Curve25519Endpoint.cs

using System.Numerics;
using Waher.Networking.XMPP.P2P.SymmetricCiphers;
using Waher.Security.EllipticCurves;
 
namespace Waher.Networking.XMPP.P2P.E2E
{
    public class Curve25519Endpoint : EllipticCurveEndpoint
    {
        public Curve25519Endpoint()
            : this(new Curve25519())
        {
        }
 
        public Curve25519Endpoint(IE2eSymmetricCipher SymmetricCipher)
            : this(new Curve25519(), SymmetricCipher)
        {
        }
 
        public Curve25519Endpoint(Curve25519 Curve)
            : this(Curve, new AeadChaCha20Poly1305())
        {
        }
 
        public Curve25519Endpoint(Curve25519 Curve, IE2eSymmetricCipher SymmetricCipher)
            : base(Curve, SymmetricCipher)
        {
        }
 
        public Curve25519Endpoint(byte[] PublicKey)
            : this(PublicKey, new AeadChaCha20Poly1305())
        {
        }
 
        public Curve25519Endpoint(byte[] PublicKey, IE2eSymmetricCipher SymmetricCipher)
            : base(PublicKey, new Curve25519(), SymmetricCipher)
        {
        }
 
        public override string LocalName => "x25519";
 
        public override int SecurityStrength => 128;
 
        public override bool SupportsSignatures => false;
 
        public override IE2eEndpoint Create(int SecurityStrength)
        {
            return new Curve25519Endpoint(this.DefaultSymmetricCipher.CreteNew());
        }
 
        public override IE2eEndpoint CreatePrivate(byte[] Secret)
        {
            return new Curve25519Endpoint(new Curve25519(Secret), this.DefaultSymmetricCipher.CreteNew());
        }
 
        public override IE2eEndpoint CreatePublic(byte[] PublicKey)
        {
            return new Curve25519Endpoint(PublicKey, this.DefaultSymmetricCipher.CreteNew());
        }
    }
}