public override byte[] GenerateServerKeyExchange()
{
DigestInputBuffer buf = new DigestInputBuffer();
this.mECAgreePrivateKey = TlsEccUtilities.GenerateEphemeralServerKeyExchange(mContext.SecureRandom, mNamedCurves,
mClientECPointFormats, buf);
/*
* RFC 5246 4.7. digitally-signed element needs SignatureAndHashAlgorithm from TLS 1.2
*/
SignatureAndHashAlgorithm signatureAndHashAlgorithm = TlsUtilities.GetSignatureAndHashAlgorithm(
mContext, mServerCredentials);
IDigest d = TlsUtilities.CreateHash(signatureAndHashAlgorithm);
SecurityParameters securityParameters = mContext.SecurityParameters;
d.BlockUpdate(securityParameters.clientRandom, 0, securityParameters.clientRandom.Length);
d.BlockUpdate(securityParameters.serverRandom, 0, securityParameters.serverRandom.Length);
buf.UpdateDigest(d);
byte[] hash = DigestUtilities.DoFinal(d);
byte[] signature = mServerCredentials.GenerateCertificateSignature(hash);
DigitallySigned signed_params = new DigitallySigned(signatureAndHashAlgorithm, signature);
signed_params.Encode(buf);
return(buf.ToArray());
}
public virtual TlsHandshakeHash NotifyPrfDetermined()
{
int prfAlgorithm = mContext.SecurityParameters.PrfAlgorithm;
if (prfAlgorithm == PrfAlgorithm.tls_prf_legacy)
{
CombinedHash legacyHash = new CombinedHash();
legacyHash.Init(mContext);
mBuf.UpdateDigest(legacyHash);
return(legacyHash.NotifyPrfDetermined());
}
this.mPrfHashAlgorithm = TlsUtilities.GetHashAlgorithmForPrfAlgorithm(prfAlgorithm);
CheckTrackingHash((byte)mPrfHashAlgorithm);
return(this);
}
public override byte[] GenerateServerKeyExchange()
{
mSrpServer.Init(mSrpGroup, mSrpVerifier, TlsUtilities.CreateHash(HashAlgorithm.sha1), mContext.SecureRandom);
BigInteger B = mSrpServer.GenerateServerCredentials();
ServerSrpParams srpParams = new ServerSrpParams(mSrpGroup.N, mSrpGroup.G, mSrpSalt, B);
DigestInputBuffer buf = new DigestInputBuffer();
srpParams.Encode(buf);
if (mServerCredentials != null)
{
/*
* RFC 5246 4.7. digitally-signed element needs SignatureAndHashAlgorithm from TLS 1.2
*/
SignatureAndHashAlgorithm signatureAndHashAlgorithm = TlsUtilities.GetSignatureAndHashAlgorithm(
mContext, mServerCredentials);
IDigest d = TlsUtilities.CreateHash(signatureAndHashAlgorithm);
SecurityParameters securityParameters = mContext.SecurityParameters;
d.BlockUpdate(securityParameters.clientRandom, 0, securityParameters.clientRandom.Length);
d.BlockUpdate(securityParameters.serverRandom, 0, securityParameters.serverRandom.Length);
buf.UpdateDigest(d);
byte[] hash = new byte[d.GetDigestSize()];
d.DoFinal(hash, 0);
byte[] signature = mServerCredentials.GenerateCertificateSignature(hash);
DigitallySigned signed_params = new DigitallySigned(signatureAndHashAlgorithm, signature);
signed_params.Encode(buf);
}
return(buf.ToArray());
}
public override byte[] GenerateServerKeyExchange()
{
if (this.mDHParameters == null)
{
throw new TlsFatalAlert(AlertDescription.internal_error);
}
DigestInputBuffer buf = new DigestInputBuffer();
this.mDHAgreePrivateKey = TlsDHUtilities.GenerateEphemeralServerKeyExchange(mContext.SecureRandom,
this.mDHParameters, buf);
/*
* RFC 5246 4.7. digitally-signed element needs SignatureAndHashAlgorithm from TLS 1.2
*/
SignatureAndHashAlgorithm signatureAndHashAlgorithm = TlsUtilities.GetSignatureAndHashAlgorithm(
mContext, mServerCredentials);
IDigest d = TlsUtilities.CreateHash(signatureAndHashAlgorithm);
SecurityParameters securityParameters = mContext.SecurityParameters;
d.BlockUpdate(securityParameters.clientRandom, 0, securityParameters.clientRandom.Length);
d.BlockUpdate(securityParameters.serverRandom, 0, securityParameters.serverRandom.Length);
buf.UpdateDigest(d);
byte[] hash = DigestUtilities.DoFinal(d);
byte[] signature = mServerCredentials.GenerateCertificateSignature(hash);
DigitallySigned signed_params = new DigitallySigned(signatureAndHashAlgorithm, signature);
signed_params.Encode(buf);
return(buf.ToArray());
}