失败又能怎样
2017-03-14 16:06
如何使用java将你的名字用一个加密方式后输出
public class KkltHmac {
public static final String src = "hmac test";
public static void main(String[] args) {
jdkHmacMD5();
bcHmacMD5();
}
public static void jdkHmacMD5(){
KeyGenerator hmacMD5 = null;
try
{
// 初始化KeyGenerator
KeyGenerator keyGenerator = KeyGenerator.getInstance("HmacMD5");
// 产生密钥
SecretKey secretKey = keyGenerator.generateKey();
// 获取密钥
// byte[] key = secretKey.getEncoded();
byte[] key = Hex.decodeHex(new char[]{'1','2','3','4','5','6','7','8','9','a','b','c','d','e' });
// 还原密钥
SecretKey restoreSecretKey = new SecretKeySpec(key, "HmacMD5");
// 实例化MAC
Mac mac = Mac.getInstance(restoreSecretKey.getAlgorithm());
// 初始化MAC
mac.init(restoreSecretKey);
// 执行摘要
byte[] hmacMD5Bytes = mac.doFinal(src.getBytes());
System.out.println("jdk hmacMD5:" + Hex.encodeHexString(hmacMD5Bytes));
} catch (Exception e) {
e.printStackTrace();
}
}
// 用bouncy castle实现:
public static void bcHmacMD5()
{
HMac hmac = new HMac(new MD5Digest());
// 必须是16进制的字符,长度必须是2的倍数
hmac.init(new KeyParameter(org.bouncycastle.util.encoders.Hex.decode("123456789abcde")));
hmac.update(src.getBytes(), 0, src.getBytes().length);
// 执行摘要
byte[] hmacMD5Bytes = new byte[hmac.getMacSize()];
hmac.doFinal(hmacMD5Bytes, 0);
System.out.println("bc hmacMD5:" + org.bouncycastle.util.encoders.Hex.toHexString(hmacMD5Bytes));
}
}
把src改成你的名字即可
JAVA实现对称加密
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