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d5440b15c4
Summary: Move the third-party sha1collisiondetection code from clib/sha1 to third-party/sha1dc. This helps isolate third-party code from our own internally developed code. This also updates the code to use the same include paths and library names as used by the sha1collisiondetection's upstream Makefile, which would be needed to link against a version of sha1collisiondetection installed locally. Test Plan: Confirmed "make local" succeeds. All of the tests pass, except for test-check-commit-hg, which complains about the fact that some of this third-party code contains multiple empty lines in a row. It doesn't seem straightforward to update test-check-commit to ignore this third-party code, but these test failures shouldn't affect any future commits. Reviewers: #fbhgext, ryanmce Reviewed By: #fbhgext, ryanmce Differential Revision: https://phab.mercurial-scm.org/D281
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/***
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* Copyright 2017 Marc Stevens <marc@marc-stevens.nl>, Dan Shumow <danshu@microsoft.com>
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* Distributed under the MIT Software License.
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* See accompanying file LICENSE.txt or copy at
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* https://opensource.org/licenses/MIT
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***/
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/*
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// this file was generated by the 'parse_bitrel' program in the tools section
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// using the data files from directory 'tools/data/3565'
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//
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// sha1_dvs contains a list of SHA-1 Disturbance Vectors (DV) to check
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// dvType, dvK and dvB define the DV: I(K,B) or II(K,B) (see the paper)
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// dm[80] is the expanded message block XOR-difference defined by the DV
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// testt is the step to do the recompression from for collision detection
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// maski and maskb define the bit to check for each DV in the dvmask returned by ubc_check
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//
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// ubc_check takes as input an expanded message block and verifies the unavoidable bitconditions for all listed DVs
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// it returns a dvmask where each bit belonging to a DV is set if all unavoidable bitconditions for that DV have been met
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// thus one needs to do the recompression check for each DV that has its bit set
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*/
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#ifndef SHA1DC_UBC_CHECK_H
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#define SHA1DC_UBC_CHECK_H
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#include <stdint.h>
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#define DVMASKSIZE 1
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typedef struct { int dvType; int dvK; int dvB; int testt; int maski; int maskb; uint32_t dm[80]; } dv_info_t;
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extern dv_info_t sha1_dvs[];
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void ubc_check(const uint32_t W[80], uint32_t dvmask[DVMASKSIZE]);
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#define DOSTORESTATE58
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#define DOSTORESTATE65
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#define CHECK_DVMASK(_DVMASK) (0 != _DVMASK[0])
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#if defined(__cplusplus)
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}
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#endif
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#endif
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