.net core使用MD5加密解密字符串

 更新時間:2018年10月16日 08:38:35   作者:薛定諤家的貓   我要評論

這篇文章主要為大家詳細介紹了.net core使用MD5加密解密字符串,具有一定的參考價值,感興趣的小伙伴們可以參考一下

本文實例為大家分享了.net core使用MD5加密解密字符串的具體代碼,供大家參考,具體內容如下

/// <summary>
    /// 加密
    /// </summary>
    /// <param name="Text">要加密的文本</param>
    /// <param name="sKey">秘鑰</param>
    /// <returns></returns>
    public static string Encrypt(string Text, string sKey="test")
    {
      DESCryptoServiceProvider des = new DESCryptoServiceProvider();
      byte[] inputByteArray;
      inputByteArray = Encoding.Default.GetBytes(Text);
      des.Key = ASCIIEncoding.ASCII.GetBytes(Md5Hash(sKey).Substring(0,8));
      des.IV = ASCIIEncoding.ASCII.GetBytes(Md5Hash(sKey).Substring(0, 8));
      System.IO.MemoryStream ms = new System.IO.MemoryStream();
      CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
      cs.Write(inputByteArray, 0, inputByteArray.Length);
      cs.FlushFinalBlock();
      StringBuilder ret = new StringBuilder();
      foreach (byte b in ms.ToArray())
      {
        ret.AppendFormat("{0:X2}", b);
      }
      md4j= ret.ToString();
      return ret.ToString();
    }

/// <summary>
    /// 解密
    /// </summary>
    /// <param name="Text"></param>
    /// <param name="sKey"></param>
    /// <returns></returns>
    public static string Decrypt(string Text, string sKey = "test")
    {
      DESCryptoServiceProvider des = new DESCryptoServiceProvider();
      int len;
      len = Text.Length / 2;
      byte[] inputByteArray = new byte[len];
      int x, i;
      for (x = 0; x < len; x++)
      {
        i = Convert.ToInt32(Text.Substring(x * 2, 2), 16);
        inputByteArray[x] = (byte)i;
      }
      des.Key = ASCIIEncoding.ASCII.GetBytes(Md5Hash(sKey).Substring(0, 8));
      des.IV = ASCIIEncoding.ASCII.GetBytes(Md5Hash(sKey).Substring(0, 8));
      System.IO.MemoryStream ms = new System.IO.MemoryStream();
      CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
      cs.Write(inputByteArray, 0, inputByteArray.Length);
      cs.FlushFinalBlock();
      return Encoding.Default.GetString(ms.ToArray());
    }

/// <summary>
    /// 32位MD5加密
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    private static string Md5Hash(string input)
    {
      MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider();
      byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(input));
      StringBuilder sBuilder = new StringBuilder();
      for (int i = 0; i < data.Length; i++)
      {
        sBuilder.Append(data[i].ToString("x2"));
      }
      return sBuilder.ToString();
    }

調用加密 解密看效果

public static string md4j = "";
static void Main(string[] args)
  {
      //加密
     Encrypt("123456");
     Decrypt(md4j);
 }

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持腳本之家。

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