Question

在加密字符串时，它会在字符串末尾生成'\n'。

这就是我进行加密的方式

public static String encrypt(String plainText) throws Exception {
        byte[] tdesKeyData = Consts.getSecretKey().getBytes();
        byte[] myIV = Consts.getInitializationVector().getBytes();
        SecretKeySpec myKey = new SecretKeySpec(tdesKeyData, "DES");
        IvParameterSpec ivspec = new IvParameterSpec(myIV);
        Cipher cipher = Cipher.getInstance("DESede/CBC/PKCS7Padding");
        cipher.init(Cipher.ENCRYPT_MODE, myKey, ivspec);

        byte[] plainTextBytes = plainText.getBytes("UTF-8");
        byte[] buf = cipher.doFinal(plainTextBytes);
        byte[] base64Bytes = Base64.encode(buf, Base64.DEFAULT);
        String base64EncryptedString = new String(base64Bytes);
        return base64EncryptedString;
    }

请有人指导我，我在这里做错了什么？预先感谢。

Answer 1

Base64.NO_WRAP

编码器标志位可省略所有行终止符（即，输出将在一条长行上）。

Answer 2

  public byte[] encrypt(String message) throws Exception {
        final MessageDigest md = MessageDigest.getInstance("md5");
        final byte[] digestOfPassword = md.digest("HG58YZ3CR9"
                .getBytes("utf-8"));
        final byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        for (int j = 0, k = 16; j < 8;) {
            keyBytes[k++] = keyBytes[j++];
        }

        final SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        final IvParameterSpec iv = new IvParameterSpec(new byte[8]);
        final Cipher cipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, key, iv);

        final byte[] plainTextBytes = message.getBytes("utf-8");
        final byte[] cipherText = cipher.doFinal(plainTextBytes);
        // final String encodedCipherText = new sun.misc.BASE64Encoder()
        // .encode(cipherText);

        return cipherText;
    }

    public String decrypt(byte[] message) throws Exception {
        final MessageDigest md = MessageDigest.getInstance("md5");
        final byte[] digestOfPassword = md.digest("HG58YZ3CR9"
                .getBytes("utf-8"));
        final byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        for (int j = 0, k = 16; j < 8;) {
            keyBytes[k++] = keyBytes[j++];
        }

        final SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        final IvParameterSpec iv = new IvParameterSpec(new byte[8]);
        final Cipher decipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
        decipher.init(Cipher.DECRYPT_MODE, key, iv);

        // final byte[] encData = new
        // sun.misc.BASE64Decoder().decodeBuffer(message);
        final byte[] plainText = decipher.doFinal(message);

        return new String(plainText, "UTF-8");
    }

尝试使用此代码对解密进行加密。

三重DES加密字符串生成“ \ n”

2 个答案: