在Java中使用BlowFish进行加密

  • Z时代
  • 2024-01-10
  • 分类：问答

以下代码对我来说可以用BlowFish加密对字符串加密。

          // create a key generator based upon the Blowfish cipher
    KeyGenerator keygenerator = KeyGenerator.getInstance("Blowfish");
    // create a key
    SecretKey secretkey = keygenerator.generateKey();
    // create a cipher based upon Blowfish
    Cipher cipher = Cipher.getInstance("Blowfish");
    // initialise cipher to with secret key
    cipher.init(Cipher.ENCRYPT_MODE, secretkey);
    // get the text to encrypt
    String inputText = "MyTextToEncrypt";
    // encrypt message
    byte[] encrypted = cipher.doFinal(inputText.getBytes());

如果我想定义自己的密钥，该怎么做？

回答：

String Key = "Something";
byte[] KeyData = Key.getBytes();
SecretKeySpec KS = new SecretKeySpec(KeyData, "Blowfish");
Cipher cipher = Cipher.getInstance("Blowfish");
cipher.init(Cipher.ENCRYPT_MODE, KS);

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