mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-11-24 14:37:25 +00:00
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/// \brief \b [Internal] SHA-1 computation class
|
|
///
|
|
/// 100% free public domain implementation of the SHA-1
|
|
/// algorithm by Dominik Reichl <Dominik.Reichl@tiscali.de>
|
|
///
|
|
///
|
|
/// === Test Vectors (from FIPS PUB 180-1) ===
|
|
///
|
|
/// "abc"
|
|
/// A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
|
|
///
|
|
/// "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
|
|
/// 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
|
|
///
|
|
/// A million repetitions of "a"
|
|
/// 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
|
|
|
|
#ifndef ___SHA1_H___
|
|
#define ___SHA1_H___
|
|
|
|
#include "RakMemoryOverride.h"
|
|
#include <stdio.h> // Needed for file access
|
|
#include <memory.h> // Needed for memset and memcpy
|
|
#include <string.h> // Needed for strcat and strcpy
|
|
#include "Types.h"
|
|
#include "Export.h"
|
|
|
|
#define MAX_FILE_READ_BUFFER 8000
|
|
|
|
#define SHA1_LENGTH 20
|
|
|
|
class RAK_DLL_EXPORT CSHA1 : public RakNet::RakMemoryOverride
|
|
{
|
|
|
|
public:
|
|
// Rotate x bits to the left
|
|
// #define ROL32(value, bits) (((value)<<(bits))|((value)>>(32-(bits))))
|
|
|
|
#ifdef LITTLE_ENDIAN
|
|
#define SHABLK0(i) (block->l[i] = (ROL32(block->l[i],24) & 0xFF00FF00) \
|
|
| (ROL32(block->l[i],8) & 0x00FF00FF))
|
|
#else
|
|
#define SHABLK0(i) (block->l[i])
|
|
#endif
|
|
|
|
#define SHABLK(i) (block->l[i&15] = ROL32(block->l[(i+13)&15] ^ block->l[(i+8)&15] \
|
|
^ block->l[(i+2)&15] ^ block->l[i&15],1))
|
|
|
|
// SHA-1 rounds
|
|
#define R0(v,w,x,y,z,i) { z+=((w&(x^y))^y)+SHABLK0(i)+0x5A827999+ROL32(v,5); w=ROL32(w,30); }
|
|
#define R1(v,w,x,y,z,i) { z+=((w&(x^y))^y)+SHABLK(i)+0x5A827999+ROL32(v,5); w=ROL32(w,30); }
|
|
#define R2(v,w,x,y,z,i) { z+=(w^x^y)+SHABLK(i)+0x6ED9EBA1+ROL32(v,5); w=ROL32(w,30); }
|
|
#define R3(v,w,x,y,z,i) { z+=(((w|x)&y)|(w&x))+SHABLK(i)+0x8F1BBCDC+ROL32(v,5); w=ROL32(w,30); }
|
|
#define R4(v,w,x,y,z,i) { z+=(w^x^y)+SHABLK(i)+0xCA62C1D6+ROL32(v,5); w=ROL32(w,30); }
|
|
|
|
typedef union {
|
|
unsigned char c[ 64 ];
|
|
unsigned int l[ 16 ];
|
|
} SHA1_WORKSPACE_BLOCK;
|
|
/* Two different formats for ReportHash(...)
|
|
*/
|
|
enum { REPORT_HEX = 0,
|
|
REPORT_DIGIT = 1};
|
|
|
|
CSHA1();
|
|
virtual ~CSHA1();
|
|
|
|
unsigned int m_state[ 5 ];
|
|
unsigned int m_count[ 2 ];
|
|
unsigned char m_buffer[ 64 ];
|
|
unsigned char m_digest[ 20 ];
|
|
void Reset();
|
|
void Update( unsigned char* data, unsigned int len );
|
|
bool HashFile( char *szFileName );
|
|
void Final();
|
|
void ReportHash( char *szReport, unsigned char uReportType = REPORT_HEX );
|
|
void GetHash( unsigned char *uDest );
|
|
unsigned char * GetHash( void ) const;
|
|
|
|
private:
|
|
void Transform( unsigned int state[ 5 ], unsigned char buffer[ 64 ] );
|
|
unsigned char workspace[ 64 ];
|
|
};
|
|
|
|
#endif // ___SHA1_H___
|
|
|