321321中文2123123&partner_id=TLHS2020001";
final String charset = "utf-8";
RSASignature rsaSignature = RSAUtils.getSHA256withRSA();
String sign = rsaSignature.sign(text, priKey, charset);
System.out.println("sign-->"+sign);
}
验证签名示例
public static void verify() throws Exception {
String pubKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsXBwH6me+8+P3BdtnZnsze3nQXCmt8+9+jcLmxK+Q2Oe6qQ3hfElokUpWBLogEgmoj5/dF+xWaQYAzvd1LR7zuKDESQmRnOb9FQD6Pr2RsDOTFBCa5DA0EQ17TmqqaJT9+xrcIVxU/Y2+2tCkRJBJuo7hRoFoM2l37ju9InTGA9P/vQXi9jjSiZ5o6Zbu6svHG1B/1GsnC+wtszYzsMZs7Lo2N5lK2e+q2bBnpvb7PpWOWTGVpeFoivbH+fCIRB6wiFAiQxeZ++KNs2Coi7zoj6cOX49aG4rv4/gnwftOKq4Fb9I+cQW5v7d3Nmp6Jh647DshTEwpLlyxt1J0feUQIDAQAB";
String priKey = "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCexcHAfqZ77z4/cF22dmezN7edBcKa3z736NwubEr5DY57qpDeF8SWiRSlYEuiASCaiPn90X7FZpBgDO93UtHvO4oMRJCZGc5v0VAPo+vZGwM5MUEJrkMDQRDXtOaqpolP37GtwhXFT9jb7a0KREkEm6juFGgWgzaXfuO70idMYD0/+9BeL2ONKJnmjplu7qy8cbUH/UaycL7C2zNjOwxmzsujY3mUrZ76rZsGem9vs+lY5ZMZWl4WiK9sf58IhEHrCIUCJDF5n74o2zYKiLvOiPpw5fj1obiu/j+CfB+04qrgVv0j5xBbm/t3c2anomHrjsOyFMTCkuXLG3UnR95RAgMBAAECggEAJP8BqcAZPRG/WHrvaz/l5A3cnBsmgH36pzu8apjTU3tEMy7IeOfi6AzjIbHxjbtjhH7cebdiKc8/XxJEjnJe9rbR8Q/c/b/UqZuFY0+X+kvgEWiXthDEDrMPoKPHiAYsQs9mEI4EEqkLaBvW0Wid9xPqZiedJXnHs79eg3pxq8r3JNCLfgG3sl+2WkaAyhPXcG9Pw5E1WjxAQqcW79i8Wk1LQHonWXoE3/HisFMFQNGb0s8iAjord+M/OdEgr64hZypkpnXZ4xtopeeVjVfA6km/UHwl4UHjUvj2OvgHIYNniHx0Ap6W3Q8ef9ncy2oXbZvKlHYu0AykheCLJ7P0/QKBgQDLlxYcPMdSq19QJD9PJJTmD9IO75uNxX2ITsBuiSk81LqiYFm2x9EsKQF7lqZ1xPcoQu/AW1CrO3J9HSSsW4D27yO8dMgL38jT5O5lDiF+Fs+f3c5LDq8vCvXEF5MARo5rgyX7CMJjo1tFoDEX1zEfoBoMmoFfxFuOTlx8/zRHDwKBgQDHpR0nNGnDmW1GtU2uBnrxZo4cTIA3kZPEoQJIrvVkkQ/k1fuZMtzYTsSSEG4b1ZI2tdqm8wItQ50gXyQOCZ6B7kSkU/xelPCEfK7zRObPLS1IOyiayNw7aAwmZI2GERAm9TBlewn2PCJGT9F1vDGTb8M70tkgl8PUXm+XnBSEnwKBgCbKb80Li5Ll0jBL58AloTVAmG5+Gu5lTajWEHY/LhtIERN1NkLMSb+XRJAOwUK5N7p1HodRHsqxdfv+vIkWmjjykaWLvr38cqBlA0M/8QO8Ru0X7wGAF8Ln3LHzJ/AqgWJcx7TQE3G2o2JdxlzbhKGY+L2kBrh/ik5QAfFTEtvjAoGATBWQ1rAS3ohKLPhLclbl47nBzucYthS0y+rQhAKpYnomJH+oMuo/X/Ak2cWJMPJjlpYXjihuW/G4n+2iP/dKgRnc7wNS2njIcLVTt0I69BmzeCOThemmhL1SZA9OIBnAnhgzKXmKglzIcyNYIBZojle5f8MLHHC6IOUcghrpduECgYEAlZgVK0trRmi+Dy2lmkhmBXckq1Xle1cJac3zZYeg9+Cd424WDyqhl2SFNDrvvTGCW9PtONMQBXUxnbImWDb8lw4ClY2tR0XZe0YycGMcV983PsTjJqET+8oGPVLGmnlCLJ4X9raQYKDWpDyGOFfX91QsFOnnSprTrylhjnhC3ko=";
String text = "id_card=1121321121321321中文2123123&partner_id=TLHS2020001";
String sign = "GAjmZiUH0hnMOZyOiViCvzZDHoMVXdmwjyyLiAOgBYFhM0/d8GPiPMKZsPIAmIKiDRwX37bOoG+wD4/Miptq5+3tmt8Cqktzv8v2Z6kGNejkJl9Mos5lgRI7kdFf9GMiQuy3lvRybOT8S0HFGr2vFrMrUrkYL9W+PzlILS7sQuerLqVm0xKIuj5/thm8L5kcVQFozudxydbYxsBp8pvSqsVRCZ4mPO/S6I1NTeS7ffLGixrmyWsXEVX9/D11WGgN3UYrNlEVna9Y4VOk9o9bB8un/FaJyyMuIHpT0YYLjZxAO2GpxuD9dsJbEL990Lr5k+P66mCeC5mNX/s2jBI49w==";
final String charset = "utf-8";
RSASignature rsaSignature = RSAUtils.getSHA256withRSA();
if(rsaSignature.verify(text, sign, pubKey, charset)) {
System.out.println("验签成功");
}else {
System.out.println("验签失败");
}
}
加密和解密示例
public static void encryptAndDecrypt() throws Exception {
RSAEncrypt rsaEncrypt = RSAUtils.getRSA2048();
String pubKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsXBwH6me+8+P3BdtnZnsze3nQXCmt8+9+jcLmxK+Q2Oe6qQ3hfElokUpWBLogEgmoj5/dF+xWaQYAzvd1LR7zuKDESQmRnOb9FQD6Pr2RsDOTFBCa5DA0EQ17TmqqaJT9+xrcIVxU/Y2+2tCkRJBJuo7hRoFoM2l37ju9InTGA9P/vQXi9jjSiZ5o6Zbu6svHG1B/1GsnC+wtszYzsMZs7Lo2N5lK2e+q2bBnpvb7PpWOWTGVpeFoivbH+fCIRB6wiFAiQxeZ++KNs2Coi7zoj6cOX49aG4rv4/gnwftOKq4Fb9I+cQW5v7d3Nmp6Jh647DshTEwpLlyxt1J0feUQIDAQAB";
String priKey = "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";
String text = "id_card=1121321121321321中文2123123&partner_id=TLHS2020001";
// 加密与解密
byte[] data = text.getBytes();
System.out.println("加密前--->" + new String(data));
byte[] encryptedDataPri = rsaEncrypt.encryptByPrivateKey(data, priKey);// 密文
System.out.println("私钥加密后--->" + Base64.getEncoder().encodeToString(encryptedDataPri));
byte[] decryptedDataPub = rsaEncrypt.decryptByPublicKey(encryptedDataPri, pubKey);
System.out.println("公钥解密后--->"+new String(decryptedDataPub));
byte[] encryptedDataPub = rsaEncrypt.encryptByPublicKey(data, pubKey);// 密文
System.out.println("公钥加密后--->" + Base64.getEncoder().encodeToString(encryptedDataPub));
byte[] decryptedDataPri = rsaEncrypt.decryptByPrivateKey(encryptedDataPub, priKey);
System.out.println("私钥解密后--->"+new String(decryptedDataPri));
}
Javascript 接口
- jsencrypt 支持的密钥长度包括4种 RSA512、RSA1024、RSA2048、RSA4096
- crypto-js 支持的签名算法包括 MD5、SHA1、SHA224、SHA256、SHA384、SHA512 等多种算法
- 对明文及密文长度有限制，超长会报错，可以查看 https://github.com/travist/jsencrypt/issues/110 尝试解决
- 经测试，jsencrypt 不支持使用私钥加密，即由私钥加密产生的密文不能被解密。
引入依赖
github链接
https://github.com/travist/jsencrypt
https://github.com/brix/crypto-js/tree/4.1.1
<script type="text/javascript" src="jsencrypt.min.js"></script>
<script type="text/javascript" src="crypto-js.js"></script>
生成密钥对示例
(function () {
//生成密钥对
var crypt = new JSEncrypt({default_key_size: 2048});
crypt.getKey();
console.log('PrivateKey', crypt.getPrivateKey());
console.log('PublicKey', crypt.getPublicKey());
})();
签名示例
(function () {
//RSA2048签名
var pubKey = 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsXBwH6me+8+P3BdtnZnsze3nQXCmt8+9+jcLmxK+Q2Oe6qQ3hfElokUpWBLogEgmoj5/dF+xWaQYAzvd1LR7zuKDESQmRnOb9FQD6Pr2RsDOTFBCa5DA0EQ17TmqqaJT9+xrcIVxU/Y2+2tCkRJBJuo7hRoFoM2l37ju9InTGA9P/vQXi9jjSiZ5o6Zbu6svHG1B/1GsnC+wtszYzsMZs7Lo2N5lK2e+q2bBnpvb7PpWOWTGVpeFoivbH+fCIRB6wiFAiQxeZ++KNs2Coi7zoj6cOX49aG4rv4/gnwftOKq4Fb9I+cQW5v7d3Nmp6Jh647DshTEwpLlyxt1J0feUQIDAQAB';
var priKey = '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';
//SHA256withRSA
var plainText = 'id_card=1121321121321321中文2123123&partner_id=TLHS2020001';
//**加签**
var sign = new JSEncrypt();
//设置私钥
sign.setPrivateKey(priKey);
//用私钥给明文加签,例子中使用SHA256算法，具体情况具体调整
var signature = sign.sign(plainText, CryptoJS.SHA256, "sha256");
console.log('sha256签名', signature);
})();
验证签名示例
(function () {
//RSA2048验签
var pubKey = 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsXBwH6me+8+P3BdtnZnsze3nQXCmt8+9+jcLmxK+Q2Oe6qQ3hfElokUpWBLogEgmoj5/dF+xWaQYAzvd1LR7zuKDESQmRnOb9FQD6Pr2RsDOTFBCa5DA0EQ17TmqqaJT9+xrcIVxU/Y2+2tCkRJBJuo7hRoFoM2l37ju9InTGA9P/vQXi9jjSiZ5o6Zbu6svHG1B/1GsnC+wtszYzsMZs7Lo2N5lK2e+q2bBnpvb7PpWOWTGVpeFoivbH+fCIRB6wiFAiQxeZ++KNs2Coi7zoj6cOX49aG4rv4/gnwftOKq4Fb9I+cQW5v7d3Nmp6Jh647DshTEwpLlyxt1J0feUQIDAQAB';
var priKey = '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';
//SHA256withRSA
var plainText = 'id_card=1121321121321321中文2123123&partner_id=TLHS2020001';
var signature = 'GAjmZiUH0hnMOZyOiViCvzZDHoMVXdmwjyyLiAOgBYFhM0/d8GPiPMKZsPIAmIKiDRwX37bOoG+wD4/Miptq5+3tmt8Cqktzv8v2Z6kGNejkJl9Mos5lgRI7kdFf9GMiQuy3lvRybOT8S0HFGr2vFrMrUrkYL9W+PzlILS7sQuerLqVm0xKIuj5/thm8L5kcVQFozudxydbYxsBp8pvSqsVRCZ4mPO/S6I1NTeS7ffLGixrmyWsXEVX9/D11WGgN3UYrNlEVna9Y4VOk9o9bB8un/FaJyyMuIHpT0YYLjZxAO2GpxuD9dsJbEL990Lr5k+P66mCeC5mNX/s2jBI49w==';
//**验签**
var verify = new JSEncrypt({
default_key_size: 2048
});
//设置公钥
verify.setPublicKey(pubKey);
//验证方法有三个参数明文，用私钥加签后的字符串,加签的算法(跟上文保持一致哈~)
var verified = verify.verify(plainText, signature, CryptoJS.SHA256);
// 判断验签是否成功
if (verified) {
console.log('验签成功啦~');
}
else {
console.log('验签失败啦....');
}
})();
加密和解密示例
(function () {
//RSA2048加密解密
var pubKey = 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsXBwH6me+8+P3BdtnZnsze3nQXCmt8+9+jcLmxK+Q2Oe6qQ3hfElokUpWBLogEgmoj5/dF+xWaQYAzvd1LR7zuKDESQmRnOb9FQD6Pr2RsDOTFBCa5DA0EQ17TmqqaJT9+xrcIVxU/Y2+2tCkRJBJuo7hRoFoM2l37ju9InTGA9P/vQXi9jjSiZ5o6Zbu6svHG1B/1GsnC+wtszYzsMZs7Lo2N5lK2e+q2bBnpvb7PpWOWTGVpeFoivbH+fCIRB6wiFAiQxeZ++KNs2Coi7zoj6cOX49aG4rv4/gnwftOKq4Fb9I+cQW5v7d3Nmp6Jh647DshTEwpLlyxt1J0feUQIDAQAB';
var priKey = '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';
var plainText = 'id_card=1121321121321321中文2123123&partner_id=TLHS2020001';
console.log('加密前', plainText);
var encryptPub = new JSEncrypt({
default_key_size: 2048
});
encryptPub.setPublicKey(pubKey);
var encryptedPub = encryptPub.encrypt(plainText);
console.log('公钥加密后', encryptedPub);
var decryptPri = new JSEncrypt({
default_key_size: 2048
});
decryptPri.setPrivateKey(priKey);
var uncryptedPri = decryptPri.decrypt(encryptedPub);
console.log('私钥解密后', uncryptedPri);
})();
说在最后
Java 和 Javascript 支持的生成密钥对签名加密解密功能可以通用。