44 lines
1.2 KiB
C#
44 lines
1.2 KiB
C#
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using System.Security.Cryptography;
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namespace MinecraftDiscordBot;
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public class AesCipher : ICipher {
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private readonly byte[] key;
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private readonly byte[] iv;
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public AesCipher() {
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using var aes = Aes.Create();
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aes.GenerateKey();
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aes.GenerateIV();
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key = aes.Key;
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iv = aes.IV;
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}
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public byte[] Encrypt(byte[] plain) {
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using var aes = Aes.Create();
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aes.Key = key;
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aes.IV = iv;
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var transformer = aes.CreateEncryptor();
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using var ms = new MemoryStream();
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using (var cs = new CryptoStream(ms, transformer, CryptoStreamMode.Write))
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cs.Write(plain);
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return ms.ToArray();
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}
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public byte[] Decrypt(byte[] cipher) {
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using Aes aes = Aes.Create();
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aes.Key = key;
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aes.IV = iv;
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var transformer = aes.CreateDecryptor();
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using MemoryStream ms = new MemoryStream(cipher);
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using CryptoStream cs = new CryptoStream(ms, transformer, CryptoStreamMode.Read);
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using MemoryStream os = new MemoryStream();
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cs.CopyTo(os);
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return os.ToArray();
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}
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}
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public interface ICipher {
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byte[] Decrypt(byte[] cipher);
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byte[] Encrypt(byte[] plain);
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}
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