On 2020-02-09 23:19, Sebastian Andrzej Siewior wrote:
[...]
My primar motivation to use SHA1 for checksumming (by default) instead
of MD5 is not the additional security bits but performance. On a decent
x86 box the SHA1 performance is almost the same as MD5's but with
acceleration it outperforms MD5.
The other alternative would be to go for xxHash64 [0] which has the
superior performance but provides a non-cryptographic hash so I though
SHA1 would be better here.
[...]
With respect to *both* speed and security, wouldn't BLAKE3 be a better,
modern alternative if we're looking at checksumming?
It's "[r]eleased into the public domain with CC0 1.0. Alternatively, it
is
licensed under the Apache License 2.0". And the performance (see the
chart
at https://github.com/BLAKE3-team/BLAKE3) is *impressive* ...
Kind regards, Markus
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