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https://github.com/brain-hackers/u-boot-brain
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51c14cd128
This allows a board to configure verified boot within the SPL using a FIT or FIT with external data. It also allows the SPL to perform signature verification without needing relocation. The board configuration will need to add the following feature defines: CONFIG_SPL_CRYPTO_SUPPORT CONFIG_SPL_HASH_SUPPORT CONFIG_SPL_SHA256 In this example, SHA256 is the only selected hashing algorithm. And the following booleans: CONFIG_SPL=y CONFIG_SPL_DM=y CONFIG_SPL_LOAD_FIT=y CONFIG_SPL_FIT=y CONFIG_SPL_OF_CONTROL=y CONFIG_SPL_OF_LIBFDT=y CONFIG_SPL_FIT_SIGNATURE=y Signed-off-by: Teddy Reed <teddy.reed@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Andreas Dannenberg <dannenberg@ti.com> Acked-by: Sumit Garg <sumit.garg@nxp.com>
41 lines
793 B
C
41 lines
793 B
C
/*
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* (C) Copyright 2014 Freescale Semiconductor, Inc.
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* Author: Ruchika Gupta <ruchika.gupta@freescale.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <common.h>
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#include <dm.h>
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#include <u-boot/rsa-mod-exp.h>
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int mod_exp_sw(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
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struct key_prop *prop, uint8_t *out)
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{
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int ret = 0;
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ret = rsa_mod_exp_sw(sig, sig_len, prop, out);
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if (ret) {
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debug("%s: RSA failed to verify: %d\n", __func__, ret);
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return ret;
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}
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return 0;
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}
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static const struct mod_exp_ops mod_exp_ops_sw = {
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.mod_exp = mod_exp_sw,
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};
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U_BOOT_DRIVER(mod_exp_sw) = {
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.name = "mod_exp_sw",
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.id = UCLASS_MOD_EXP,
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.ops = &mod_exp_ops_sw,
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.flags = DM_FLAG_PRE_RELOC,
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};
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U_BOOT_DEVICE(mod_exp_sw) = {
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.name = "mod_exp_sw",
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};
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