一部のテキストに AES 暗号化を使用しようとしていますが、復号化されたテキストは元のテキストと同一ではありません。
- 原文:
abcd
- 復号化されたテキスト:
?9T?o??G???x;*
これが私のコードです:
public static void Main(string[] args)
{
byte[] original = { 97, 98, 99, 100 }; //"abcd"
byte[] key = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
byte[] iv = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
byte[] encrypt = Encrypt(original, key, iv);
byte[] decrypt = Decrypt(encrypt, key, iv);
Console.WriteLine(Encoding.UTF8.GetString(original));
Console.WriteLine(Encoding.UTF8.GetString(decrypt));
Console.ReadKey();
}
public static byte[] Encrypt(byte[] original, byte[] key, byte[] iv)
{
using (var memoryStream = new MemoryStream())
{
using (var aes = new AesManaged { Key = key, IV = iv, Padding = PaddingMode.PKCS7, Mode = CipherMode.CBC })
{
using (var cryptoStream = new CryptoStream(memoryStream, aes.CreateEncryptor(), CryptoStreamMode.Write))
{
cryptoStream.Write(original, 0, original.Length);
}
}
return memoryStream.ToArray();
}
}
public static byte[] Decrypt(byte[] encrypt, byte[] key, byte[] iv)
{
using (var memoryStream = new MemoryStream(encrypt))
{
using (var aes = new AesManaged { Key = key, IV = iv, Padding = PaddingMode.PKCS7, Mode = CipherMode.CBC })
{
using (var cryptoStream = new CryptoStream(memoryStream, aes.CreateEncryptor(), CryptoStreamMode.Read))
{
byte[] decrypt = new byte[encrypt.Length];
cryptoStream.Read(decrypt, 0, decrypt.Length);
return decrypt;
}
}
}
}
どうしたの?前もって感謝します。