Re: [boost] [hash2] Question about cryptographic guarantees of hash_append_unordered_range

10 Dec 2024

      On 10.12.24 08:29, Kostas Savvidis via Boost wrote:
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On 8 Dec 2024, at 23:19, Peter Dimov via Boost  wrote:
Vinnie Falco wrote:
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On Sun, Dec 8, 2024 at 11:27 AM Ivan Matek via Boost

wrote:
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...sum is commutative.
Bitwise XOR and modular unsigned multiplication are also commutative.
Bitwise xor has the problem that xoring two equal values yields 0, so
the sequences [1], [1, 1, 1], [1, 2, 2] and so on all hash to the same thing.
And addition gives the same result for [3] , [2,1], [1,1,1] etc.
No, because the elements themselves are not added together.  Only their 
hashes are.

-- 
Rainer Deyke - rainerd@eldwood.com