Encryption.cs
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using System;
using System.Security.Cryptography;
using System.Text;
using Hh.Mes.Common.log;
namespace Hh.Mes.Common
{
public class Encryption
{
private static string encryptKey = "4h!@w$rng,i#$@x1%)5^3(7*5P31/Ee0";
//默认密钥向量
private static byte[] Keys = { 0x41, 0x72, 0x65, 0x79, 0x6F, 0x75, 0x6D, 0x79, 0x53, 0x6E, 0x6F, 0x77, 0x6D, 0x61, 0x6E, 0x3F };
/// <summary>
/// 加密
/// </summary>
/// <param name="encryptString"></param>
/// <returns></returns>
public static string Encrypt(string encryptString)
{
if (string.IsNullOrEmpty(encryptString))
return string.Empty;
RijndaelManaged rijndaelProvider = new RijndaelManaged();
rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32));
rijndaelProvider.IV = Keys;
ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor();
byte[] inputData = Encoding.UTF8.GetBytes(encryptString);
byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length);
return Convert.ToBase64String(encryptedData);
}
/// <summary>
/// 解密
/// </summary>
/// <param name="decryptString"></param>
/// <returns></returns>
public static string Decrypt(string decryptString)
{
if (string.IsNullOrEmpty(decryptString))
return string.Empty;
try
{
RijndaelManaged rijndaelProvider = new RijndaelManaged();
rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32));
rijndaelProvider.IV = Keys;
ICryptoTransform rijndaelDecrypt = rijndaelProvider.CreateDecryptor();
byte[] inputData = Convert.FromBase64String(decryptString);
byte[] decryptedData = rijndaelDecrypt.TransformFinalBlock(inputData, 0, inputData.Length);
return Encoding.UTF8.GetString(decryptedData);
}
catch
{
return "";
}
}
/// <summary>
/// AES加密
/// </summary>
/// <param name="source"></param>
/// <param name="key">密钥</param>
/// <param name="iv">初始向量</param>
/// <param name="padding">填充模式</param>
/// <param name="mode">加密模式</param>
/// <returns></returns>
public static (bool isOk, string text) AESEncrypt(string source, string key, string iv = "", PaddingMode padding = PaddingMode.Zeros, CipherMode mode = CipherMode.CBC)
{
try
{
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
byte[] textBytes = Encoding.UTF8.GetBytes(source);
byte[] ivBytes = Encoding.UTF8.GetBytes(iv);
byte[] useKeyBytes = new byte[16];
byte[] useIvBytes = new byte[16];
Array.Copy(keyBytes, useKeyBytes, keyBytes.Length > useKeyBytes.Length ? useKeyBytes.Length : keyBytes.Length);
Array.Copy(ivBytes, useIvBytes, ivBytes.Length > useIvBytes.Length ? useIvBytes.Length : ivBytes.Length);
Aes aes = System.Security.Cryptography.Aes.Create();
aes.KeySize = 256;//秘钥的大小，以位为单位,128,256等
aes.BlockSize = 128;//支持的块大小
aes.Padding = padding;//填充模式
aes.Mode = mode;
aes.Key = useKeyBytes;
aes.IV = useIvBytes;//初始化向量，如果没有设置默认的16个0
ICryptoTransform cryptoTransform = aes.CreateEncryptor();
byte[] resultBytes = cryptoTransform.TransformFinalBlock(textBytes, 0, textBytes.Length);
return (true, Convert.ToBase64String(resultBytes));
}
catch (Exception ex)
{
return (false, ex.Message);
}
}
/// <summary>
/// AES解密
/// </summary>
/// <param name="source"></param>
/// <param name="key">密钥</param>
/// <param name="iv">初始向量</param>
/// <param name="padding">填充模式</param>
/// <param name="mode">加密模式</param>
/// <returns></returns>
public static (bool isOk, string text) AESDecrypt(string source, string key, string iv = "", PaddingMode padding = PaddingMode.Zeros, CipherMode mode = CipherMode.CBC)
{
try
{
byte[] textBytes = Convert.FromBase64String(source);
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
byte[] ivBytes = Encoding.UTF8.GetBytes(iv);
byte[] useKeyBytes = new byte[16];
byte[] useIvBytes = new byte[16];
Array.Copy(keyBytes, useKeyBytes, keyBytes.Length > useKeyBytes.Length ? useKeyBytes.Length : keyBytes.Length);
Array.Copy(ivBytes, useIvBytes, ivBytes.Length > useIvBytes.Length ? useIvBytes.Length : ivBytes.Length);
Aes aes = Aes.Create();
aes.KeySize = 256;//秘钥的大小，以位为单位,128,256等
aes.BlockSize = 128;//支持的块大小
aes.Padding = padding;//填充模式
aes.Mode = mode;
aes.Key = useKeyBytes;
aes.IV = useIvBytes;//初始化向量，如果没有设置默认的16个0
ICryptoTransform decryptoTransform = aes.CreateDecryptor();
byte[] resultBytes = decryptoTransform.TransformFinalBlock(textBytes, 0, textBytes.Length);
return (true, Encoding.UTF8.GetString(resultBytes).Replace("\0", ""));
}
catch (Exception ex)
{
Log4NetHelper.Instance.Error("【AESDecrypt】" + ex.Message);
return (false, ex.Message);
}
}
}
}