u-boot/arch/arm/cpu/armv8/sha256_ce_glue.c
Loic Poulain 0fcc1c76d1 armv8 SHA-256 using ARMv8 Crypto Extensions
This patch adds support for the SHA-256 Secure Hash Algorithm for CPUs
that have support for the SHA-256 part of the ARM v8 Crypto Extensions.

It greatly improves sha-256 based operations, about 17x faster on iMX8M
evk board. ~12ms vs ~208ms for a 20MiB kernel sha-256 verification.

asm implementation is a simplified version of the Linux version (from
Ard Biesheuvel).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
2022-06-27 13:36:28 -04:00

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C

// SPDX-License-Identifier: GPL-2.0-only
/*
* sha256_ce_glue.c - SHA-256 secure hash using ARMv8 Crypto Extensions
*
* Copyright (C) 2022 Linaro Ltd <loic.poulain@linaro.org>
*/
#include <common.h>
#include <u-boot/sha256.h>
extern void sha256_armv8_ce_process(uint32_t state[8], uint8_t const *src,
uint32_t blocks);
void sha256_process(sha256_context *ctx, const unsigned char *data,
unsigned int blocks)
{
if (!blocks)
return;
sha256_armv8_ce_process(ctx->state, data, blocks);
}