/usr/include/dclib-0.3/dclib/core/cssl.h is in libdc-dev 0.3.24~svn3121-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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cssl.h - description
-------------------
begin : Sat Dec 7 2002
copyright : (C) 2002-2003 by Mathias Küster
email : mathen@users.berlios.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef CSSL_H
#define CSSL_H
/**
*@author Mathias Küster
*
* This has some SSL utility functions and does some
* cryptography for the "secure" private chat.
*/
#include <dclib/dcos.h>
#include <dclib/core/cstring.h>
#include <dclib/dclib-ssl-use.h>
#if DCLIB_USES_OPENSSL == 1
#include <openssl/opensslv.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#include <openssl/evp.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#else
/* this may also work for SSL builds */
typedef struct rsa_st RSA;
typedef struct ssl_ctx_st SSL_CTX;
#endif
class CMutex;
class CSSLObject {
public:
/** */
CSSLObject() {
m_bHandshakeState = 0;
m_pRSA = 0;
};
/** */
~CSSLObject();
/** */
int m_bHandshakeState;
/* */
RSA * m_pRSA;
/** */
unsigned char m_localkey[16];
/** */
unsigned char m_localiv[8];
/** */
unsigned char m_remotekey[16];
/** */
unsigned char m_remoteiv[8];
};
class CSSL {
public:
/** */
CSSL();
/** */
virtual ~CSSL();
/** */
static SSL_CTX * InitClientCTX();
/** */
static SSL_CTX * InitServerCTX();
/**
* As the name suggests it creates a new client SSL_CTX
* that only supports >= TLSv1, required for
* *DC++ compatibility.
*/
static SSL_CTX * NewTLSv1ClientCTX();
/**
* As the name suggests it creates a new server SSL_CTX
* that only supports >= TLSv1, required for
* *DC++ compatibility.
*/
static SSL_CTX * NewTLSv1ServerCTX();
/** */
static bool LoadCertificates( SSL_CTX * ctx, char * CertFile, char * KeyFile );
/** Get SSL library version string */
static CString GetSSLVersionString();
/** Perform library initialisation functions */
static void InitSSLLibrary();
/** Perform library deinitialisation functions */
static void DeInitSSLLibrary();
protected:
/** */
void InitRand();
/** */
void InitRandArray( unsigned char * a, int len );
/** */
bool GenerateRsaKey();
/** */
CString GetPublicRsaKey();
/** */
bool SetPublicKey( CSSLObject * SSLObject, CString s );
/** */
void InitSessionKey( CSSLObject * SSLObject );
/** */
CString GetSessionKey( CSSLObject * SSLObject );
/** */
bool SetSessionKey( CSSLObject * SSLObject, CString s );
/** */
CString EncryptData( CSSLObject * SSLObject, CString s );
/** */
CString DecryptData( CSSLObject * SSLObject, CString s );
/* */
RSA * m_pRSA;
/** */
int * m_pRandBuffer;
private:
/** some mutexes for OpenSSL to use */
static CMutex * mutexes;
/**
* a function to give to OpenSSL for it to use the mutexes
* FIXME that const will have been added in some version...
* breaking things with older versions
*/
static void locking_callback( int mode, int type, const char * file, int line );
#ifndef WIN32
/** a thread id function, not required on Windows */
static unsigned long thread_id();
#endif /* WIN32 */
};
#endif
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