说明：合作方使用的java的提供的示例MD5看如下：
package com.iread.example.util;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.MessageDigest;
import java.security.SecureRandom;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public final class SecurityUtil {
public SecurityUtil() {
}
public static byte[] getDigestSHA(String source) throws Exception {
return getDigestSHA(source.getBytes("UTF8"));
}
public static byte[] getDigestSHA(String source, String charset)
throws Exception {
return getDigestSHA(source.getBytes(charset));
}
public static byte[] getDigestSHA(byte source[]) throws Exception {
MessageDigest thisMD = MessageDigest.getInstance("SHA");
byte digest[] = thisMD.digest(source);
return digest;
}
public static String shaEncoding(byte source[]) throws Exception {
return encodeHex(getDigestSHA(source));
}
public static String shaEncoding(String source) throws Exception {
return encodeHex(getDigestSHA(source));
}
public static String shaEncoding(String source, String charset)
throws Exception {
return encodeHex(getDigestSHA(source, charset));
}
public static byte[] getDigestMD5(String source) throws Exception {
return getDigestMD5(source, "UTF8");
}
public static byte[] getDigestMD5(String source, String charset)
throws Exception {
return getDigestMD5(source.getBytes(charset));
}
public static byte[] getDigestMD5(byte source[]) throws Exception {
MessageDigest thisMD = MessageDigest.getInstance("MD5");
return thisMD.digest(source);
}
public static String md5encoding(String source) throws Exception {
return encodeHex(getDigestMD5(source));
}
public static String md5encoding(String source, String charset)
throws Exception {
return encodeHex(getDigestMD5(source, charset));
}
public static String md5encoding(byte source[]) throws Exception {
return encodeHex(getDigestMD5(source));
}
public static final String encodeHex(byte bytes[]) {
StringBuffer buf = new StringBuffer(bytes.length * 2);
for (int i = 0; i < bytes.length; i++) {
if ((bytes[i] & 255) < 16)
buf.append("0");
buf.append(Long.toString(bytes[i] & 255, 16));
}
return buf.toString();
}
public static final byte[] encryptAESByCBC(String sKey, String ivParam,
String sSrc) throws Exception {
return encryptAESByCBC(sKey, ivParam.getBytes(), sSrc);
}
public static final byte[] encryptAESByCBC(String sKey, byte ivParam[],
String sSrc) throws Exception {
return encryptAESByCBC(sKey.getBytes(), ivParam, sSrc);
}
public static final byte[] encryptAESByCBC(byte keyBytes[], byte ivBytes[],
String sSrc) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKeySpec skeySpec = new SecretKeySpec(keyBytes, "AES");
IvParameterSpec iv = new IvParameterSpec(ivBytes);
cipher.init(1, skeySpec, iv);
byte encrypted[] = cipher.doFinal(sSrc.getBytes("utf-8"));
return encrypted;
}
public static final String decryptAESByCBC(String sKey, String ivParam,
byte encrBytes[]) throws Exception {
return decryptAESByCBC(sKey, ivParam.getBytes(), encrBytes);
}
public static final String decryptAESByCBC(String sKey, byte ivBytes[],
byte encrBytes[]) throws Exception {
return decryptAESByCBC(sKey.getBytes("ASCII"), ivBytes, encrBytes);
}
public static final String decryptAESByCBC(byte keyBytes[], byte ivBytes[],
byte encrBytes[]) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(keyBytes, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
IvParameterSpec iv = new IvParameterSpec(ivBytes);
cipher.init(2, skeySpec, iv);
byte original[] = cipher.doFinal(encrBytes);
String originalString = new String(original, "utf-8");
return originalString;
}
public static KeyPair genKey() throws Exception {
long mySeed = System.currentTimeMillis();
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG", "SUN");
random.setSeed(mySeed);
keyGen.initialize(1024, random);
KeyPair keyPair = keyGen.generateKeyPair();
return keyPair;
}
public static byte[] encryptByRSA(byte pubKeyInByte[], byte data[])
throws Exception {
KeyFactory mykeyFactory = KeyFactory.getInstance("RSA");
X509EncodedKeySpec pub_spec = new X509EncodedKeySpec(pubKeyInByte);
java.security.PublicKey pubKey = mykeyFactory.generatePublic(pub_spec);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(1, pubKey);
return cipher.doFinal(data);
}
public static byte[] encryptByRSA(byte pubKeyInByte[], String data)
throws Exception {
return encryptByRSA(pubKeyInByte, data.getBytes("UTF8"));
}
public static byte[] decryptByRSA(byte privKeyInByte[], byte data[])
throws Exception {
PKCS8EncodedKeySpec priv_spec = new PKCS8EncodedKeySpec(privKeyInByte);
KeyFactory mykeyFactory = KeyFactory.getInstance("RSA");
java.security.PrivateKey privKey = mykeyFactory
.generatePrivate(priv_spec);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(2, privKey);
return cipher.doFinal(data);
}
public static byte[] decryptByRSA(byte privKeyInByte[], String data)
throws Exception {
return decryptByRSA(privKeyInByte, data.getBytes("UTF8"));
}
public static byte[] encodeAES(byte content[], String password)
throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
random.setSeed(password.getBytes());
kgen.init(128, random);
SecretKey secretKey = kgen.generateKey();
byte enCodeFormat[] = secretKey.getEncoded();
SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(1, key);
byte result[] = cipher.doFinal(content);
return result;
}
public static String parseByte2HexStr(byte buf[]) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < buf.length; i++) {
String hex = Integer.toHexString(buf[i] & 255);
if (hex.length() == 1)
hex = (new StringBuilder(String.valueOf('0'))).append(hex)
.toString();
sb.append(hex.toUpperCase());
}
return sb.toString();
}
public static void main(String args[]) throws Exception {
System.out.println(md5encoding("1"));
}
private static final String algorithm_rsa = "RSA";
private static final String algorithm_aes = "AES";
private static final String algorithm_sha = "SHA";
private static final String algorithm_md5 = "MD5";
private static final String algorithm_des = "DESede";
private static final String _charset = "UTF8";
private static final String transformation = "RSA/ECB/PKCS1Padding";
}
其中最关键的是：
chargeSign = Base64.encode( SecurityUtil.getDigestMD5(signStr));
调用的是：
public static byte[] getDigestMD5(String source) throws Exception {
return getDigestMD5(source, "UTF8");
}
对于的python 版本的加密应该是也是返回byte的：
返回16进制的str形式
def md5(text):
"""md5加密函数"""
md5 = hashlib.md5()
if not isinstance(text, bytes):
text = str(text).encode('utf-8')
md5.update(text)
return md5.hexdigest()
# hexdigest实际上返回的是16进制的str形式，digest返回的是bytes
返回的：bytes
def md5_digest(text):
"""md5加密函数"""
md5 = hashlib.md5()
if not isinstance(text, bytes):
text = str(text).encode('utf-8')
md5.update(text)
return md5.digest()
所有最终的形式应该是：
def md5_digest(text):
"""md5加密函数"""
md5 = hashlib.md5()
if not isinstance(text, bytes):
text = str(text).encode('utf-8')
md5.update(text)
return md5.digest()
def base64_encode_digest(text):
"""进行base64编码处理"""
return base64.b64encode(text)
然后调用：
chargeSign = str(encrypt_helper.base64_encode_digest(encrypt_helper.md5_digest(strkeys)))