C#中的常见加密解密类

今天小编就为大家带来一篇C#中的常见加密解密类的文章。小编觉得挺不错的，为此分享给大家做个参考。一起跟随小编过来看看吧。

常见的加密方式分为可逆和不可逆两种方式

可逆：RSA,AES,DES等

不可逆：常见的MD5，SHAD等

常见的加密方式封装到一个Password类中

    public class Password    {        /// 
        /// 此代码示例通过创建哈希字符串适用于任何 MD5 哈希函数 （在任何平台） 上创建 32 个字符的十六进制格式哈希字符串        /// 官网案例改编        /// 
        ///         ///         public static string Get32MD5One(string source)        {            using (System.Security.Cryptography.MD5 md5Hash = System.Security.Cryptography.MD5.Create())            {                byte[] data = md5Hash.ComputeHash(System.Text.Encoding.UTF8.GetBytes(source));                System.Text.StringBuilder sBuilder = new System.Text.StringBuilder();                for (int i = 0; i < data.Length; i++)                {                    sBuilder.Append(data[i].ToString("x2"));                }                string hash = sBuilder.ToString();                return hash.ToUpper();            }        }        /// 
        /// 获取16位md5加密        /// 
        ///         ///         public static string Get16MD5One(string source)        {            using (System.Security.Cryptography.MD5 md5Hash = System.Security.Cryptography.MD5.Create())            {                byte[] data = md5Hash.ComputeHash(System.Text.Encoding.UTF8.GetBytes(source));                //转换成字符串，并取9到25位                string sBuilder = BitConverter.ToString(data, 4, 8);                //BitConverter转换出来的字符串会在每个字符中间产生一个分隔符，需要去除掉                sBuilder = sBuilder.Replace("-", "");                return sBuilder.ToString().ToUpper();            }        }        //// 
        /// 
        /// 需要加密的明文        /// 返回32位加密结果，该结果取32位加密结果的第9位到25位        public static string Get32MD5Two(string source)        {            System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();            //获取密文字节数组            byte[] bytResult = md5.ComputeHash(System.Text.Encoding.Default.GetBytes(source));            //转换成字符串，32位            string strResult = BitConverter.ToString(bytResult);            //BitConverter转换出来的字符串会在每个字符中间产生一个分隔符，需要去除掉            strResult = strResult.Replace("-", "");            return strResult.ToUpper();        }        //// 
        /// 
        /// 需要加密的明文        /// 返回16位加密结果，该结果取32位加密结果的第9位到25位        public static string Get16MD5Two(string source)        {            System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();            //获取密文字节数组            byte[] bytResult = md5.ComputeHash(System.Text.Encoding.Default.GetBytes(source));            //转换成字符串，并取9到25位            string strResult = BitConverter.ToString(bytResult, 4, 8);            //BitConverter转换出来的字符串会在每个字符中间产生一个分隔符，需要去除掉            strResult = strResult.Replace("-", "");            return strResult.ToUpper();        }        //SHA为不可逆加密方式        public static string SHA1Encrypt(string normalTxt)        {            var bytes = System.Text.Encoding.Default.GetBytes(normalTxt);            var SHA = new System.Security.Cryptography.SHA1CryptoServiceProvider();            var encryptbytes = SHA.ComputeHash(bytes);            return Convert.ToBase64String(encryptbytes);        }        public static string SHA256Encrypt(string normalTxt)        {            var bytes = System.Text.Encoding.Default.GetBytes(normalTxt);            var SHA256 = new System.Security.Cryptography.SHA256CryptoServiceProvider();            var encryptbytes = SHA256.ComputeHash(bytes);            return Convert.ToBase64String(encryptbytes);        }        public static string SHA384Encrypt(string normalTxt)        {            var bytes = System.Text.Encoding.Default.GetBytes(normalTxt);            var SHA384 = new System.Security.Cryptography.SHA384CryptoServiceProvider();            var encryptbytes = SHA384.ComputeHash(bytes);            return Convert.ToBase64String(encryptbytes);        }        public string SHA512Encrypt(string normalTxt)        {            var bytes = System.Text.Encoding.Default.GetBytes(normalTxt);            var SHA512 = new System.Security.Cryptography.SHA512CryptoServiceProvider();            var encryptbytes = SHA512.ComputeHash(bytes);            return Convert.ToBase64String(encryptbytes);        }            /// 
            /// 将base64格式，转换utf8            /// 
            /// 解密内容            ///             public static string Base64Decode(string content)        {            byte[] bytes = Convert.FromBase64String(content);            return System.Text.Encoding.UTF8.GetString(bytes);        }        /// 
         ///  DES加密数据         /// 
         ///          ///          ///          public static string DESEncryption(string Text, string sKey=null)        {            sKey = sKey ?? "zhiqiang";            try            {                System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider();                byte[] inputByteArray;                inputByteArray = System.Text.Encoding.Default.GetBytes(Text);                string md5SKey = Get32MD5One(sKey).Substring(0, 8);                des.Key = System.Text.ASCIIEncoding.ASCII.GetBytes(md5SKey);                des.IV = System.Text.ASCIIEncoding.ASCII.GetBytes(md5SKey);                System.IO.MemoryStream ms = new System.IO.MemoryStream();                System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);                cs.Write(inputByteArray, 0, inputByteArray.Length);                cs.FlushFinalBlock();                System.Text.StringBuilder ret = new System.Text.StringBuilder();                foreach (byte b in ms.ToArray())                {                    ret.AppendFormat("{0:X2}", b);                }                return ret.ToString();            }catch { return "error"; }        }        /// 
         /// DES解密数据         /// 
         ///          ///          ///          public static string DESDecrypt(string Text, string sKey=null)        {            sKey = sKey ?? "zhiqiang";            try            {                System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.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;                }                string md5SKey = Get32MD5One(sKey).Substring(0, 8);                des.Key = System.Text.ASCIIEncoding.ASCII.GetBytes(md5SKey);                des.IV = System.Text.ASCIIEncoding.ASCII.GetBytes(md5SKey);                System.IO.MemoryStream ms = new System.IO.MemoryStream();                System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateDecryptor(), System.Security.Cryptography.CryptoStreamMode.Write);                cs.Write(inputByteArray, 0, inputByteArray.Length);                cs.FlushFinalBlock();                return System.Text.Encoding.Default.GetString(ms.ToArray());            }catch { return "error"; }        }        /// 
         /// RSA加密数据         /// 
         ///          ///          ///          public static string RSAEncryption(string express, string KeyContainerName = null)        {            System.Security.Cryptography.CspParameters param = new System.Security.Cryptography.CspParameters();            param.KeyContainerName = KeyContainerName ?? "zhiqiang"; //密匙容器的名称，保持加密解密一致才能解密成功            using (System.Security.Cryptography.RSACryptoServiceProvider rsa = new System.Security.Cryptography.RSACryptoServiceProvider(param))            {                byte[] plaindata = System.Text.Encoding.Default.GetBytes(express);//将要加密的字符串转换为字节数组                byte[] encryptdata = rsa.Encrypt(plaindata, false);//将加密后的字节数据转换为新的加密字节数组                return Convert.ToBase64String(encryptdata);//将加密后的字节数组转换为字符串            }        }        /// 
         /// RSA解密数据         /// 
         ///          ///          ///          public static string RSADecrypt(string ciphertext, string KeyContainerName = null)        {            System.Security.Cryptography.CspParameters param = new System.Security.Cryptography.CspParameters();            param.KeyContainerName = KeyContainerName ?? "zhiqiang";            using (System.Security.Cryptography.RSACryptoServiceProvider rsa = new System.Security.Cryptography.RSACryptoServiceProvider(param))            {                byte[] encryptdata = Convert.FromBase64String(ciphertext);                byte[] decryptdata = rsa.Decrypt(encryptdata, false);                return System.Text.Encoding.Default.GetString(decryptdata);            }        }    }

以上就是C#中的常见加密解密类的具体内容，代码详细清楚，如果在日常工作遇到这个问题，希望你能通过这篇文章解决问题。如果想了解更多相关内容，欢迎关注行业资讯频道！