Nicolas Boichat ecd0d1b576 rsa: Further optimization of multiplications for Cortex-M0 ...

In RSA, we often need to actually compute (a*b)+c+d: provide some
assembly optimized functions for that.

With -O3, 3072-bit exponent, lower verification time from 104 ms to
88 ms on STM32F072 @48Mhz.

BRANCH=poppy
BUG=b:35647963
BUG=b:77608104
TEST=On staff, flash, verification successful
TEST=make test-rsa, make test-rsa3
TEST=make BOARD=hammer test-utils test-rsa3, test on board

Change-Id: I80e8a7258d091e4f6adea11797729ac657dfd85d
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1071411
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

2018-05-29 06:02:19 -07:00

..

cortex-m

lpc/espi: convert ec chip code to use granular option

2018-05-22 21:56:39 -07:00

cortex-m0

rsa: Further optimization of multiplications for Cortex-M0

2018-05-29 06:02:19 -07:00

host

host: add __hw_clock_source_read

2018-05-14 15:32:47 -07:00

minute-ia

stm32/usb: Add HOOK_USB_PM_CHANGE, called when USB is resumed/suspended

2018-02-02 10:17:30 -08:00

nds32

it83xx: system: print out message if reset cause is unknown

2018-05-28 00:53:29 -07:00