/* 100% free public domain implementation of the SHA-1 algorithm by Dominik Reichl Web: http://www.dominik-reichl.de/ Version 1.8 - 2008-03-16 - Converted project files to Visual Studio 2008 format. - Added Unicode support for HashFile utility method. - Added support for hashing files using the HashFile method that are larger than 2 GB. - HashFile now returns an error code instead of copying an error message into the output buffer. - GetHash now returns an error code and validates the input parameter. - Added ReportHashStl STL utility method. - Added REPORT_HEX_SHORT reporting mode. - Improved Linux compatibility of test program. Version 1.7 - 2006-12-21 - Fixed buffer underrun warning that appeared when compiling with Borland C Builder (thanks to Rex Bloom and Tim Gallagher for the patch). - Breaking change: ReportHash writes the final hash to the start of the buffer, i.e. it's not appending it to the string anymore. - Made some function parameters const. - Added Visual Studio 2005 project files to demo project. Version 1.6 - 2005-02-07 (thanks to Howard Kapustein for patches) - You can set the endianness in your files, no need to modify the header file of the CSHA1 class anymore. - Aligned data support. - Made support/compilation of the utility functions (ReportHash and HashFile) optional (useful when bytes count, for example in embedded environments). 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). Version 1.4 - 2004-07-22 - CSHA1 now compiles fine with GCC 3.3 under MacOS X (thanks to Larry Hastings). Version 1.3 - 2003-08-17 - Fixed a small memory bug and made a buffer array a class member to ensure correct working when using multiple CSHA1 class instances at one time. Version 1.2 - 2002-11-16 - Borlands C++ compiler seems to have problems with string addition using sprintf. Fixed the bug which caused the digest report function not to work properly. CSHA1 is now Borland compatible. Version 1.1 - 2002-10-11 - Removed two unnecessary header file includes and changed BOOL to bool. Fixed some minor bugs in the web page contents. Version 1.0 - 2002-06-20 - First official release. ======== 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 "export.h" #include "version.h" #if !defined(SHA1_UTILITY_FUNCTIONS) && !defined(SHA1_NO_UTILITY_FUNCTIONS) #define SHA1_UTILITY_FUNCTIONS #endif #if !defined(SHA1_STL_FUNCTIONS) && !defined(SHA1_NO_STL_FUNCTIONS) #define SHA1_STL_FUNCTIONS #if !defined(SHA1_UTILITY_FUNCTIONS) #error STL functions require SHA1_UTILITY_FUNCTIONS. #endif #endif #include #ifdef SHA1_UTILITY_FUNCTIONS #include #include #endif #ifdef SHA1_STL_FUNCTIONS #include #endif #ifdef _MSC_VER #include #endif // You can define the endian mode in your files without modifying the SHA-1 // source files. Just #define SHA1_LITTLE_ENDIAN or #define SHA1_BIG_ENDIAN // in your files, before including the SHA1.h header file. If you don't // define anything, the class defaults to little endian. #if !defined(SHA1_LITTLE_ENDIAN) && !defined(SHA1_BIG_ENDIAN) #define SHA1_LITTLE_ENDIAN #endif // If you want variable wiping, #define SHA1_WIPE_VARIABLES, if not, // #define SHA1_NO_WIPE_VARIABLES. If you don't define anything, it // defaults to wiping. #if !defined(SHA1_WIPE_VARIABLES) && !defined(SHA1_NO_WIPE_VARIABLES) #define SHA1_WIPE_VARIABLES #endif #if defined(SHA1_HAS_TCHAR) #include #else #ifdef _MSC_VER #include #else #ifndef TCHAR #define TCHAR char #endif #ifndef _T #define _T(__x) (__x) #define _tmain main #define _tprintf printf #define _getts gets #define _tcslen strlen #define _tfopen fopen #define _tcscpy strcpy #define _tcscat strcat #define _sntprintf snprintf #endif #endif #endif // Fallback, if no 64-bit support #ifndef _fseeki64 #define _fseeki64 fseek #endif #ifndef _ftelli64 #define _ftelli64 ftell #endif /////////////////////////////////////////////////////////////////////////// // Define variable types #ifndef UINT_8 #ifdef _MSC_VER // Compiling with Microsoft compiler #define UINT_8 unsigned __int8 #else // !_MSC_VER #define UINT_8 unsigned char #endif // _MSC_VER #endif #ifndef UINT_32 #ifdef _MSC_VER // Compiling with Microsoft compiler #define UINT_32 unsigned __int32 #else // !_MSC_VER #if (ULONG_MAX == 0xFFFFFFFF) #define UINT_32 unsigned long #else #define UINT_32 unsigned int #endif #endif // _MSC_VER #endif // UINT_32 #ifndef INT_64 #ifdef _MSC_VER // Compiling with Microsoft compiler #define INT_64 __int64 #else // !_MSC_VER #define INT_64 long long #endif // _MSC_VER #endif // INT_64 #ifndef UINT_64 #ifdef _MSC_VER // Compiling with Microsoft compiler #define UINT_64 unsigned __int64 #else // !_MSC_VER #define UINT_64 unsigned long long #endif // _MSC_VER #endif // UINT_64 /////////////////////////////////////////////////////////////////////////// // Declare SHA-1 workspace OIIO_NAMESPACE_ENTER { typedef union { UINT_8 c[64]; UINT_32 l[16]; } SHA1_WORKSPACE_BLOCK; class DLLPUBLIC CSHA1 { public: #ifdef SHA1_UTILITY_FUNCTIONS // Different formats for ReportHash enum REPORT_TYPE { REPORT_HEX = 0, REPORT_DIGIT = 1, REPORT_HEX_SHORT = 2 }; #endif // Constructor and destructor CSHA1(); ~CSHA1(); UINT_32 m_state[5]; UINT_32 m_count[2]; UINT_32 m_reserved0[1]; // Memory alignment padding UINT_8 m_buffer[64]; UINT_8 m_digest[20]; UINT_32 m_reserved1[3]; // Memory alignment padding void Reset(); // Update the hash value void Update(const UINT_8* pbData, UINT_32 uLen); #ifdef SHA1_UTILITY_FUNCTIONS // Hash in file contents bool HashFile(const TCHAR* tszFileName); #endif // Finalize hash, call before using ReportHash(Stl) void Final(); #ifdef SHA1_UTILITY_FUNCTIONS bool ReportHash(TCHAR* tszReport, REPORT_TYPE rtReportType = REPORT_HEX) const; #endif #ifdef SHA1_STL_FUNCTIONS bool ReportHashStl(std::basic_string& strOut, REPORT_TYPE rtReportType = REPORT_HEX) const; #endif bool GetHash(UINT_8* pbDest) const; private: // Private SHA-1 transformation void Transform(UINT_32* pState, const UINT_8* pBuffer); // Member variables UINT_8 m_workspace[64]; SHA1_WORKSPACE_BLOCK* m_block; // SHA1 pointer to the byte array above }; } OIIO_NAMESPACE_EXIT #endif // ___SHA1_HDR___