Java加密 消息摘要算法SHA实现详解

private static void SHA_JDK(){
    try {
      MessageDigest digest = MessageDigest.getInstance("SHA");//我们可以通过SHA\SHA-1\SHA-384\SHA-256\SHA-512来获得不同的消息摘要密钥
      digest.update(src.getBytes());
      System.out.println("SHA ："+Hex.encodeHexString(digest.digest()));
    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    }
  }

private static void SHA_BC(){
    Digest digest = new SHA1Digest();
    digest.update(src.getBytes(), 0, src.getBytes().length);
    byte[] shaByte = new byte[digest.getDigestSize()];
    digest.doFinal(shaByte, 0);
    System.out.println("shaByte : "+Hex.encodeHexString(shaByte));
  }

private static void SHA224_BC(){
    Digest digest = new SHA224Digest();
    digest.update(src.getBytes(), 0, src.getBytes().length);
    byte[] sha224Byte = new byte[digest.getDigestSize()];
    digest.doFinal(sha224Byte, 0);
    System.out.println("sha224Byte : "+Hex.encodeHexString(sha224Byte));
  }

private static void SHA224_BC_JDK(){
    Security.addProvider(new BouncyCastleProvider());
    try {
      MessageDigest digest = MessageDigest.getInstance("SHA-224");
      digest.update(src.getBytes());
      System.out.println("SHA224_BC_JDK ："+Hex.encodeHexString(digest.digest()));
    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    }
  }

private static void SHA_CC_Byte(){
    System.out.println("SHA_CC_Byte_SHA1 : "+DigestUtils.sha1Hex(src.getBytes()));
    System.out.println("SHA_CC_Byte_SHA256 : "+DigestUtils.sha256Hex(src.getBytes()));
    System.out.println("SHA_CC_Byte_SHA384 : "+DigestUtils.sha384Hex(src.getBytes()));
    System.out.println("SHA_CC_Byte_SHA512 : "+DigestUtils.sha512Hex(src.getBytes()));
  }
   
  private static void SHA_CC(){
    System.out.println("SHA_CC_SHA1 : "+DigestUtils.sha1Hex(src));
    System.out.println("SHA_CC_SHA256 : "+DigestUtils.sha256Hex(src));
    System.out.println("SHA_CC_SHA384 : "+DigestUtils.sha384Hex(src));
    System.out.println("SHA_CC_SHA512 : "+DigestUtils.sha512Hex(src));
  }