using System;
using System.Security.Cryptography;
using System.Text;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Cmdjy.Bll.Tests
{
    [TestClass()]
    public class DesHelperTests
    {
        [TestMethod()]
        public void EncryptyTest() {
            byte[] IV = { 0x01,0x02,0x03,0x14,0x05,0x06,0x17,0x08 };
            string key = "12365478";
            var des = DesHelper.GetHelper(PaddingMode.PKCS7,CipherMode.CBC,IV);
            Console.WriteLine($"Key:{key}");
            string mingwen = getMingWen();
            Console.WriteLine($"明文:{mingwen}");
            var miwen = des.Encrypty(key,mingwen);
            Console.WriteLine($"密文：{miwen}");
            var miwen2 = des.Encrypty(key,mingwen);
            Console.WriteLine($"密文2：{miwen2}");
            Assert.AreEqual(miwen,miwen2);
            var mingwen2 = des.DesCrypty(key,miwen);
            Assert.AreEqual(mingwen,mingwen2);
        }

        public string getMingWen() {
            string str = "abcdefghijklmnopqrstuvwxyz1234567890,./*-+";
            var result = new StringBuilder();
            int len = 100;
            var rean = new Random();
            for(int i = 0;i < len;i++) {
                var p = rean.Next(str.Length);
                result.Append(str.ToCharArray()[p]);
            }
            return result.ToString();
        }
    }
}