There is a working SHA-1 and SHA-256 implementation using x86_64 asm and
also SHA-NI in mORMot 2.
Numbers are very high, e.g. 2GB/s on my Core i5 13500.
Since there is no SHA opcode in FPC asm yet (neither in Delphi), I am
using hardcoded "db" arrays for SHA-NI instructions.
See
https://
True, that's fair. Just having this feature for the sake of compiling
the "hash" package more efficiently is... well... favouritism?! Or just
a feature that has a single purpose.
Kit
On 16/09/2023 17:45, Florian Klämpfl via fpc-devel wrote:
Am 16.09.2023 um 17:45 schrieb J. Gareth Moreton
> Am 16.09.2023 um 17:45 schrieb J. Gareth Moreton via fpc-devel
> :
>
> I missed this post - thanks Florian!
>
> Indeed, SHA-1 is deprecated at least as far as being a cryptographic
> algorithm is concerned, but it still has some uses in data verification in a
> similar vein to MD5. I know
> assembly version of SHA-1 for x86_64
Another example which I thought is beautiful in form and simplicity (I
don't know how it compares for performance):
https://github.com/nayuki/Nayuki-web-published-code/blob/master/fast-sha1-hash-implementation-in-x86-assembly/sha1-fast-x8664.S
___
I missed this post - thanks Florian!
Indeed, SHA-1 is deprecated at least as far as being a cryptographic
algorithm is concerned, but it still has some uses in data verification
in a similar vein to MD5. I know git uses it internally so server
branches can't be corrupted.
I have probably sp
> OpenSSL x86 64-bit assembly code
>
https://github.com/openssl/openssl/blob/master/crypto/sha/asm/sha1-x86_64.pl
To generate plain assembly from the OpenSSL perl asm script requires
downloading these files to the same folder:
https://github.com/openssl/openssl/tree/master/crypto/perlasm
_
Thanks for the resources - these will prove very useful! Intel and AMD
processors also have specialised SHA instructions later on. I know the
AMD Zen supports them - not sure the earliest Intel models though.
Currently I'm sticking with pure SSE2 since this is the latest
instruction set that
J. Gareth Moreton via fpc-devel wrote:
> So this past week I've been building on Rika's work by adding an
> assembly version of SHA-1 for x86_64 to complement Rika's i386 version.
> So far I've successfully made a version that runs twice as fast as the
> Pascal code. I hoped to go even faster by
Am 16.09.23 um 15:13 schrieb J. Gareth Moreton via fpc-devel:
Hi everyone,
So this past week I've been building on Rika's work by adding an
assembly version of SHA-1 for x86_64 to complement Rika's i386 version.
So far I've successfully made a version that runs twice as fast as the
Pascal cod
Hi everyone,
So this past week I've been building on Rika's work by adding an
assembly version of SHA-1 for x86_64 to complement Rika's i386 version.
So far I've successfully made a version that runs twice as fast as the
Pascal code. I hoped to go even faster by making use of the SSE2
instr
10 matches
Mail list logo
