/*	100% free public domain implementation of the SHA-1 algorithm	by Dominik Reichl <dominik.reichl@t-online.de>	Version 1.5 - 2005-01-01	- 64-bit compiler compatibility added	- Made variable wiping optional (define SHA1_WIPE_VARIABLES)	- Removed unnecessary variable initializations	- ROL32 improvement for the Microsoft compiler (using _rotl)	======== Test Vectors (from FIPS PUB 180-1) ========	SHA1("abc") =		A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D	SHA1("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq") =		84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1	SHA1(A million repetitions of "a") =		34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F*/#ifndef ___SHA1_HDR___#define ___SHA1_HDR___#include <stdio.h>  // Needed for file access#include <memory.h> // Needed for memset and memcpy#include <string.h> // Needed for strcat and strcpy// If you're compiling big endian, just comment out the following line// #define or #undef this, if you want the CSHA1 class to wipe all// temporary variables after processing#define SHA1_WIPE_VARIABLES/////////////////////////////////////////////////////////////////////////////// Define 8- and 32-bit variables#ifndef quint_32 #define quint_8 unsigned char #if (ULONG_MAX == 0xFFFFFFFF)  #define quint_32 unsigned long #else  #define quint_32 unsigned int #endif#endif/////////////////////////////////////////////////////////////////////////////// Declare SHA1 workspacetypedef union{	quint_8  c[64];	quint_32 l[16];} SHA1_WORKSPACE_BLOCK;class CSHA1{public:	// Two different formats for ReportHash(...)	enum	{		REPORT_HEX = 0,		REPORT_DIGIT = 1	};	// Constructor and Destructor	CSHA1();	~CSHA1();	quint_32 m_state[5];	quint_32 m_count[2];	quint_8  m_buffer[64];	quint_8  m_digest[20];	void Reset();	// Update the hash value	void Update(unsigned char* data, int len);	bool HashFile(char *szFileName);	// Finalize hash and report	void Final();	void ReportHash(char *szReport, unsigned char uReportType = REPORT_HEX);	void GetHash(quint_8 *puDest);private:	// Private SHA-1 transformation	void Transform(quint_32 *state, quint_8 *buffer);	// Member variables	quint_8 m_workspace[64];	SHA1_WORKSPACE_BLOCK *m_block; // SHA1 pointer to the byte array above};#endif