123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960 |
- // 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 <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_DRVINFO(fsl_rsa) = {
- .name = "fsl_rsa_mod_exp",
- };
|