From Collisions to Chosen-Prefix Collisions Application to Full SHA-1 https://eprint.iacr.org/2019/459.pdf
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Chosen-prefix collisions on SHA-1 are practical. Stop using SHA-1 *now*.
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Replying to @angrymofo
HMAC-MD5 is fine. Plain MD5 is not.
10:02 AM - 10 May 2019
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