u-boot/drivers/crypto/rsa_mod_exp/mod_exp_sw.c
Ruchika Gupta 31d2b4fd90 DM: crypto/rsa_mod_exp: Add rsa Modular Exponentiation DM driver
Add a new rsa uclass for performing modular exponentiation and implement
the software driver basing on this uclass.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:58 -07:00

39 lines
764 B
C

/*
* (C) Copyright 2014 Freescale Semiconductor, Inc.
* Author: Ruchika Gupta <ruchika.gupta@freescale.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <dm.h>
#include <u-boot/rsa-mod-exp.h>
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,
};
U_BOOT_DEVICE(mod_exp_sw) = {
.name = "mod_exp_sw",
};