private DeferredHash(byte prfHashAlgorithm, IDigest prfHash) { mBuf = null; mHashes = Platform.CreateHashtable(); mPrfHashAlgorithm = prfHashAlgorithm; mHashes[prfHashAlgorithm] = prfHash; }
protected virtual void CheckStopBuffering() { if (mBuf != null && mHashes.Count <= 4) { foreach (IDigest value in mHashes.Values) { mBuf.UpdateDigest(value); } mBuf = null; } }
public override byte[] GenerateServerKeyExchange() { DigestInputBuffer digestInputBuffer = new DigestInputBuffer(); mECAgreePrivateKey = TlsEccUtilities.GenerateEphemeralServerKeyExchange(mContext.SecureRandom, mNamedCurves, mClientECPointFormats, digestInputBuffer); SignatureAndHashAlgorithm signatureAndHashAlgorithm = TlsUtilities.GetSignatureAndHashAlgorithm(mContext, mServerCredentials); IDigest digest = TlsUtilities.CreateHash(signatureAndHashAlgorithm); SecurityParameters securityParameters = mContext.SecurityParameters; digest.BlockUpdate(securityParameters.clientRandom, 0, securityParameters.clientRandom.Length); digest.BlockUpdate(securityParameters.serverRandom, 0, securityParameters.serverRandom.Length); digestInputBuffer.UpdateDigest(digest); byte[] hash = DigestUtilities.DoFinal(digest); byte[] signature = mServerCredentials.GenerateCertificateSignature(hash); DigitallySigned digitallySigned = new DigitallySigned(signatureAndHashAlgorithm, signature); digitallySigned.Encode(digestInputBuffer); return(digestInputBuffer.ToArray()); }
public override byte[] GenerateServerKeyExchange() { mSrpServer.Init(mSrpGroup, mSrpVerifier, TlsUtilities.CreateHash(2), mContext.SecureRandom); BigInteger b = mSrpServer.GenerateServerCredentials(); ServerSrpParams serverSrpParams = new ServerSrpParams(mSrpGroup.N, mSrpGroup.G, mSrpSalt, b); DigestInputBuffer digestInputBuffer = new DigestInputBuffer(); serverSrpParams.Encode(digestInputBuffer); if (mServerCredentials != null) { SignatureAndHashAlgorithm signatureAndHashAlgorithm = TlsUtilities.GetSignatureAndHashAlgorithm(mContext, mServerCredentials); IDigest digest = TlsUtilities.CreateHash(signatureAndHashAlgorithm); SecurityParameters securityParameters = mContext.SecurityParameters; digest.BlockUpdate(securityParameters.clientRandom, 0, securityParameters.clientRandom.Length); digest.BlockUpdate(securityParameters.serverRandom, 0, securityParameters.serverRandom.Length); digestInputBuffer.UpdateDigest(digest); byte[] array = new byte[digest.GetDigestSize()]; digest.DoFinal(array, 0); byte[] signature = mServerCredentials.GenerateCertificateSignature(array); DigitallySigned digitallySigned = new DigitallySigned(signatureAndHashAlgorithm, signature); digitallySigned.Encode(digestInputBuffer); } return(digestInputBuffer.ToArray()); }
internal DeferredHash() { mBuf = new DigestInputBuffer(); mHashes = Platform.CreateHashtable(); mPrfHashAlgorithm = -1; }