MD5加密解密字符串

显示全部楼层 · 2013-4-13 08:37:39

刚刚发了DES加密解密的代码，现在是MD5的代码了，直接复制下来用即可

MD5加密

[C#] 纯文本查看 复制代码

/// <summary>
        /// MD5加密
        /// </summary>
        /// <param name="pToEncrypt">要加密字符串</param>
        /// <returns></returns>
       public static string MD5Encrypt(string pToEncrypt)
        {
            string sKey = "12345678";//默认8位加密密匙
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
            des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
            des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
            MemoryStream ms = new 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);
            }
            ret.ToString();
            return ret.ToString();
        }

MD5解密

[C#] 纯文本查看 复制代码

/// <summary>
        /// MD5加密
        /// </summary>
        /// <param name="pToEncrypt">要加密字符串</param>
        /// <returns></returns>
       public static string MD5Encrypt(string pToEncrypt)
        {
            string sKey = "12345678";//默认8位加密密匙
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
            des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
            des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
            MemoryStream ms = new 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);
            }
            ret.ToString();
            return ret.ToString();
        }