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[crypto] Add definitions and tests for the NIST P-256 elliptic curve

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-01-22 13:07:23 +00:00
parent be9ce49076
commit bc5f3dbe3e
9 changed files with 325 additions and 0 deletions
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47
src/crypto/mishmash/oid_p256.c Normal file
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/*
* Copyright (C) 2025 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <byteswap.h>
#include <ipxe/p256.h>
#include <ipxe/asn1.h>
#include <ipxe/tls.h>
/** "prime256v1" object identifier */
static uint8_t oid_prime256v1[] = { ASN1_OID_PRIME256V1 };
/** "prime256v1" OID-identified algorithm */
struct asn1_algorithm prime256v1_algorithm __asn1_algorithm = {
.name = "prime256v1",
.curve = &p256_curve,
.oid = ASN1_CURSOR ( oid_prime256v1 ),
};
/** P-256 named curve */
struct tls_named_curve tls_secp256r1_named_curve __tls_named_curve ( 01 ) = {
.curve = &p256_curve,
.code = htons ( TLS_NAMED_CURVE_SECP256R1 ),
.format = TLS_POINT_FORMAT_UNCOMPRESSED,
.pre_master_secret_len = P256_LEN,
};

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src/crypto/p256.c Normal file
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/*
* Copyright (C) 2025 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/** @file
*
* NIST P-256 elliptic curve
*
*/
#include <ipxe/p256.h>
/** P-256 field prime */
static const uint8_t p256_prime[P256_LEN] = {
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
/** P-256 constant "a" */
static const uint8_t p256_a[P256_LEN] = {
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc
};
/** P-256 constant "b" */
static const uint8_t p256_b[P256_LEN] = {
0x5a, 0xc6, 0x35, 0xd8, 0xaa, 0x3a, 0x93, 0xe7, 0xb3, 0xeb, 0xbd,
0x55, 0x76, 0x98, 0x86, 0xbc, 0x65, 0x1d, 0x06, 0xb0, 0xcc, 0x53,
0xb0, 0xf6, 0x3b, 0xce, 0x3c, 0x3e, 0x27, 0xd2, 0x60, 0x4b
};
/** P-256 base point */
static const uint8_t p256_base[ P256_LEN * 2 ] = {
0x6b, 0x17, 0xd1, 0xf2, 0xe1, 0x2c, 0x42, 0x47, 0xf8, 0xbc, 0xe6,
0xe5, 0x63, 0xa4, 0x40, 0xf2, 0x77, 0x03, 0x7d, 0x81, 0x2d, 0xeb,
0x33, 0xa0, 0xf4, 0xa1, 0x39, 0x45, 0xd8, 0x98, 0xc2, 0x96, 0x4f,
0xe3, 0x42, 0xe2, 0xfe, 0x1a, 0x7f, 0x9b, 0x8e, 0xe7, 0xeb, 0x4a,
0x7c, 0x0f, 0x9e, 0x16, 0x2b, 0xce, 0x33, 0x57, 0x6b, 0x31, 0x5e,
0xce, 0xcb, 0xb6, 0x40, 0x68, 0x37, 0xbf, 0x51, 0xf5
};
/** P-256 elliptic curve */
WEIERSTRASS_CURVE ( p256, p256_curve, P256_LEN,
p256_prime, p256_a, p256_b, p256_base );