projects / libgit2.git / blame
| Commit | Line | Data |
|---|---|---|
| 2dfd1294 ET |
1 | /*** |
| 2 | * Copyright 2017 Marc Stevens <marc@marc-stevens.nl>, Dan Shumow <danshu@microsoft.com> | |
| 3 | * Distributed under the MIT Software License. | |
| 4 | * See accompanying file LICENSE.txt or copy at | |
| 5 | * https://opensource.org/licenses/MIT | |
| 6 | ***/ | |
| 7 | ||
| c9efa995 | 8 | /* |
| 2dfd1294 ET |
9 | // this file was generated by the 'parse_bitrel' program in the tools section |
| 10 | // using the data files from directory 'tools/data/3565' | |
| 11 | // | |
| 12 | // sha1_dvs contains a list of SHA-1 Disturbance Vectors (DV) to check | |
| 13 | // dvType, dvK and dvB define the DV: I(K,B) or II(K,B) (see the paper) | |
| 14 | // dm[80] is the expanded message block XOR-difference defined by the DV | |
| 15 | // testt is the step to do the recompression from for collision detection | |
| 16 | // maski and maskb define the bit to check for each DV in the dvmask returned by ubc_check | |
| 17 | // | |
| 18 | // ubc_check takes as input an expanded message block and verifies the unavoidable bitconditions for all listed DVs | |
| 19 | // it returns a dvmask where each bit belonging to a DV is set if all unavoidable bitconditions for that DV have been met | |
| 20 | // thus one needs to do the recompression check for each DV that has its bit set | |
| c9efa995 | 21 | */ |
| 2dfd1294 | 22 | |
| 63d86c27 PS |
23 | #ifndef SHA1DC_UBC_CHECK_H |
| 24 | #define SHA1DC_UBC_CHECK_H | |
| 2dfd1294 | 25 | |
| c9efa995 ET |
26 | #if defined(__cplusplus) |
| 27 | extern "C" { | |
| 28 | #endif | |
| 29 | ||
| 63d86c27 | 30 | #ifndef SHA1DC_NO_STANDARD_INCLUDES |
| 2dfd1294 | 31 | #include <stdint.h> |
| 63d86c27 | 32 | #endif |
| 2dfd1294 ET |
33 | |
| 34 | #define DVMASKSIZE 1 | |
| 35 | typedef struct { int dvType; int dvK; int dvB; int testt; int maski; int maskb; uint32_t dm[80]; } dv_info_t; | |
| 36 | extern dv_info_t sha1_dvs[]; | |
| 37 | void ubc_check(const uint32_t W[80], uint32_t dvmask[DVMASKSIZE]); | |
| 38 | ||
| 39 | #define DOSTORESTATE58 | |
| 40 | #define DOSTORESTATE65 | |
| 41 | ||
| c9efa995 ET |
42 | #define CHECK_DVMASK(_DVMASK) (0 != _DVMASK[0]) |
| 43 | ||
| 44 | #if defined(__cplusplus) | |
| 45 | } | |
| 46 | #endif | |
| 2dfd1294 | 47 | |
| 63d86c27 PS |
48 | #ifdef SHA1DC_CUSTOM_TRAILING_INCLUDE_UBC_CHECK_H |
| 49 | #include SHA1DC_CUSTOM_TRAILING_INCLUDE_UBC_CHECK_H | |
| 50 | #endif | |
| 51 | ||
| 52 | #endif |