public void DeriveKey_CreateCommonKeyAndEncryptString_Pass()
{
ECDiffieHellmanAgreement agreement;
byte[] commonKey;
byte[] iv;
string messageFromBob = "Hello my friend, how are you?";
string encrypted;
string decrypted;
using(var alice = new ECDiffieHellmanCipher<ECDiffieHellmanCng>())
{
agreement = alice.Agreement;
using(var bob = new ECDiffieHellmanCipher<ECDiffieHellmanCng>(agreement))
{
commonKey = alice.DeriveKey(bob.PublicKey);
using (var cipher = new SymmetricCipher<AesManaged>(commonKey, out iv))
encrypted = cipher.EncryptToString(messageFromBob);
}
using (var cipher = new SymmetricCipher<AesManaged>(commonKey, iv))
decrypted = cipher.DecryptToString(encrypted);
}
Assert.AreEqual(messageFromBob, decrypted);
}
public void EncryptToString_AesEncryptToStringAndDecryptToString_Pass()
{
string plainText = "Encrypt me but don' forget me.";
string encryptedText;
string decryptedText;
using(var cipher = new SymmetricCipher<AesManaged>("passwd", "mysalt1337"))
{
encryptedText = cipher.EncryptToString(plainText);
decryptedText = cipher.DecryptToString(encryptedText);
}
Assert.AreEqual(plainText, decryptedText);
}
public void AesBasicCipher1_SameInstance_ComparesOutput()
{
string plainText = "Encrypt me but don' forget me.";
byte[] plaindata = Encoding.UTF8.GetBytes(plainText);
string encryptedText;
string decryptedText;
using (var cipher = new SymmetricCipher<AesManaged>("passwd", "mysalt1337"))
{
encryptedText = cipher.EncryptToString(plaindata);
decryptedText = cipher.DecryptToString(encryptedText);
}
Assert.AreEqual(plainText, decryptedText);
}
public void ConstructorWithOutParams_InstantiateNewWithRandomSaltAndIV_Pass()
{
string passwd = "PassIWantt0youS3";
string message = "This is my cool message, you fokkin w0t m8";
string cipherMessage;
string decrypted;
byte[] salt;
byte[] IV;
using (var cipher = new SymmetricCipher<AesManaged>(passwd, out salt, out IV))
{
cipherMessage = cipher.EncryptToString(message);
}
using(var cipher = new SymmetricCipher<AesManaged>(passwd, salt, IV))
{
decrypted = cipher.DecryptToString(cipherMessage);
}
Assert.AreEqual(message, decrypted);
}
public void AesBasicCipher4_SameInstance_ComparesOutput()
{
string plainText = "Encryption is pretty fun";
byte[] plainTextArr = Encoding.UTF8.GetBytes(plainText);
string encryptStr;
byte[] decryptArr;
string decryptStr;
using (var cipher = new SymmetricCipher<AesManaged>("mypasswd2", "mysalt1337bb"))
{
encryptStr = cipher.EncryptToString(plainText);
decryptArr = cipher.Decrypt(encryptStr);
}
decryptStr = Encoding.UTF8.GetString(decryptArr);
Assert.AreEqual(plainText, decryptStr);
}