public MessageModel Decrypt(MessageModel model)
{
Log.Information("");
Log.Information("Starting decryptation...");
Log.Information($"Decrypt message: {model.Message}");
var keyArr = Encoding.UTF8.GetBytes(model.CryptoKey);
var encrypted = Convert.FromBase64String(model.Message);
var json = "";
using (var aesAlg = Aes.Create())
{
aesAlg.Key = keyArr;
aesAlg.IV = new byte[16];
Log.Information("Creating AES decryptor...");
var decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
Log.Information("Decrypting...");
using (var msDecrypt = new MemoryStream(encrypted))
using (var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
using (var srDecrypt = new StreamReader(csDecrypt))
json = srDecrypt.ReadToEnd();
}
Log.Information($"Decrypted: {json}");
return(MessageModel.Factor(json));
}
public void Decrypted_Correct()
{
this.model = MessageModel.Factor("de3ryCD58+yiZAR7YKR0nA==", "1234567890123456", "0000000000000000");
var decryptedModel = this.encryptationService.Decrypt(model);
Assert.True(decryptedModel.Message == "message");
}
public MessageModel Encrypt(MessageModel model)
{
Log.Information("");
Log.Information("Starting encryptation...");
Log.Information($"Encrypt message: {model.Message}");
var keyArr = Encoding.UTF8.GetBytes(model.CryptoKey);
byte[] encrypted;
var jsonCrip = "";
using (var aesAlg = Aes.Create())
{
aesAlg.Key = keyArr;
aesAlg.IV = new byte[16];
Log.Information("Creating AES encryptor...");
var encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
Log.Information("Encrypting...");
using (var msEncrypt = new MemoryStream())
using (var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (var swEncrypt = new StreamWriter(csEncrypt))
swEncrypt.Write(model.Message);
encrypted = msEncrypt.ToArray();
}
}
jsonCrip = Convert.ToBase64String(encrypted);
Log.Information($"Encrypted: {jsonCrip}");
return(MessageModel.Factor(jsonCrip));
}
public EncryptationTest()
{
this.encryptationService = new EncryptationService();
this.model = MessageModel.Factor("message", "1234567890123456", "0000000000000000");
}