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(Unicode C) AES Encryption ECB Mode with PKCS7 PaddingDuplicates 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; }
#include <C_CkCrypt2W.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *keyAsBase64; const wchar_t *encryptedBytesAsBase64; const wchar_t *EK_result; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. crypt = CkCrypt2W_Create(); // In the C# code above that is to be duplicated here, use the base64 encoded key. keyAsBase64 = L"..."; encryptedBytesAsBase64 = L"...."; CkCrypt2W_putKeyLength(crypt,256); CkCrypt2W_putCryptAlgorithm(crypt,L"AES"); CkCrypt2W_putCipherMode(crypt,L"ecb"); CkCrypt2W_putPaddingScheme(crypt,0); CkCrypt2W_SetEncodedKey(crypt,keyAsBase64,L"base64"); CkCrypt2W_putEncodingMode(crypt,L"base64"); // Pass the base64 representation of the encrypted data. // (The EncodingMode indicates you are passing base64.) EK_result = CkCrypt2W_decryptStringENC(crypt,encryptedBytesAsBase64); wprintf(L"%s\n",EK_result); CkCrypt2W_Dispose(crypt); } |
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