private ICipherParameters GetParameters(ConnectionDirection direction)
{
var end = _endConfig.End;
var cipherParameterFactory = _cipherSuitesProvider.ResolveCipherParameterFactory(_cipherSuiteConfig.CipherSuite);
return(cipherParameterFactory.Create(end, direction));
}
private ICipherParameters GetParameters(ConnectionDirection direction, byte[] aad, byte[] nonceExplicit)
{
var end = _endConfig.End;
var cipherParameterFactory = _cipherSuitesProvider.ResolveCipherParameterFactory(_cipherSuiteConfig.CipherSuite);
var innerParameters = cipherParameterFactory.Create(end, direction);
var nonceImplicit = GetImplicitNonce(direction);
SecurityAssert.NotNull(nonceImplicit);
SecurityAssert.Assert(nonceImplicit.Length > 0);
var nonce = new byte[nonceImplicit.Length + nonceExplicit.Length];
Array.Copy(nonceImplicit, 0, nonce, 0, nonceImplicit.Length);
Array.Copy(nonceExplicit, 0, nonce, nonceImplicit.Length, nonceExplicit.Length);
return(new AADParameter(new IVParameter(innerParameters, nonce), aad));
}
