1 // Copyright 2024 The PDFium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FDRM_FX_CRYPT_SHA_H_ 8 #define CORE_FDRM_FX_CRYPT_SHA_H_ 9 10 #include <stdint.h> 11 12 #include <array> 13 14 #include "core/fxcrt/data_vector.h" 15 #include "core/fxcrt/span.h" 16 17 struct CRYPT_sha1_context { 18 uint64_t total_bytes; 19 uint32_t blkused; // Constrained to [0, 64). 20 std::array<uint32_t, 5> h; 21 std::array<uint8_t, 64> block; 22 }; 23 24 struct CRYPT_sha2_context { 25 uint64_t total_bytes; 26 std::array<uint64_t, 8> state; 27 uint8_t buffer[128]; 28 }; 29 30 void CRYPT_SHA1Start(CRYPT_sha1_context* context); 31 void CRYPT_SHA1Update(CRYPT_sha1_context* context, 32 pdfium::span<const uint8_t> data); 33 void CRYPT_SHA1Finish(CRYPT_sha1_context* context, 34 pdfium::span<uint8_t, 20> digest); 35 DataVector<uint8_t> CRYPT_SHA1Generate(pdfium::span<const uint8_t> data); 36 37 void CRYPT_SHA256Start(CRYPT_sha2_context* context); 38 void CRYPT_SHA256Update(CRYPT_sha2_context* context, 39 pdfium::span<const uint8_t> data); 40 void CRYPT_SHA256Finish(CRYPT_sha2_context* context, 41 pdfium::span<uint8_t, 32> digest); 42 DataVector<uint8_t> CRYPT_SHA256Generate(pdfium::span<const uint8_t> data); 43 44 void CRYPT_SHA384Start(CRYPT_sha2_context* context); 45 void CRYPT_SHA384Update(CRYPT_sha2_context* context, 46 pdfium::span<const uint8_t> data); 47 void CRYPT_SHA384Finish(CRYPT_sha2_context* context, 48 pdfium::span<uint8_t, 48> digest); 49 DataVector<uint8_t> CRYPT_SHA384Generate(pdfium::span<const uint8_t> data); 50 51 void CRYPT_SHA512Start(CRYPT_sha2_context* context); 52 void CRYPT_SHA512Update(CRYPT_sha2_context* context, 53 pdfium::span<const uint8_t> data); 54 void CRYPT_SHA512Finish(CRYPT_sha2_context* context, 55 pdfium::span<uint8_t, 64> digest); 56 DataVector<uint8_t> CRYPT_SHA512Generate(pdfium::span<const uint8_t> data); 57 58 #endif // CORE_FDRM_FX_CRYPT_SHA_H_ 59