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/**
* TLS Messages
* (C) 2004-2010 Jack Lloyd
*
* Released under the terms of the Botan license
*/
#ifndef BOTAN_TLS_MESSAGES_H__
#define BOTAN_TLS_MESSAGES_H__
#include <botan/tls_record.h>
#include <botan/handshake_hash.h>
#include <botan/tls_policy.h>
#include <botan/bigint.h>
#include <botan/pkcs8.h>
#include <botan/x509cert.h>
#include <vector>
namespace Botan {
/**
* TLS Handshake Message Base Class
*/
class BOTAN_DLL HandshakeMessage
{
public:
void send(Record_Writer&, HandshakeHash&) const;
virtual Handshake_Type type() const = 0;
virtual ~HandshakeMessage() {}
private:
HandshakeMessage& operator=(const HandshakeMessage&) { return (*this); }
virtual SecureVector<byte> serialize() const = 0;
virtual void deserialize(const MemoryRegion<byte>&) = 0;
};
/**
* Client Hello Message
*/
class BOTAN_DLL Client_Hello : public HandshakeMessage
{
public:
Handshake_Type type() const { return CLIENT_HELLO; }
Version_Code version() const { return c_version; }
const SecureVector<byte>& session_id() const { return sess_id; }
std::vector<u16bit> ciphersuites() const { return suites; }
std::vector<byte> compression_algos() const { return comp_algos; }
const SecureVector<byte>& random() const { return c_random; }
std::string hostname() const { return requested_hostname; }
bool offered_suite(u16bit) const;
Client_Hello(RandomNumberGenerator& rng,
Record_Writer&, const TLS_Policy*, HandshakeHash&);
Client_Hello(const MemoryRegion<byte>& buf,
Handshake_Type type)
{
if(type == CLIENT_HELLO)
deserialize(buf);
else
deserialize_sslv2(buf);
}
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
void deserialize_sslv2(const MemoryRegion<byte>&);
Version_Code c_version;
SecureVector<byte> sess_id, c_random;
std::vector<u16bit> suites;
std::vector<byte> comp_algos;
std::string requested_hostname;
};
/**
* Client Key Exchange Message
*/
class BOTAN_DLL Client_Key_Exchange : public HandshakeMessage
{
public:
Handshake_Type type() const { return CLIENT_KEX; }
SecureVector<byte> pre_master_secret() const;
SecureVector<byte> pre_master_secret(RandomNumberGenerator& rng,
const Private_Key* key,
Version_Code version);
Client_Key_Exchange(RandomNumberGenerator& rng,
Record_Writer& output,
HandshakeHash& hash,
const Public_Key* my_key,
Version_Code using_version,
Version_Code pref_version);
Client_Key_Exchange(const MemoryRegion<byte>& buf,
const CipherSuite& suite,
Version_Code using_version);
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
SecureVector<byte> key_material, pre_master;
bool include_length;
};
/**
* Certificate Message
*/
class BOTAN_DLL Certificate : public HandshakeMessage
{
public:
Handshake_Type type() const { return CERTIFICATE; }
std::vector<X509_Certificate> cert_chain() const { return certs; }
Certificate(Record_Writer&, const std::vector<X509_Certificate>&,
HandshakeHash&);
Certificate(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
std::vector<X509_Certificate> certs;
};
/**
* Certificate Request Message
*/
class BOTAN_DLL Certificate_Req : public HandshakeMessage
{
public:
Handshake_Type type() const { return CERTIFICATE_REQUEST; }
std::vector<Certificate_Type> acceptable_types() const { return types; }
std::vector<X509_DN> acceptable_CAs() const { return names; }
/* TODO
Certificate_Req(Record_Writer&, HandshakeHash&,
const X509_Certificate&);
*/
Certificate_Req(Record_Writer&, HandshakeHash&,
const std::vector<X509_Certificate>&);
Certificate_Req(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
std::vector<X509_DN> names;
std::vector<Certificate_Type> types;
};
/**
* Certificate Verify Message
*/
class BOTAN_DLL Certificate_Verify : public HandshakeMessage
{
public:
Handshake_Type type() const { return CERTIFICATE_VERIFY; }
bool verify(const X509_Certificate&, HandshakeHash&);
Certificate_Verify(RandomNumberGenerator& rng,
Record_Writer&, HandshakeHash&,
const Private_Key*);
Certificate_Verify(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
SecureVector<byte> signature;
};
/**
* Finished Message
*/
class BOTAN_DLL Finished : public HandshakeMessage
{
public:
Handshake_Type type() const { return FINISHED; }
bool verify(const MemoryRegion<byte>&, Version_Code,
const HandshakeHash&, Connection_Side);
Finished(Record_Writer&, Version_Code, Connection_Side,
const MemoryRegion<byte>&, HandshakeHash&);
Finished(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
SecureVector<byte> compute_verify(const MemoryRegion<byte>&,
HandshakeHash, Connection_Side,
Version_Code);
Connection_Side side;
SecureVector<byte> verification_data;
};
/**
* Hello Request Message
*/
class BOTAN_DLL Hello_Request : public HandshakeMessage
{
public:
Handshake_Type type() const { return HELLO_REQUEST; }
Hello_Request(Record_Writer&);
Hello_Request(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
};
/**
* Server Hello Message
*/
class BOTAN_DLL Server_Hello : public HandshakeMessage
{
public:
Handshake_Type type() const { return SERVER_HELLO; }
Version_Code version() { return s_version; }
const SecureVector<byte>& session_id() const { return sess_id; }
u16bit ciphersuite() const { return suite; }
byte compression_algo() const { return comp_algo; }
const SecureVector<byte>& random() const { return s_random; }
Server_Hello(RandomNumberGenerator& rng,
Record_Writer&, const TLS_Policy*,
const std::vector<X509_Certificate>&,
const Client_Hello&, Version_Code, HandshakeHash&);
Server_Hello(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
Version_Code s_version;
SecureVector<byte> sess_id, s_random;
u16bit suite;
byte comp_algo;
};
/**
* Server Key Exchange Message
*/
class BOTAN_DLL Server_Key_Exchange : public HandshakeMessage
{
public:
Handshake_Type type() const { return SERVER_KEX; }
Public_Key* key() const;
bool verify(const X509_Certificate&, const MemoryRegion<byte>&,
const MemoryRegion<byte>&) const;
Server_Key_Exchange(RandomNumberGenerator& rng,
Record_Writer&, const Public_Key*,
const Private_Key*, const MemoryRegion<byte>&,
const MemoryRegion<byte>&, HandshakeHash&);
Server_Key_Exchange(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
SecureVector<byte> serialize_params() const;
void deserialize(const MemoryRegion<byte>&);
std::vector<BigInt> params;
SecureVector<byte> signature;
};
/**
* Server Hello Done Message
*/
class BOTAN_DLL Server_Hello_Done : public HandshakeMessage
{
public:
Handshake_Type type() const { return SERVER_HELLO_DONE; }
Server_Hello_Done(Record_Writer&, HandshakeHash&);
Server_Hello_Done(const MemoryRegion<byte>& buf) { deserialize(buf); }
private:
SecureVector<byte> serialize() const;
void deserialize(const MemoryRegion<byte>&);
};
}
#endif
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