1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2014 Freescale Semiconductor, Inc.
4  * Author: Ruchika Gupta <ruchika.gupta@freescale.com>
5  */
6 
7 #include <config.h>
8 #include <common.h>
9 #include <dm.h>
10 #include <u-boot/rsa-mod-exp.h>
11 
12 int mod_exp_sw(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
13 		struct key_prop *prop, uint8_t *out)
14 {
15 	int ret = 0;
16 
17 	ret = rsa_mod_exp_sw(sig, sig_len, prop, out);
18 	if (ret) {
19 		debug("%s: RSA failed to verify: %d\n", __func__, ret);
20 		return ret;
21 	}
22 
23 	return 0;
24 }
25 
26 static const struct mod_exp_ops mod_exp_ops_sw = {
27 	.mod_exp	= mod_exp_sw,
28 };
29 
30 U_BOOT_DRIVER(mod_exp_sw) = {
31 	.name	= "mod_exp_sw",
32 	.id	= UCLASS_MOD_EXP,
33 	.ops	= &mod_exp_ops_sw,
34 	.flags	= DM_FLAG_PRE_RELOC,
35 };
36 
37 U_BOOT_DEVICE(mod_exp_sw) = {
38 	.name = "mod_exp_sw",
39 };
40