Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: Generic MD5 hashing algo
//
//=============================================================================//
#ifndef CHECKSUM_MD5_H
#define CHECKSUM_MD5_H
#ifdef _WIN32
#pragma once
#endif
// 16 bytes == 128 bit digest
#define MD5_DIGEST_LENGTH 16
// MD5 Hash
typedef struct
{
unsigned int buf[4];
unsigned int bits[2];
unsigned char in[64];
} MD5Context_t;
void MD5Init( MD5Context_t *context );
void MD5Update( MD5Context_t *context, unsigned char const *buf, unsigned int len );
void MD5Final( unsigned char digest[ MD5_DIGEST_LENGTH ], MD5Context_t *context );
char *MD5_Print(unsigned char *digest, int hashlen );
unsigned int MD5_PseudoRandom(unsigned int nSeed);
#endif // CHECKSUM_MD5_H