Application: Elliptic Curve Cryptographie (gcc) now with riscvp2

Reinhard · 2015-05-12 11:12

Hi Forum
found a ECC Demo for ARM, but run also on P1.

If anyone interesst, I attach the side - project.

Is a little bit slow, but on P2 . . . ;-)

Mark_T · 2015-05-14 06:01

Ah, that's prompted me to upload some old code I had for this (Prop ASM/Spin) to the Obex:
http://obex.parallax.com/object/817

I am not even sure if its working, but I think so. All 5 NIST curves are implemented.

Reinhard · 2023-05-20 13:08

@Reinhard said:
Hi Forum
found a ECC Demo for ARM, but run also on P1.

If anyone interesst, I attach the side - project.

Is a little bit slow, but on P2 . . . ;-)

After a long time I decided to try the riscvp2 compiler and run this demo on P2.
I'm excited.

RossH · 2023-05-21 05:40

Needed a small ANSI C tweak for Catalina, but here it is for the P1 and P2.

Ok on the P2, but very slow on the P1!

Ross.

Reinhard · 2023-05-21 10:34

@RossH
Thank you for this info. I try it next week, when I am at home.

Reinhard · 2023-05-22 08:23

On first look I see not many difference in execution speed.
I use the given binary, compiled with catalina and the second binary, compiled with riscvp2.
I am not familiar with catalina and get problems at compile time.
But I think I can solve this, something with an Exportvariabe $LCCDIR. Have a look into the load_catalina.sh script
So I use the given binary.
If I have more time, I get closer in catalina.
-- sorry I know this is actually an item for the P2 thread --

RossH · 2023-05-25 06:47

@Reinhard said:
I am not familiar with catalina and get problems at compile time.
But I think I can solve this, something with an Exportvariabe $LCCDIR.

See the file README.Linux. Specifically:

To use Catalina, open a command window, and execute the folowing command from
a bash shell (assuming you installed it to /opt/catalina):

LCCDIR=/opt/catalina
export LCCDIR
source $LCCDIR/use_catalina

This will set up the LCCDIR environment variable and add the Catalina binary
directories to your path. You may want to add these commands to your profile
so you don't need to execute them every time you open a command window.

Ross.

Reinhard · 2023-05-25 10:45

@RossH
Thank you, that was the missing link (-- and now I found it also in the README --)
Now I am prepared to prog with catalina.
Reinhard

Application: Elliptic Curve Cryptographie (gcc) now with riscvp2

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