81 lines
2.7 KiB
C#
81 lines
2.7 KiB
C#
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namespace ZhiYi.Core.Application.Shared
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{
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public class EncryptProvider
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{
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/// <summary>
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/// AES 加密
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/// </summary>
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/// <param name="data">Raw data</param>
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/// <param name="key">Key, requires 32 bits</param>
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/// <returns>Encrypted string</returns>
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public string AESEncrypt(string data, string key)
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{
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using MemoryStream memory = new MemoryStream();
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using Aes aes = Aes.Create();
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byte[] plainBytes = Encoding.UTF8.GetBytes(data);
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byte[] bKey = new byte[32];
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Array.Copy(Encoding.UTF8.GetBytes(key.PadRight(bKey.Length)), bKey, bKey.Length);
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aes.Mode = CipherMode.ECB;
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aes.Padding = PaddingMode.PKCS7;
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aes.KeySize = 256;
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aes.Key = bKey;
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using CryptoStream cryptoStream = new CryptoStream(memory, aes.CreateEncryptor(), CryptoStreamMode.Write);
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try
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{
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cryptoStream.Write(plainBytes, 0, plainBytes.Length);
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cryptoStream.FlushFinalBlock();
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return Convert.ToBase64String(memory.ToArray());
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}
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catch
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{
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throw;
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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="data">Encrypted data</param>
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/// <param name="key">Key, requires 32 bits</param>
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/// <returns>Decrypted string</returns>
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public string AESDecrypt(string data, string key)
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{
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byte[] encryptedBytes = Convert.FromBase64String(data);
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byte[] bKey = new byte[32];
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Array.Copy(Encoding.UTF8.GetBytes(key.PadRight(bKey.Length)), bKey, bKey.Length);
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try
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{
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byte[]? decryptedData = null; // decrypted data
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using MemoryStream memory = new MemoryStream(encryptedBytes);
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using Aes aes = Aes.Create();
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aes.Mode = CipherMode.ECB;
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aes.Padding = PaddingMode.PKCS7;
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aes.KeySize = 256;
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aes.Key = bKey;
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using CryptoStream decryptor = new CryptoStream(memory, aes.CreateDecryptor(), CryptoStreamMode.Read);
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using MemoryStream tempMemory = new MemoryStream();
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byte[] buffer = new byte[1024];
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int readBytes = 0;
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while ((readBytes = decryptor.Read(buffer, 0, buffer.Length)) > 0)
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{
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tempMemory.Write(buffer, 0, readBytes);
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}
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decryptedData = tempMemory.ToArray();
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return Encoding.UTF8.GetString(decryptedData);
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}
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catch
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{
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throw;
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}
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}
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}
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}
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