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https://github.com/cr-marcstevens/sha1collisiondetection PR: 217733 Submitted by: jharris@widomaker.com (maintainer) Reviewed by: mat Approved by: swills (mentor, implicit) Differential Revision: https://reviews.freebsd.org/D9998
17 lines
851 B
Plaintext
17 lines
851 B
Plaintext
This library and command line tool were designed as near drop-in
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replacements for common SHA-1 libraries and sha1sum. They will compute
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the SHA-1 hash of any given file and additionally will detect
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cryptanalytic collision attacks against SHA-1 present in each file.
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It is very fast and takes less than twice the amount of time as
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regular SHA-1.
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There are two programs: sha1dcsum and sha1dcsum_partialcoll.
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The first program, sha1dcsum, will detect and warn for files that were
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generated with a cryptanalytic SHA-1 collision attack like the one
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documented at https://shattered.io/. The second program,
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sha1dcsum_partialcoll, will detect and warn for files that were
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generated with a cryptanalytic collision attack against reduced-
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round SHA-1 (of which there are a few examples so far).
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WWW: https://github.com/cr-marcstevens/sha1collisiondetection
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