Curve25519.NetCore

Updated version of this project!

An elliptic curve offering 128 bits of security and designed for use with the elliptic curve Diffie–Hellman (ECDH) key agreement scheme. It is one of the fastest ECC curves and is not covered by any known patents.

This Updated version does not depend on SecureRandom.NetCore anymore, but uses either the build-in SecureRandom or the Random function of your TPM module, with software fallback (configurable).

Install

From a command prompt

dotnet add package Curve25519.NetCore.Updated

Install-Package Curve25519.NetCore.Updated

You can also search for package via your nuget ui / website:

https://www.nuget.org/packages/Curve25519.NetCore.Updated/

Examples

var curve25519 = new Curve25519();
var alicePrivate = curve25519.CreateRandomPrivateKey();
var alicePublic = curve25519.GetPublicKey(alicePrivate);

var bobPrivate = curve25519.CreateRandomPrivateKey();
var bobPublic = curve25519.GetPublicKey(bobPrivate);

var aliceShared = curve25519.GetSharedSecret(alicePrivate, bobPublic);
var bobShared = curve25519.GetSharedSecret(bobPrivate, alicePublic);
var equal = aliceShared.SequenceEqual(bobShared);