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A comment on Choosing a hash function for 2030 and beyond: SHA-2 vs. SHA-3 vs. BLAKE3. Parent comment

Re:Choosing a hash function for 2030 and beyond: SHA-2 vs. S... by coldpie on Tuesday November 25, 2025 @12:19PM (#46048097)
The difference is "for a given message M1". In the 2nd requirement, you may choose both M1 and M2. For the 1st requirement, you are given M1 and must find M2.
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