protected void InitializeClientContextUsingPsk(string pskCiphers)
{
// Initialize the context with the specified ssl version
//sslContext = new SslContext(SslMethod.SSLv23_client_method);
sslContext = new SslContext(SslMethod.TLSv1_client_method);
//sslContext = new SslContext(SslMethod.SSLv3_client_method);
// Remove support for protocols that should not be supported
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv2;
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv3;
// Set the enabled cipher list
// WARNING: Using PSK ciphers requires that the PSK callback be set and initialize the identity and psk value.
// Failure to do this will cause the PSK ciphers to be skipped when picking a shared cipher.
// The result will be an error because of "no shared ciphers".
// sslContext.SetCipherList("PSK-AES256-CBC-SHA:PSK-3DES-EDE-CBC-SHA:PSK-AES128-CBC-SHA:PSK-RC4-SHA");
sslContext.SetCipherList(pskCiphers);
// Set the PSK callbacks
sslContext.SetPskClientCallback(this.internalPskClientCallback);
// Set up the read/write bio's
read_bio = BIO.MemoryBuffer(false);
write_bio = BIO.MemoryBuffer(false);
ssl = new Ssl(sslContext);
ssl.SetBIO(read_bio, write_bio);
read_bio.SetClose(BIO.CloseOption.Close);
write_bio.SetClose(BIO.CloseOption.Close);
ssl.SetConnectState();
}
protected void InitializeClientContext(X509List certificates, SslProtocols enabledSslProtocols, SslStrength sslStrength, bool checkCertificateRevocation)
{
// Initialize the context with the specified ssl version
// Initialize the context
sslContext = new SslContext(SslMethod.SSLv23_client_method);
// Remove support for protocols not specified in the enabledSslProtocols
if ((enabledSslProtocols & SslProtocols.Ssl2) != SslProtocols.Ssl2)
{
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv2;
}
if ((enabledSslProtocols & SslProtocols.Ssl3) != SslProtocols.Ssl3 &&
((enabledSslProtocols & SslProtocols.Default) != SslProtocols.Default))
{
// no SSLv3 support
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv3;
}
if ((enabledSslProtocols & SslProtocols.Tls) != SslProtocols.Tls &&
(enabledSslProtocols & SslProtocols.Default) != SslProtocols.Default)
{
sslContext.Options |= SslOptions.SSL_OP_NO_TLSv1;
}
// Set the Local certificate selection callback
sslContext.SetClientCertCallback(this.internalCertificateSelectionCallback);
// Set the enabled cipher list
sslContext.SetCipherList(GetCipherString(false, enabledSslProtocols, sslStrength));
// Set the callbacks for remote cert verification and local cert selection
if (remoteCertificateSelectionCallback != null)
{
sslContext.SetVerify(VerifyMode.SSL_VERIFY_PEER | VerifyMode.SSL_VERIFY_FAIL_IF_NO_PEER_CERT, remoteCertificateSelectionCallback);
}
// Set the CA list into the store
if (caCertificates != null)
{
X509Store store = new X509Store(caCertificates);
sslContext.SetCertificateStore(store);
}
// Set up the read/write bio's
read_bio = BIO.MemoryBuffer(false);
write_bio = BIO.MemoryBuffer(false);
ssl = new Ssl(sslContext);
ssl.SetBIO(read_bio, write_bio);
read_bio.SetClose(BIO.CloseOption.Close);
write_bio.SetClose(BIO.CloseOption.Close);
// Set the Ssl object into Client mode
ssl.SetConnectState();
}