KeyExchangeECDH256
using Renci.SshNet.Abstractions;
using Renci.SshNet.Security.Org.BouncyCastle.Asn1.Sec;
using Renci.SshNet.Security.Org.BouncyCastle.Asn1.X9;
using SshNet.Security.Cryptography;
using System;
using System.Security.Cryptography;
namespace Renci.SshNet.Security
{
internal class KeyExchangeECDH256 : KeyExchangeECDH
{
public override string Name => "ecdh-sha2-nistp256";
protected override X9ECParameters CurveParameter => SecNamedCurves.GetByName("P-256");
protected override int HashSize => 256;
protected override byte[] Hash(byte[] hashData)
{
SHA256 val = CryptoAbstraction.CreateSHA256();
try {
return ((HashAlgorithm)val).ComputeHash(hashData, 0, hashData.Length);
} finally {
((IDisposable)val)?.Dispose();
}
}
}
}