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/* MD5
* converted to C++ class by Frank Thilo (thilo@unix-ag.org)
* for bzflag (http://www.bzflag.org)
*
* based on:
*
* This is the header file for the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*
* Changed so as no longer to depend on Colin Plumb's `usual.h'
* header definitions; now uses stuff from dpkg's config.h
* - Ian Jackson <ian@chiark.greenend.org.uk>.
* Still in the public domain.
*/
#ifndef BZF_MD5_H
#define BZF_MD5_H
#include "common.h"
/* system interface headers */
#include <string>
#include <iostream>
// a small class for calculating MD5 hashes of strings or byte arrays
// it is not meant to be fast or secure
//
// usage: 1) feed it blocks of uchars with update()
// 2) finalize()
// 3) get hexdigest() string
// or
// MD5(std::string).hexdigest()
//
// assumes that char is 8 bit and int is 32 bit
class MD5
{
public:
uint8_t digest[16];
MD5();
MD5(const std::string& text);
void update(const unsigned char *buf, uint32_t length);
void finalize();
std::string hexdigest() const;
friend std::ostream& operator<<(std::ostream&, MD5 md5);
private:
uint32_t buf[4];
uint32_t bytes[2];
uint32_t in[16];
bool finalized;
void init(void);
void transform(void);
};
#endif
// Local Variables: ***
// mode:C++ ***
// tab-width: 8 ***
// c-basic-offset: 2 ***
// indent-tabs-mode: t ***
// End: ***
// ex: shiftwidth=2 tabstop=8
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