public void TestFullrun()
{
const string messageToEncrypt = "Important important!";
byte[] dataToEncrypt = Encoding.UTF8.GetBytes(messageToEncrypt);
var hybridEncryper = new HybridRsaAes();
hybridEncryper.AssignNewRSAKeys();
RSAParameters publicKey = hybridEncryper.GetPublicRSAKey(); //public key receiver
RSAParameters privateKey = hybridEncryper.GetPrivateRSAKey(); //private key receiver
//Encrypt
byte[] sessionKey = AbstractSecureCompareBase.GenerateRandomNumber(32); //256-bit
byte[] iv = AbstractSecureCompareBase.GenerateRandomNumber(16); //128-bit
byte[] encryptedData = hybridEncryper.EncryptAES(dataToEncrypt, sessionKey, iv);
byte[] hmac = hybridEncryper.ComputeHmac(sessionKey, encryptedData);
byte[] encryptedSessionKey = hybridEncryper.EncryptRSA(sessionKey, publicKey);
//sending encrpyted file....(encryptedData, iv, hmac, encryptedSessionKey)
//Decrypt
byte[] decryptedSessionKey = hybridEncryper.DecryptRSA(encryptedSessionKey, privateKey);
Assert.IsTrue(hybridEncryper.VerifyHmac(decryptedSessionKey, encryptedData, hmac));
byte[] decryptedData = hybridEncryper.DecryptAES(encryptedData, decryptedSessionKey, iv);
Assert.IsTrue(Encoding.UTF8.GetString(decryptedData) == messageToEncrypt);
}
public void GeSingleByName()
{
List<Contact> contacts = _dataAccess.GetAll<Contact>();
Assert.IsTrue(contacts.Count == 0);
List<MasterLogin> masterLogins = _dataAccess.GetAll<MasterLogin>();
Assert.IsTrue(masterLogins.Count == 0);
var hybridEncrypter = new HybridRsaAes();
hybridEncrypter.AssignNewRSAKeys();
var contact = new Contact
{
Name = "Marcel",
PublicKey = hybridEncrypter.GetPublicRSAKey()
};
_dataAccess.Insert(contact);
hybridEncrypter.AssignNewRSAKeys();
var contact2 = new Contact
{
Name = "Mario",
PublicKey = hybridEncrypter.GetPublicRSAKey()
};
_dataAccess.Insert(contact2);
contacts = _dataAccess.GetAll<Contact>();
Assert.IsTrue(contacts.Count == 2);
var contact3 = _dataAccess.GetSingleByName<Contact>("Marcel");
Assert.IsTrue(contact3 != null);
Assert.IsTrue(contact3.Name == "Marcel");
var salt = PBKDF2Impl.GenerateSalt();
hybridEncrypter = new HybridRsaAes();
hybridEncrypter.AssignNewRSAKeys();
var materLogin = new MasterLogin
{
Name = "MasterMan",
Password = PBKDF2Impl.HashPassword(Encoding.UTF8.GetBytes("password123"), salt),
Salt = salt,
PrivateKey = hybridEncrypter.GetPrivateRSAKeyAsXml(),
PublicKey = hybridEncrypter.GetPublicRSAKey()
};
_dataAccess.Insert(materLogin);
masterLogins = _dataAccess.GetAll<MasterLogin>();
Assert.IsTrue(masterLogins.Count == 1);
var materLogin2 = _dataAccess.GetSingleByName<MasterLogin>("MasterMan");
Assert.IsTrue(materLogin2 != null);
Assert.IsTrue(materLogin2.Name == "MasterMan");
}
public void TestConvertPublicKey()
{
var hybridEncryper = new HybridRsaAes();
hybridEncryper.AssignNewRSAKeys();
string keyString = hybridEncryper.GetPublicRSAKeyAsXml();
//sending public key string to friend....
var rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(keyString);
Assert.IsTrue(hybridEncryper.GetPublicRSAKeyAsXml() == rsa.ToXmlString(false));
}
public void TestFullrunWithKeyShare()
{
const string messageToEncrypt = "Important important!";
byte[] dataToEncrypt = Encoding.UTF8.GetBytes(messageToEncrypt);
var hybridEncryper = new HybridRsaAes();
hybridEncryper.AssignNewRSAKeys();
string keyString = hybridEncryper.GetPublicRSAKeyAsXml();
//sending public key string to friend....
var rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(keyString);
Assert.IsTrue(hybridEncryper.GetPublicRSAKeyAsXml() == rsa.ToXmlString(false));
//Encrypt
RSAParameters publicKey = rsa.ExportParameters(false); //public key receiver
byte[] sessionKey = AbstractSecureCompareBase.GenerateRandomNumber(32); //256-bit
byte[] iv = AbstractSecureCompareBase.GenerateRandomNumber(16); //128-bit
byte[] encryptedData = hybridEncryper.EncryptAES(dataToEncrypt, sessionKey, iv);
byte[] hmac = hybridEncryper.ComputeHmac(sessionKey, encryptedData);
byte[] encryptedSessionKey = hybridEncryper.EncryptRSA(sessionKey, publicKey);
//sending encrpyted file....(encryptedData, iv, hmac, encryptedSessionKey)
//Decrypt
RSAParameters privateKey = hybridEncryper.GetPrivateRSAKey(); //private key receiver
byte[] decryptedSessionKey = hybridEncryper.DecryptRSA(encryptedSessionKey, privateKey);
Assert.IsTrue(hybridEncryper.VerifyHmac(decryptedSessionKey, encryptedData, hmac));
byte[] decryptedData = hybridEncryper.DecryptAES(encryptedData, decryptedSessionKey, iv);
Assert.IsTrue(Encoding.UTF8.GetString(decryptedData) == messageToEncrypt);
}
public void Update()
{
List<Contact> contacts = _dataAccess.GetAll<Contact>();
Assert.IsTrue(contacts.Count == 0);
var hybridEncrypter = new HybridRsaAes();
hybridEncrypter.AssignNewRSAKeys();
var contact = new Contact
{
Name = "Marcel",
PublicKey = hybridEncrypter.GetPublicRSAKey()
};
_dataAccess.Insert(contact);
contacts = _dataAccess.GetAll<Contact>();
Assert.IsTrue(contacts.Count == 1);
Contact contact2 = contacts[0];
hybridEncrypter.AssignNewRSAKeys();
contact2.Name = "Marcel.Elz";
contact2.PublicKey = hybridEncrypter.GetPublicRSAKey();
_dataAccess.Update(contact2);
contacts = _dataAccess.GetAll<Contact>();
Assert.IsTrue(contacts.Count == 1);
Assert.IsTrue(contacts[0].Name == "Marcel.Elz");
}
public CryptographyService()
{
_hybridEncrypter = new HybridRsaAes();
}
