C# – 筚路蓝缕

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Web.Security;
 
namespace HuaTong.General.Utility
{
    /// <summary>
    /// 加密工具类
    /// </summary>
    public class EncryptHelper
    {
        //默认密钥
        private static string AESKey = "[45/*YUIdse..e;]";
        private static string DESKey = "[&HdN72]";
 
        /// <summary> 
        /// AES加密 
        /// </summary>
        public static string AESEncrypt(string value, string _aeskey = null)
        {
            if (string.IsNullOrEmpty(_aeskey))
            {
                _aeskey = AESKey;
            }
 
            byte[] keyArray = Encoding.UTF8.GetBytes(_aeskey);
            byte[] toEncryptArray = Encoding.UTF8.GetBytes(value);
 
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.Mode = CipherMode.ECB;
            rDel.Padding = PaddingMode.PKCS7;
 
            ICryptoTransform cTransform = rDel.CreateEncryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }
 
        /// <summary> 
        /// AES解密 
        /// </summary>
        public static string AESDecrypt(string value, string _aeskey = null)
        {
            try
            {
                if (string.IsNullOrEmpty(_aeskey))
                {
                    _aeskey = AESKey;
                }
                byte[] keyArray = Encoding.UTF8.GetBytes(_aeskey);
                byte[] toEncryptArray = Convert.FromBase64String(value);
 
                RijndaelManaged rDel = new RijndaelManaged();
                rDel.Key = keyArray;
                rDel.Mode = CipherMode.ECB;
                rDel.Padding = PaddingMode.PKCS7;
 
                ICryptoTransform cTransform = rDel.CreateDecryptor();
                byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
                return Encoding.UTF8.GetString(resultArray);
            }
            catch
            {
                return string.Empty;
            }
        }
 
        /// <summary> 
        /// DES加密 
        /// </summary>
        public static string DESEncrypt(string value, string _deskey = null)
        {
            if (string.IsNullOrEmpty(_deskey))
            {
                _deskey = DESKey;
            }
 
            byte[] keyArray = Encoding.UTF8.GetBytes(_deskey);
            byte[] toEncryptArray = Encoding.UTF8.GetBytes(value);
 
            DESCryptoServiceProvider rDel = new DESCryptoServiceProvider();
            rDel.Key = keyArray;
            rDel.Mode = CipherMode.ECB;
            rDel.Padding = PaddingMode.PKCS7;
 
            ICryptoTransform cTransform = rDel.CreateEncryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }
 
        /// <summary> 
        /// DES解密 
        /// </summary>
        public static string DESDecrypt(string value, string _deskey = null)
        {
            try
            {
                if (string.IsNullOrEmpty(_deskey))
                {
                    _deskey = DESKey;
                }
                byte[] keyArray = Encoding.UTF8.GetBytes(_deskey);
                byte[] toEncryptArray = Convert.FromBase64String(value);
 
                DESCryptoServiceProvider rDel = new DESCryptoServiceProvider();
                rDel.Key = keyArray;
                rDel.Mode = CipherMode.ECB;
                rDel.Padding = PaddingMode.PKCS7;
 
                ICryptoTransform cTransform = rDel.CreateDecryptor();
                byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
                return Encoding.UTF8.GetString(resultArray);
            }
            catch
            {
                return string.Empty;
            }
        }
 
        public static string MD5(string value)
        {
            byte[] result = Encoding.UTF8.GetBytes(value);
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] output = md5.ComputeHash(result);
            return BitConverter.ToString(output).Replace("-", "");
        }
 
        public static string HMACMD5(string value, string hmacKey)
        {
            HMACSHA1 hmacsha1 = new HMACSHA1(Encoding.UTF8.GetBytes(hmacKey));
            byte[] result = System.Text.Encoding.UTF8.GetBytes(value);
            byte[] output = hmacsha1.ComputeHash(result);
 
             
            return BitConverter.ToString(output).Replace("-", "");
        }
 
        /// <summary>
        /// base64编码
        /// </summary>
        /// <returns></returns>
        public static string Base64Encode(string value)
        {
            string result = Convert.ToBase64String(Encoding.Default.GetBytes(value));
            return result;
        }
        /// <summary>
        /// base64解码
        /// </summary>
        /// <returns></returns>
        public static string Base64Decode(string value)
        {
            string result = Encoding.Default.GetString(Convert.FromBase64String(value));
            return result;
        }
 
 
    }
}

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using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Security.Cryptography;

using System.Text;

using System.Text.RegularExpressions;

using System.Web.Security;

namespace HuaTong.General.Utility

{

/// <summary>

/// 加密工具类

/// </summary>

public class EncryptHelper

{

//默认密钥

private static string AESKey = "[45/*YUIdse..e;]";

private static string DESKey = "[&HdN72]";

/// <summary>

/// AES加密

/// </summary>

public static string AESEncrypt(string value, string _aeskey = null)

{

if (string.IsNullOrEmpty(_aeskey))

{

_aeskey = AESKey;

}

byte[] keyArray = Encoding.UTF8.GetBytes(_aeskey);

byte[] toEncryptArray = Encoding.UTF8.GetBytes(value);

RijndaelManaged rDel = new RijndaelManaged();

rDel.Key = keyArray;

rDel.Mode = CipherMode.ECB;

rDel.Padding = PaddingMode.PKCS7;

ICryptoTransform cTransform = rDel.CreateEncryptor();

byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

return Convert.ToBase64String(resultArray, 0, resultArray.Length);

}

/// <summary>

/// AES解密

/// </summary>

public static string AESDecrypt(string value, string _aeskey = null)

{

try

{

if (string.IsNullOrEmpty(_aeskey))

{

_aeskey = AESKey;

}

byte[] keyArray = Encoding.UTF8.GetBytes(_aeskey);

byte[] toEncryptArray = Convert.FromBase64String(value);

RijndaelManaged rDel = new RijndaelManaged();

rDel.Key = keyArray;

rDel.Mode = CipherMode.ECB;

rDel.Padding = PaddingMode.PKCS7;

ICryptoTransform cTransform = rDel.CreateDecryptor();

byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

return Encoding.UTF8.GetString(resultArray);

}

catch

{

return string.Empty;

}

/// <summary>

/// DES加密

/// </summary>

public static string DESEncrypt(string value, string _deskey = null)

{

if (string.IsNullOrEmpty(_deskey))

{

_deskey = DESKey;

}

byte[] keyArray = Encoding.UTF8.GetBytes(_deskey);

byte[] toEncryptArray = Encoding.UTF8.GetBytes(value);

DESCryptoServiceProvider rDel = new DESCryptoServiceProvider();

rDel.Key = keyArray;

rDel.Mode = CipherMode.ECB;

rDel.Padding = PaddingMode.PKCS7;

ICryptoTransform cTransform = rDel.CreateEncryptor();

byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

return Convert.ToBase64String(resultArray, 0, resultArray.Length);

}

/// <summary>

/// DES解密

/// </summary>

public static string DESDecrypt(string value, string _deskey = null)

{

try

{

if (string.IsNullOrEmpty(_deskey))

{

_deskey = DESKey;

}

byte[] keyArray = Encoding.UTF8.GetBytes(_deskey);

byte[] toEncryptArray = Convert.FromBase64String(value);

DESCryptoServiceProvider rDel = new DESCryptoServiceProvider();

rDel.Key = keyArray;

rDel.Mode = CipherMode.ECB;

rDel.Padding = PaddingMode.PKCS7;

ICryptoTransform cTransform = rDel.CreateDecryptor();

byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

return Encoding.UTF8.GetString(resultArray);

}

catch

{

return string.Empty;

}

public static string MD5(string value)

{

byte[] result = Encoding.UTF8.GetBytes(value);

MD5 md5 = new MD5CryptoServiceProvider();

byte[] output = md5.ComputeHash(result);

return BitConverter.ToString(output).Replace("-", "");

}

public static string HMACMD5(string value, string hmacKey)

{

HMACSHA1 hmacsha1 = new HMACSHA1(Encoding.UTF8.GetBytes(hmacKey));

byte[] result = System.Text.Encoding.UTF8.GetBytes(value);

byte[] output = hmacsha1.ComputeHash(result);

return BitConverter.ToString(output).Replace("-", "");

}

/// <summary>

/// base64编码

/// </summary>

/// <returns></returns>

public static string Base64Encode(string value)

{

string result = Convert.ToBase64String(Encoding.Default.GetBytes(value));

return result;

}

/// <summary>

/// base64解码

/// </summary>

/// <returns></returns>

public static string Base64Decode(string value)

{

string result = Encoding.Default.GetString(Convert.FromBase64String(value));

return result;

}

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