45 lines
1.5 KiB
C#
45 lines
1.5 KiB
C#
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 OssTJiaUploaderService
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{
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public static class CryptoHelper
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{
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private static readonly string _key = EnvReader.GetMachineVariable("ENC_AES_KEY");
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private static readonly string _iv = EnvReader.GetMachineVariable("ENC_AES_IV");
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public static string Decrypt(string input)
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{
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if (!input.StartsWith("ENC(") || !input.EndsWith(")"))
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return input;
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var base64 = input[4..^1];
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using var aes = Aes.Create();
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aes.Key = Encoding.UTF8.GetBytes(_key);
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aes.IV = Encoding.UTF8.GetBytes(_iv);
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var decryptor = aes.CreateDecryptor();
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var buffer = Convert.FromBase64String(base64);
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var result = decryptor.TransformFinalBlock(buffer, 0, buffer.Length);
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return Encoding.UTF8.GetString(result);
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}
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public static string Encrypt(string plainText)
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{
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using var aes = Aes.Create();
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aes.Key = Encoding.UTF8.GetBytes(_key);
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aes.IV = Encoding.UTF8.GetBytes(_iv);
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var encryptor = aes.CreateEncryptor();
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var bytes = Encoding.UTF8.GetBytes(plainText);
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var encrypted = encryptor.TransformFinalBlock(bytes, 0, bytes.Length);
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return $"ENC({Convert.ToBase64String(encrypted)})";
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}
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}
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}
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