1 /* $Id: cpl_sha256.h 4066b56114dce5dd680e28b43526396ce43a6d7e 2018-02-14 12:47:28Z Even Rouault $ */ 2 3 /* The MIT License 4 5 Copyright (C) 2011 Zilong Tan (tzlloch@gmail.com) 6 Copyright (C) 2015 Even Rouault <even.rouault at spatialys.com> 7 8 Permission is hereby granted, free of charge, to any person obtaining 9 a copy of this software and associated documentation files (the 10 "Software"), to deal in the Software without restriction, including 11 without limitation the rights to use, copy, modify, merge, publish, 12 distribute, sublicense, and/or sell copies of the Software, and to 13 permit persons to whom the Software is furnished to do so, subject to 14 the following conditions: 15 16 The above copyright notice and this permission notice shall be 17 included in all copies or substantial portions of the Software. 18 19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 23 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 24 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 25 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 26 SOFTWARE. 27 */ 28 29 #ifndef CPL_SHA256_INCLUDED_H 30 #define CPL_SHA256_INCLUDED_H 31 32 #ifndef DOXYGEN_SKIP 33 34 #include "cpl_port.h" 35 36 #define CPL_SHA256_HASH_SIZE 32 /* 256 bit */ 37 #define CPL_SHA256_HASH_WORDS 8 38 39 #ifndef GUInt64 40 #define GUInt64 GUIntBig 41 #endif 42 43 CPL_C_START 44 45 struct _CPL_SHA256Context { 46 GUInt64 totalLength; 47 GUInt32 hash[CPL_SHA256_HASH_WORDS]; 48 GUInt32 bufferLength; 49 union { 50 GUInt32 words[16]; 51 GByte bytes[64]; 52 } buffer; 53 }; 54 typedef struct _CPL_SHA256Context CPL_SHA256Context; 55 56 void CPL_DLL CPL_SHA256Init(CPL_SHA256Context * sc); 57 58 void CPL_DLL CPL_SHA256Update(CPL_SHA256Context * sc, const void *data, size_t len); 59 60 void CPL_DLL CPL_SHA256Final(CPL_SHA256Context * sc, GByte hash[CPL_SHA256_HASH_SIZE]); 61 62 void CPL_DLL CPL_SHA256(const void *data, size_t len, GByte hash[CPL_SHA256_HASH_SIZE]); 63 64 void CPL_DLL CPL_HMAC_SHA256(const void *pKey, size_t nKeyLen, 65 const void *pabyMessage, size_t nMessageLen, 66 GByte abyDigest[CPL_SHA256_HASH_SIZE]); 67 68 // Not exported for now 69 GByte* CPL_RSA_SHA256_Sign(const char* pszPrivateKey, 70 const void* pabyData, 71 unsigned int nDataLen, 72 unsigned int* pnSignatureLen); 73 74 CPL_C_END 75 76 #endif /* #ifndef DOXYGEN_SKIP */ 77 78 #endif /* CPL_SHA256_INCLUDED_H */ 79