public IActionResult ReceiveMessage(SendMessageModel messageModel)
{
string filePublicKey = parameters.Value.FilesOutput + parameters.Value.PubKeyFile + messageModel.userNameDestination + messageModel.userNameOrigin;
RSAEncryption rsaEncryption = new RSAEncryption();
AESEncryption aesEncryption = new AESEncryption();
RSASigning rsaSigning = new RSASigning();
//Decrypt symmetric key
ResponseRSADecryption rsaDecryptResponse = new ResponseRSADecryption();
rsaDecryptResponse = rsaEncryption.DecryptAESKey(messageModel.encryptedKey, messageModel.userNameDestination + messageModel.userNameOrigin);
if (!rsaDecryptResponse.result)
{
FileWriter.WriteOnEvents(EventLevel.Error, "Error descifrando llave AES con RSA.");
return(BadRequest(new { result = false }));
}
//Decrypt Message
ResponseAESDecryption responseAESDecryption = new ResponseAESDecryption();
responseAESDecryption = aesEncryption.DecryptMessage(messageModel, rsaDecryptResponse.decryptedKey);
if (!responseAESDecryption.result)
{
FileWriter.WriteOnEvents(EventLevel.Error, "Error descifrando mensaje con AES.");
return(BadRequest(new { result = false }));
}
//Validate Sign
if (!rsaSigning.validateSignAndHash(responseAESDecryption.decryptedMessage, messageModel.encryptSignature, filePublicKey))
{
FileWriter.WriteOnEvents(EventLevel.Atention, "La información recibida es corrupta.");
return(BadRequest(new { result = false }));
}
//Muestra mensaje
return(Ok(new{ mensaje = responseAESDecryption.decryptedMessage }));
}