Java ECB NoPadding 加解密

话不多说 上代码

    private final static String secretKey = "2pYggJcu7V1tLxvSItfn74Ck";
    private final static String encoding = "utf-8";


    public static String encode(String source) throws Exception {
        DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("desede");
        SecretKey secretKey = keyFactory.generateSecret(spec);
        Cipher instance = Cipher.getInstance("desede/ECB/nopadding");
        instance.init(1, secretKey);
        byte[] bytes = instance.doFinal(source.getBytes(encoding));
        return Base64.encode(bytes);
    }

    public static String decode(String source) throws Exception {
        DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("desede");
        SecretKey secretKey = keyFactory.generateSecret(spec);
        Cipher instance = Cipher.getInstance("desede/ECB/nopadding");
        instance.init(Cipher.DECRYPT_MODE, secretKey);
        byte[] bytes = instance.doFinal(Base64.decode(source));
        return new String(bytes);
    }

    public static void main(String[] args) throws Exception {
//        String clearText = "qrUfm/W9ckzrVMi5Zv92HsAGpRW9zP7hs99NN59WmoL8ot4ve/nOIX9EH4Ig9g6sIllI5LAamaqu16K7CiXm0QZDm8jmM34YTqgQlmwx1LQ=";
        String sign = "7pHxCSvbKSari3+Q2RDi6mNDKTHXVZHRooOdAxRCtbvQCFEeWIjhlVhjQk/5Ll1acy2uIJz2zW3SV1e4H3fY4BAkbfvTbL76apSZh7vfzgdHWeY7IjfuLKOMXJ4WO22D";
        String signStr = "{\"yhm\":\"NJMBTEST\",\"nsrsbh\":\"91320114302413919L\",\"fjh\":\"0\",\"sqm\":\"3R7TG2KATZ\",\"zcm\":\"82533885\"}";
        String encode = encode(StringToByte8(signStr));
        System.out.println(encode);
        String decode = decode(sign);
        System.out.println(decode);
    }

    public static String StringToByte8(String str) throws UnsupportedEncodingException {
        int len = str.getBytes(encoding).length;
        if (len % 8 != 0) {
            byte[] strtemp = new byte[len + (8 - len % 8)];
            for (int i = 0; i < len; i++) {
                strtemp[i] = str.getBytes(encoding)[i];
            }
            str = new String(strtemp, encoding);
        }
        System.out.println(str.getBytes(encoding).length);
        return str;
    }

原文地址：https://www.jb51.cc/wenti/3282759.html