2018-05-06 21:58:06 +00:00
|
|
|
// SPDX-License-Identifier: GPL-2.0+
|
2015-01-23 10:31:55 +00:00
|
|
|
/*
|
|
|
|
|
* (C) Copyright 2014 Freescale Semiconductor, Inc.
|
|
|
|
|
* Author: Ruchika Gupta <ruchika.gupta@freescale.com>
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <config.h>
|
|
|
|
|
#include <common.h>
|
|
|
|
|
#include <dm.h>
|
|
|
|
|
#include <asm/types.h>
|
|
|
|
|
#include <malloc.h>
|
|
|
|
|
#include "jobdesc.h"
|
|
|
|
|
#include "desc.h"
|
|
|
|
|
#include "jr.h"
|
|
|
|
|
#include "rsa_caam.h"
|
|
|
|
|
#include <u-boot/rsa-mod-exp.h>
|
|
|
|
|
|
|
|
|
|
int fsl_mod_exp(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
|
|
|
|
|
struct key_prop *prop, uint8_t *out)
|
|
|
|
|
{
|
|
|
|
|
uint32_t keylen;
|
|
|
|
|
struct pk_in_params pkin;
|
|
|
|
|
uint32_t desc[MAX_CAAM_DESCSIZE];
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
/* Length in bytes */
|
|
|
|
|
keylen = prop->num_bits / 8;
|
|
|
|
|
|
|
|
|
|
pkin.a = sig;
|
|
|
|
|
pkin.a_siz = sig_len;
|
|
|
|
|
pkin.n = prop->modulus;
|
|
|
|
|
pkin.n_siz = keylen;
|
|
|
|
|
pkin.e = prop->public_exponent;
|
|
|
|
|
pkin.e_siz = prop->exp_len;
|
|
|
|
|
|
|
|
|
|
inline_cnstr_jobdesc_pkha_rsaexp(desc, &pkin, out, sig_len);
|
|
|
|
|
|
|
|
|
|
ret = run_descriptor_jr(desc);
|
|
|
|
|
if (ret) {
|
|
|
|
|
debug("%s: RSA failed to verify: %d\n", __func__, ret);
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct mod_exp_ops fsl_mod_exp_ops = {
|
|
|
|
|
.mod_exp = fsl_mod_exp,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
U_BOOT_DRIVER(fsl_rsa_mod_exp) = {
|
|
|
|
|
.name = "fsl_rsa_mod_exp",
|
|
|
|
|
.id = UCLASS_MOD_EXP,
|
|
|
|
|
.ops = &fsl_mod_exp_ops,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
U_BOOT_DEVICE(fsl_rsa) = {
|
|
|
|
|
.name = "fsl_rsa_mod_exp",
|
|
|
|
|
};
|
