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jmvermeulen/decryptaes.cs

Created January 16, 2019 11:54
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Crypted Java AES decrypt in C#
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decryptaes.cs
private byte[] decryptdata(byte[] bytearraytodecrypt, string key)
{
AesCryptoServiceProvider keydecrypt = new AesCryptoServiceProvider();
keydecrypt.BlockSize = 128;
keydecrypt.KeySize = 256;
keydecrypt.Key = System.Text.Encoding.UTF8.GetBytes(key);
keydecrypt.Padding = PaddingMode.PKCS7;
keydecrypt.Mode = CipherMode.ECB;
ICryptoTransform crypto1 = keydecrypt.CreateDecryptor(keydecrypt.Key, keydecrypt.IV);
byte[] returnbytearray = crypto1.TransformFinalBlock(bytearraytodecrypt, 0, bytearraytodecrypt.Length);
crypto1.Dispose();
return returnbytearray;
}
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jmvermeulen commented Jan 16, 2019

Data AES encrypted in Java with default parameters is not the default used by C#.
This C# settings are compatible with Java defaults.

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