public IActionResult TestAsymmetric()
{
var asykeys = Encryption.GenerateAsymmetricKey();
var symmkeys = Encryption.GenerateSymmetricKeys();
MemoryStream msIn = new MemoryStream(symmkeys.Key); msIn.Position = 0;
MemoryStream encryptedSymmetricKey = Encryption.AsymmetricEncrypt(msIn, asykeys.PublicKey);
MemoryStream decryptedSymmetricKey = Encryption.AsymmetricDecrypt(encryptedSymmetricKey, asykeys.PrivateKey);
return(Content("success"));
}
public IActionResult Index()
{
var asymmetricKeys = Encryption.GenerateAsymmetricKeys();
//signing of data upload.....
string originaldata = "hello world";
MemoryStream msIn = new MemoryStream(Encoding.UTF32.GetBytes(originaldata));
msIn.Position = 0;
string signature = Encryption.SignData(msIn, asymmetricKeys.PrivateKey);
//while it was stored on the server someone tampered with the data
originaldata = "Hello world";
//download.....
MemoryStream msIn2 = new MemoryStream(Encoding.UTF32.GetBytes(originaldata));
msIn2.Position = 0;
bool result = Encryption.VerifyData(msIn2, asymmetricKeys.PublicKey, signature);
//string cipher = Encryption.SymmetricEncrypt("this is a text which i would like to encrypt");
//string originalString = Encryption.SymmetricDecrypt(cipher);
//aGVsbG8gd29ybGQ=
var cipher = Encryption.AsymmetricEncrypt("aGVsbG8gd29ybGQ=", asymmetricKeys.PublicKey);
var originalText = Encryption.AsymmetricDecrypt(cipher, asymmetricKeys.PrivateKey);
return(View());
}
