On Tue, Jun 1, 2021 at 8:02 PM Niels Möller wrote:
> Maamoun TK writes:
> If I
> read the latest patch correctly, you also don't keep any state besides
> the MSGx registers?
>
Right, everything is done in the same context of each round in the latest
patch, nothing kept beyond or after.
> >
Maamoun TK writes:
>> Great speedup! Any idea why openssl is still slightly faster?
>>
>
> Sure, OpenSSL implementation uses a loop inside SH1 update function which
> eliminates the constant initialization and state loading/sotring for each
> block while nettle does that for every block
On Sun, May 23, 2021 at 10:52 AM Niels Möller wrote:
> Maamoun TK writes:
>
> > This patch optimizes SHA1 compress function for arm64 architecture by
> > taking advantage of SHA-1 instructions of Armv8 crypto extension.
> > The SHA-1 instructions:
> > SHA1C: SHA1 hash update (choose)
> > SHA1H:
Maamoun TK writes:
Looks pretty good. A few comments and questions below.
> This patch optimizes SHA1 compress function for arm64 architecture by
> taking advantage of SHA-1 instructions of Armv8 crypto extension.
> The SHA-1 instructions:
> SHA1C: SHA1 hash update (choose)
> SHA1H: SHA1 fixed
I've mentioned it in the README file.
---
arm64/README | 7 +++
arm64/crypto/sha1-compress.asm | 6 --
2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/arm64/README b/arm64/README
index d2745d57..206bb773 100644
--- a/arm64/README
+++ b/arm64/README
@@
On Thu, May 20, 2021 at 9:16 PM Niels Möller wrote:
> Maamoun TK writes:
>
> > I've written the patch from scratch while keeping in mind how to use the
> > SHA-1 instructions of Arm64 crypto extension from sha1-arm.c in Jeffrey's
> > repository.
>
> If that is the case, avoid phrases like
Maamoun TK writes:
> I've written the patch from scratch while keeping in mind how to use the
> SHA-1 instructions of Arm64 crypto extension from sha1-arm.c in Jeffrey's
> repository.
If that is the case, avoid phrases like "based on" which are easily
misread as implying it's a derived work in
On Fri, May 14, 2021 at 3:42 PM Simo Sorce wrote:
> you added the standard GNU License to these files, but the repository
> you mention has no license at all (red flag), and looking at the code
> it points to on which these files are "based" the current license if
> ASL 2.0
>
> How much are your
Hi Maamoun,
you added the standard GNU License to these files, but the repository
you mention has no license at all (red flag), and looking at the code
it points to on which these files are "based" the current license if
ASL 2.0
How much are your patches "based" on the SHA-Intrinsic source?
The
This patch optimizes SHA1 compress function for arm64 architecture by
taking advantage of SHA-1 instructions of Armv8 crypto extension.
The SHA-1 instructions:
SHA1C: SHA1 hash update (choose)
SHA1H: SHA1 fixed rotate
SHA1M: SHA1 hash update (majority)
SHA1P: SHA1 hash update (parity)
SHA1SU0:
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