AES encryption and decryption


More

I quickly wrote an application where I need AES encryption and decryption functionality, I received encrypted data from another .Net solution, but I couldn't find a solution.

Here is my .net encryption:

 public static byte[] AES_Encrypt(byte[] bytesToBeEncrypted, byte[] passwordBytes)
    {
        byte[] encryptedBytes = null;

        byte[] saltBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };

        using (MemoryStream ms = new MemoryStream())
        {
            using (RijndaelManaged AES = new RijndaelManaged())
            {
                AES.KeySize = 256;
                AES.BlockSize = 128;

                var key = new Rfc2898DeriveBytes(passwordBytes, saltBytes, 1000);
                AES.Key = key.GetBytes(AES.KeySize / 8);
                AES.IV = key.GetBytes(AES.BlockSize / 8);

                AES.Mode = CipherMode.CBC;

                using (var cs = new CryptoStream(ms, AES.CreateEncryptor(), CryptoStreamMode.Write))
                {
                    cs.Write(bytesToBeEncrypted, 0, bytesToBeEncrypted.Length);
                    cs.Close();
                }
                encryptedBytes = ms.ToArray();
            }
        }

        return encryptedBytes;
    }

I need swift decrypt function.

More

I found the solution, it's a good library.

Cross-platform 256-bit AES encryption/decryption.

This project contains an implementation of 256-bit AES encryption that works on all platforms (C#, iOS, Android). One of the key goals is to make AES work on all platforms with a simple implementation.

Supported platforms: iOS, Android, Windows (C#).

https://github.com/Pakhee/Cross-platform-AES-encryption

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