Subject: Re: difference in key calculations for ssh
To: Todd Vierling <firstname.lastname@example.org>
From: Andrew Brown <email@example.com>
Date: 05/25/2000 17:58:20
>: >My guess would be for the same reasons rc5des is significantly faster
>: >on Intel. My understanding is that the Intel is much faster at certain
>: >instructions (shifts?) that are heavily used by the encryption code.
>: i dunno if it's shifts...i always figured it was intel being better at
>: integer arthmetic than sparcs.
>It's bitwise rotates, for one. SPARCs have no such beasts.
that's something i always thought was missing from c: a bitwise rotate
primitive. i mean...it's had a shift primitive for how long?
>It's also that there is a very highly optimised assembly gmp innards for x86
>IIRC, SPARC in ssh uses the C versions of all the gmp stuff....
ah yes. that will make a difference too. hmmm.......
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