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 8/* 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 21*/ 22 23#ifndef UBC_CHECK_H 24#define UBC_CHECK_H 25 26#if defined(__cplusplus) 27extern "C" { 28#endif 29 30#include <stdint.h> 31 32#define DVMASKSIZE 1 33typedef struct { int dvType; int dvK; int dvB; int testt; int maski; int maskb; uint32_t dm[80]; } dv_info_t; 34extern dv_info_t sha1_dvs[]; 35void ubc_check(const uint32_t W[80], uint32_t dvmask[DVMASKSIZE]); 36 37#define DOSTORESTATE58 38#define DOSTORESTATE65 39 40#define CHECK_DVMASK(_DVMASK) (0 != _DVMASK[0]) 41 42#if defined(__cplusplus) 43} 44#endif 45 46#endif /* UBC_CHECK_H */