/// <summary>Connects to the remote system.</summary>
/// <param name="verifyer">Will be used when a certificate is received to verify
/// that this certificate is accepted by the client.</param>
/// <exception cref="IOException">If handshake was not successful</exception>
public void Connect(
ICertificateVerifyer verifyer)
{
this.verifyer = verifyer;
/*
* Send Client hello
*
* First, generate some random data.
*/
this.clientRandom = new byte[32];
/*
* TLS 1.0 requires a unix-timestamp in the first 4 bytes
*/
int t = (int)(DateTimeUtilities.CurrentUnixMs() / 1000L);
this.clientRandom[0] = (byte)(t >> 24);
this.clientRandom[1] = (byte)(t >> 16);
this.clientRandom[2] = (byte)(t >> 8);
this.clientRandom[3] = (byte)t;
random.NextBytes(this.clientRandom, 4, 28);
MemoryStream outStr = new MemoryStream();
TlsUtilities.WriteVersion(outStr);
outStr.Write(this.clientRandom, 0, this.clientRandom.Length);
/*
* Length of Session id
*/
TlsUtilities.WriteUint8((short)0, outStr);
/*
* Cipher suites
*/
TlsCipherSuiteManager.WriteCipherSuites(outStr);
/*
* Compression methods, just the null method.
*/
byte[] compressionMethods = new byte[]{0x00};
TlsUtilities.WriteUint8((short)compressionMethods.Length, outStr);
outStr.Write(compressionMethods,0, compressionMethods.Length);
MemoryStream bos = new MemoryStream();
TlsUtilities.WriteUint8(HP_CLIENT_HELLO, bos);
TlsUtilities.WriteUint24((int) outStr.Length, bos);
byte[] outBytes = outStr.ToArray();
bos.Write(outBytes, 0, outBytes.Length);
byte[] message = bos.ToArray();
rs.WriteMessage(RL_HANDSHAKE, message, 0, message.Length);
connection_state = CS_CLIENT_HELLO_SEND;
/*
* We will now read data, until we have completed the handshake.
*/
while (connection_state != CS_DONE)
{
rs.ReadData();
}
this.tlsInputStream = new TlsInputStream(this);
this.tlsOutputStream = new TlsOuputStream(this);
}
/// <summary>Connects to the remote system.</summary>
/// <param name="verifyer">Will be used when a certificate is received to verify
/// that this certificate is accepted by the client.</param>
/// <exception cref="IOException">If handshake was not successful</exception>
public virtual void Connect(
ICertificateVerifyer verifyer)
{
this.verifyer = verifyer;
/*
* Send Client hello
*
* First, generate some random data.
*/
this.clientRandom = new byte[32];
/*
* TLS 1.0 requires a unix-timestamp in the first 4 bytes
*/
int t = (int)(DateTimeUtilities.CurrentUnixMs() / 1000L);
this.clientRandom[0] = (byte)(t >> 24);
this.clientRandom[1] = (byte)(t >> 16);
this.clientRandom[2] = (byte)(t >> 8);
this.clientRandom[3] = (byte)t;
random.NextBytes(this.clientRandom, 4, 28);
MemoryStream outStr = new MemoryStream();
TlsUtilities.WriteVersion(outStr);
outStr.Write(this.clientRandom, 0, this.clientRandom.Length);
/*
* Length of Session id
*/
TlsUtilities.WriteUint8((short)0, outStr);
/*
* Cipher suites
*/
TlsCipherSuiteManager.WriteCipherSuites(outStr);
/*
* Compression methods, just the null method.
*/
byte[] compressionMethods = new byte[] { 0x00 };
TlsUtilities.WriteUint8((short)compressionMethods.Length, outStr);
outStr.Write(compressionMethods, 0, compressionMethods.Length);
MemoryStream bos = new MemoryStream();
TlsUtilities.WriteUint8(HP_CLIENT_HELLO, bos);
TlsUtilities.WriteUint24((int)outStr.Length, bos);
byte[] outBytes = outStr.ToArray();
bos.Write(outBytes, 0, outBytes.Length);
byte[] message = bos.ToArray();
rs.WriteMessage(RL_HANDSHAKE, message, 0, message.Length);
connection_state = CS_CLIENT_HELLO_SEND;
/*
* We will now read data, until we have completed the handshake.
*/
while (connection_state != CS_DONE)
{
rs.ReadData();
}
this.tlsInputStream = new TlsInputStream(this);
this.tlsOutputStream = new TlsOuputStream(this);
}
/// <summary>Connects to the remote system.</summary>
/// <param name="verifyer">Will be used when a certificate is received to verify
/// that this certificate is accepted by the client.</param>
/// <exception cref="IOException">If handshake was not successful</exception>
public virtual void Connect(
ICertificateVerifyer verifyer)
{
this.verifyer = verifyer;
/*
* Send Client hello
*
* First, generate some random data.
*/
this.clientRandom = new byte[32];
/*
* TLS 1.0 requires a unix-timestamp in the first 4 bytes
*/
int t = (int)(DateTimeUtilities.CurrentUnixMs() / 1000L);
this.clientRandom[0] = (byte)(t >> 24);
this.clientRandom[1] = (byte)(t >> 16);
this.clientRandom[2] = (byte)(t >> 8);
this.clientRandom[3] = (byte)t;
random.NextBytes(this.clientRandom, 4, 28);
MemoryStream outStr = new MemoryStream();
TlsUtilities.WriteVersion(outStr);
outStr.Write(this.clientRandom, 0, this.clientRandom.Length);
/*
* Length of Session id
*/
TlsUtilities.WriteUint8((short)0, outStr);
/*
* Cipher suites
*/
TlsCipherSuiteManager.WriteCipherSuites(outStr);
/*
* Compression methods, just the null method.
*/
byte[] compressionMethods = new byte[]{0x00};
TlsUtilities.WriteOpaque8(compressionMethods, outStr);
/*
* Extensions
*/
// TODO Collect extensions from client
// Int32 -> byte[]
Hashtable clientExtensions = new Hashtable();
// TODO[SRP]
// {
// MemoryStream srpData = new MemoryStream();
// TlsUtilities.WriteOpaque8(SRP_identity, srpData);
//
// // TODO[SRP] RFC5054 2.8.1: ExtensionType.srp = 12
// clientExtensions[12] = srpData.ToArray();
// }
this.extendedClientHello = (clientExtensions.Count > 0);
if (extendedClientHello)
{
MemoryStream ext = new MemoryStream();
foreach (int extType in clientExtensions.Keys)
{
byte[] extValue = (byte[])clientExtensions[extType];
TlsUtilities.WriteUint16(extType, ext);
TlsUtilities.WriteOpaque16(extValue, ext);
}
TlsUtilities.WriteOpaque16(ext.ToArray(), outStr);
}
MemoryStream bos = new MemoryStream();
TlsUtilities.WriteUint8(HP_CLIENT_HELLO, bos);
TlsUtilities.WriteUint24((int) outStr.Length, bos);
byte[] outBytes = outStr.ToArray();
bos.Write(outBytes, 0, outBytes.Length);
byte[] message = bos.ToArray();
rs.WriteMessage(RL_HANDSHAKE, message, 0, message.Length);
connection_state = CS_CLIENT_HELLO_SEND;
/*
* We will now read data, until we have completed the handshake.
*/
while (connection_state != CS_DONE)
{
rs.ReadData();
}
this.tlsInputStream = new TlsInputStream(this);
this.tlsOutputStream = new TlsOuputStream(this);
}