Xbase++

AES Encryption ECB Mode with PKCS7 Padding

See more Encryption Examples

Duplicates the following C# code:

public static byte[] DecryptBySymmetricKey(string encryptedText, byte[] key)
  {
     string keyAsBase64 = Convert.ToBase64String(key);

     byte[] dataToDecrypt = Convert.FromBase64String(encryptedText);
     var keyBytes = key;
     AesManaged tdes = new AesManaged();
     tdes.KeySize = 256;
     tdes.BlockSize = 128;
     tdes.Key = keyBytes;
     tdes.Mode = CipherMode.ECB;
     tdes.Padding = PaddingMode.PKCS7;
     ICryptoTransform decrypt__1 = tdes.CreateDecryptor();
     byte[] deCipher = decrypt__1.TransformFinalBlock(dataToDecrypt, 0, dataToDecrypt.Length);
     tdes.Clear();
     string EK_result = Convert.ToBase64String(deCipher);
     return EK_result;
}

Xbase++

LOCAL oCrypt
LOCAL cKeyAsBase64
LOCAL cEncryptedBytesAsBase64
LOCAL cEK_result

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

oCrypt := CreateObject("Chilkat.Crypt2")

//  In the C# code above that is to be duplicated here, use the base64 encoded key.
cKeyAsBase64 := "..."
cEncryptedBytesAsBase64 := "...."

oCrypt:KeyLength := 256
oCrypt:CryptAlgorithm := "AES"
oCrypt:CipherMode := "ecb"
oCrypt:PaddingScheme := 0
oCrypt:SetEncodedKey(cKeyAsBase64, "base64")

oCrypt:EncodingMode := "base64"

//  Pass the base64 representation of the encrypted data.
//  (The EncodingMode indicates you are passing base64.)
cEK_result := oCrypt:DecryptStringENC(cEncryptedBytesAsBase64)

? cEK_result

oCrypt:destroy()