nneonneo/sha1collider
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Build two PDFs that have different content but identical SHA1 sums.
5 mentions on Hacker News by 3 people: 2 stories, 3 comments · first 2017-02-25 · latest 2020-01-07
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…a bit. The SHAttered attack (classical collision) can be used in practice - for example, my project https://github.com/nneonneo/sha1collider exploits their collision to turn any two PDFs into documents with identical SHA-1 hashes.
comment by nneonneo · 2020-01-07 · in The first chosen-prefix collision for SHA-1 -
Also relevant, a PDF SHA-1 collider: https://github.com/nneonneo/sha1collider
comment by saagarjha · 2018-12-20 · in Script to do instant MD5 collisions of any pair of PDFs -
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Generate two PDFs with different contents but identical SHA1 hashesstory by Since57 · 2017-03-01 · 0 comments
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Shameless plug: I built my own version of this to collide arbitrary PDFs: https://github.com/nneonneo/sha1collider My version is similar to this, but removes the 64kb JPEG limit and allows for colliding multi-page PDFs.
comment by nneonneo · 2017-02-25 · in SHA-1 collider: Make your own colliding PDFs -
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Show HN: SHA1 PDF collision generatorstory by nneonneo · 2017-02-25 · 0 comments