using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading.Tasks;
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namespace LB_SmartVisionCommon
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{
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/// <summary>
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/// AES加密/解密
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/// </summary>
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public class AESHelper
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{
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private static readonly byte[] Key = Encoding.UTF8.GetBytes("SHANGHAILANBAOSHANGHAILANBAO1234"); // 32字节
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private static readonly byte[] IV = Encoding.UTF8.GetBytes("LANBAO1234567890"); // 16字节
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/// <summary>
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/// AES加密
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/// </summary>
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/// <param name="plainText">待加密文字</param>
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/// <returns>加密后文字</returns>
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public static string Encrypt(string plainText)
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{
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using (Aes aes = Aes.Create())
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{
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aes.Key = Key;
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aes.IV = IV;
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ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
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using (MemoryStream ms = new MemoryStream())
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using (CryptoStream cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write))
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{
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using (StreamWriter sw = new StreamWriter(cs))
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{
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sw.Write(plainText);
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}
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return Convert.ToBase64String(ms.ToArray());
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}
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}
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}
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/// <summary>
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/// AES解密
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/// </summary>
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/// <param name="cipherText">待解密文字</param>
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/// <returns>解密后文字</returns>
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public static string Decrypt(string cipherText)
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{
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using (Aes aes = Aes.Create())
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{
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aes.Key = Key;
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aes.IV = IV;
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ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);
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using (MemoryStream ms = new MemoryStream(Convert.FromBase64String(cipherText)))
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using (CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read))
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using (StreamReader sr = new StreamReader(cs))
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{
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return sr.ReadToEnd();
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}
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}
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}
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}
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}
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