I have been working to decrypt whether it is AES Rijndael or Tripple DES .net encrypted data with flex action script as3crpto encryption library by hurlant that could be found and downloaded from here
.Net C# Code
public string Encrypt() { byte[] keyArray; // path of file to encrypt byte[] toEncryptArray = File.ReadAllBytes(txt_FilePath.Text); string key = "e6408bb8610466fe67d46357f9445f2b"; keyArray = UTF8Encoding.UTF8.GetBytes(key); System.Security.Cryptography.RijndaelManaged aes = new RijndaelManaged(); //set the secret key algorithm aes.Key = keyArray; //mode of operation. there are other 4 modes. We choose ECB(Electronic code Book) aes.Mode = CipherMode.ECB; ICryptoTransform cTransform = aes.CreateEncryptor(); //transform the specified region of bytes array to resultArray byte[] resultArray = cTransform.TransformFinalBlock (toEncryptArray, 0, toEncryptArray.Length); //Release resources held aes.Clear(); //Return the encrypted data into unreadable string format return UTF8Encoding.UTF8.GetString(resultArray); } //*******Decryption********* public string Decrypt() { byte[] keyArray; //get the byte code of the string byte[] toEncryptArray = File.ReadAllBytes(txt_FilePath.Text); string key = "e6408bb8610466fe67d46357f9445f2b"; keyArray = UTF8Encoding.UTF8.GetBytes(key); System.Security.Cryptography.RijndaelManaged aes = new RijndaelManaged(); //set the secret key for algorithm aes.Key = keyArray; //mode of operation. there are other 4 modes. //We choose ECB(Electronic code Book) aes.Mode = CipherMode.ECB; ICryptoTransform cTransform = aes.CreateDecryptor(); byte[] resultArray = cTransform.TransformFinalBlock (toEncryptArray, 0, toEncryptArray.Length); //Release resources held by Encryptor aes.Clear(); return UTF8Encoding.UTF8.GetString(resultArray); }
Flex/Air Code
public function encrypt(filePath:String,encryptKey:String):ByteArray { var fileToEncrypt:ByteArray; try{ var file:File = File.desktopDirectory.resolvePath(filePath); fileToEncrypt= new ByteArray(); var stream:FileStream = new FileStream(); stream.open( file, FileMode.READ); stream.readBytes(fileToEncrypt); stream.close(); var key:ByteArray = Hex.toArray(Hex.fromString(encryptKey)); var aes:ICipher = Crypto.getCipher("aes-ecb", key, new PKCS5); aes.encrypt(fileToEncrypt); }catch (error:Error){return "";} return fileToEncrypt; } //*******Decryption********* public function decrypt(filePath:String,encryptKey:String):ByteArray { var fileToDecrypt:ByteArray; try{ var file:File = File.desktopDirectory.resolvePath(filePath); fileToDecrypt = new ByteArray(); var stream:FileStream = new FileStream(); stream.open( file, FileMode.READ); stream.readBytes(fileToDecrypt); stream.close(); var key:ByteArray = Hex.toArray(Hex.fromString(encryptKey)); var aes:ICipher = Crypto.getCipher("aes-ecb", key, new PKCS5); aes.decrypt(fileToDecrypt); }catch (error:Error){return "";} return fileToDecrypt; }
its cool man … can i post it on my blog too?