.net core使用MD5加密解密字符串

本文实例为大家分享了.net core使用md5加密解密字符串的具体代码，供大家参考，具体内容如下

/// <summary>
    /// 加密
    /// </summary>
    /// <param name="text">要加密的文本</param>
    /// <param name="skey">秘钥</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();
    }

调用加密 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内容，希望对大家的学习有所帮助，也希望大家多多支持。