mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-30 19:48:19 +00:00
cf2d07f004
This driver is safe to use in SPL without relocation. Denying
DM_FLAG_PRE_RELOC prevents its usability for verifying the main U-Boot
or other artifacts from the SPL unless needless enabling the full driver
set (SPL_OF_PLATDATA).
Fixes: 17e117408571 ("drivers: crypto: rsa_mod_exp: avoid DM_FLAG_PRE_RELOC")
CC: Heinrich Schuchardt <xypron.glpk@gmx.de>
CC: Marek Vasut <marex@denx.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
41 lines
820 B
C
41 lines
820 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2014 Freescale Semiconductor, Inc.
|
|
* Author: Ruchika Gupta <ruchika.gupta@freescale.com>
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <log.h>
|
|
#include <u-boot/rsa-mod-exp.h>
|
|
|
|
static int mod_exp_sw(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
|
|
struct key_prop *prop, uint8_t *out)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret = rsa_mod_exp_sw(sig, sig_len, prop, out);
|
|
if (ret) {
|
|
debug("%s: RSA failed to verify: %d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct mod_exp_ops mod_exp_ops_sw = {
|
|
.mod_exp = mod_exp_sw,
|
|
};
|
|
|
|
U_BOOT_DRIVER(mod_exp_sw) = {
|
|
.name = "mod_exp_sw",
|
|
.id = UCLASS_MOD_EXP,
|
|
.ops = &mod_exp_ops_sw,
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|
|
|
|
U_BOOT_DEVICE(mod_exp_sw) = {
|
|
.name = "mod_exp_sw",
|
|
};
|