From 4e3cbeef83363425ddb9cc0d9691c8c1115a6929 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Thu, 18 Dec 2025 23:33:24 +0000 Subject: [PATCH] [crypto] Add support for ECDSA signatures Signed-off-by: Michael Brown --- src/crypto/ecdsa.c | 928 +++++++++++++++++++++++++++++++++++++ src/include/ipxe/ecdsa.h | 19 + src/include/ipxe/errfile.h | 1 + src/tests/ecdsa_test.c | 274 +++++++++++ src/tests/tests.c | 1 + 5 files changed, 1223 insertions(+) create mode 100644 src/crypto/ecdsa.c create mode 100644 src/include/ipxe/ecdsa.h create mode 100644 src/tests/ecdsa_test.c diff --git a/src/crypto/ecdsa.c b/src/crypto/ecdsa.c new file mode 100644 index 000000000..1e0571c7f --- /dev/null +++ b/src/crypto/ecdsa.c @@ -0,0 +1,928 @@ +/* + * Copyright (C) 2025 Michael Brown . + * + * 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 + * + * Elliptic curve digital signature algorithm (ECDSA) + * + * The elliptic curve public key format is documented in RFC 5480. + * The original private key format is documented in RFC 5915, and the + * generic container PKCS#8 format documented in RFC 5208. + * + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Disambiguate the various error causes */ +#define EINVAL_POINTSIZE \ + __einfo_error ( EINFO_EINVAL_POINTSIZE ) +#define EINFO_EINVAL_POINTSIZE \ + __einfo_uniqify ( EINFO_EINVAL, 0x01, "Invalid point size" ) +#define EINVAL_KEYSIZE \ + __einfo_error ( EINFO_EINVAL_KEYSIZE ) +#define EINFO_EINVAL_KEYSIZE \ + __einfo_uniqify ( EINFO_EINVAL, 0x02, "Invalid key size" ) +#define EINVAL_COMPRESSION \ + __einfo_error ( EINFO_EINVAL_COMPRESSION ) +#define EINFO_EINVAL_COMPRESSION \ + __einfo_uniqify ( EINFO_EINVAL, 0x03, "Invalid compression") +#define EINVAL_INFINITY \ + __einfo_error ( EINFO_EINVAL_INFINITY ) +#define EINFO_EINVAL_INFINITY \ + __einfo_uniqify ( EINFO_EINVAL, 0x04, "Point is infinity" ) +#define EINVAL_SIGNATURE \ + __einfo_error ( EINFO_EINVAL_SIGNATURE ) +#define EINFO_EINVAL_SIGNATURE \ + __einfo_uniqify ( EINFO_EINVAL, 0x05, "Invalid signature" ) + +/** An ECDSA key */ +struct ecdsa_key { + /** Elliptic curve */ + struct elliptic_curve *curve; + /** Public curve point */ + const void *public; + /** Private multiple of base curve point (if applicable) */ + const void *private; +}; + +/** ECDSA context */ +struct ecdsa_context { + /** Key */ + struct ecdsa_key key; + /** Big integer size */ + unsigned int size; + /** Digest algorithm */ + struct digest_algorithm *digest; + /** Digest length */ + size_t zlen; + + /** Dynamically allocated storage */ + void *dynamic; + /** Element 0 of modulus N (i.e. curve group order */ + bigint_element_t *modulus0; + /** Element 0 of constant N-2 (for Fermat's little theorem) */ + bigint_element_t *fermat0; + /** Element 0 of Montgomery constant R^2 mod N */ + bigint_element_t *square0; + /** Element 0 of constant 1 (in Montgomery form) */ + bigint_element_t *one0; + /** Element 0 of digest value "z" */ + bigint_element_t *z0; + /** Element 0 of random key "k" */ + bigint_element_t *k0; + /** Element 0 of signature value "r" */ + bigint_element_t *r0; + /** Element 0 of signature value "s" */ + bigint_element_t *s0; + /** Element 0 of temporary value */ + bigint_element_t *temp0; + /** Element 0 of product buffer */ + bigint_element_t *product0; + /** Curve point 1 */ + void *point1; + /** Curve point 2 */ + void *point2; + /** Scalar value */ + void *scalar; + /** HMAC_DRBG state for random value generation */ + struct hmac_drbg_state *drbg; +}; + +/** + * Parse ECDSA key + * + * @v key ECDSA key + * @v raw ASN.1 cursor + * @ret rc Return status code + */ +static int ecdsa_parse_key ( struct ecdsa_key *key, + const struct asn1_cursor *raw ) { + struct asn1_algorithm *algorithm; + struct asn1_cursor cursor; + struct asn1_cursor curve; + struct asn1_cursor private; + const uint8_t *compression; + int is_private; + int rc; + + /* Enter subjectPublicKeyInfo/ECPrivateKey */ + memcpy ( &cursor, raw, sizeof ( cursor ) ); + asn1_enter ( &cursor, ASN1_SEQUENCE ); + asn1_invalidate_cursor ( &curve ); + asn1_invalidate_cursor ( &private ); + + /* Determine key format */ + if ( asn1_type ( &cursor ) == ASN1_INTEGER ) { + + /* Private key */ + is_private = 1; + + /* Skip version */ + asn1_skip_any ( &cursor ); + + /* Parse privateKeyAlgorithm, if present */ + if ( asn1_type ( &cursor ) == ASN1_SEQUENCE ) { + + /* PKCS#8 format */ + DBGC ( key, "ECDSA %p is in PKCS#8 format\n", key ); + + /* Parse privateKeyAlgorithm */ + memcpy ( &curve, &cursor, sizeof ( curve ) ); + asn1_skip_any ( &cursor ); + + /* Enter privateKey */ + asn1_enter ( &cursor, ASN1_OCTET_STRING ); + + /* Enter ECPrivateKey */ + asn1_enter ( &cursor, ASN1_SEQUENCE ); + + /* Skip version */ + asn1_skip ( &cursor, ASN1_INTEGER ); + } + + /* Parse privateKey */ + memcpy ( &private, &cursor, sizeof ( private ) ); + asn1_enter ( &private, ASN1_OCTET_STRING ); + asn1_skip_any ( &cursor ); + + /* Parse parameters, if present */ + if ( asn1_type ( &cursor ) == ASN1_EXPLICIT_TAG ( 0 ) ) { + memcpy ( &curve, &cursor, sizeof ( curve ) ); + asn1_enter_any ( &curve ); + asn1_skip_any ( &cursor ); + } + + /* Enter publicKey */ + asn1_enter ( &cursor, ASN1_EXPLICIT_TAG ( 1 ) ); + + } else { + + /* Public key */ + is_private = 0; + + /* Parse algorithm */ + memcpy ( &curve, &cursor, sizeof ( curve ) ); + asn1_skip_any ( &cursor ); + } + + /* Enter publicKey */ + asn1_enter_bits ( &cursor, NULL ); + + /* Identify curve */ + if ( ( rc = asn1_curve_algorithm ( &curve, &algorithm ) ) != 0 ) { + DBGC ( key, "ECDSA %p unknown curve: %s\n", + key, strerror ( rc ) ); + DBGC_HDA ( key, 0, raw->data, raw->len ); + return rc; + } + key->curve = algorithm->curve; + DBGC ( key, "ECDSA %p is a %s (%s) %s key\n", key, algorithm->name, + key->curve->name, ( is_private ? "private" : "public" ) ); + + /* Check public key length */ + if ( cursor.len != ( sizeof ( *compression ) + + key->curve->pointsize ) ) { + DBGC ( key, "ECDSA %p invalid public key length %zd\n", + key, cursor.len ); + DBGC_HDA ( key, 0, raw->data, raw->len ); + return -EINVAL_POINTSIZE; + } + + /* Check that key is uncompressed */ + compression = cursor.data; + if ( *compression != ECDSA_UNCOMPRESSED ) { + DBGC ( key, "ECDSA %p invalid compression %#02x\n", + key, *compression ); + DBGC_HDA ( key, 0, raw->data, raw->len ); + return -EINVAL_COMPRESSION; + } + + /* Extract public curve point */ + key->public = ( cursor.data + sizeof ( *compression ) ); + DBGC ( key, "ECDSA %p public curve point:\n", key ); + DBGC_HDA ( key, 0, key->public, key->curve->pointsize ); + + /* Check that public key is not the point at infinity */ + if ( elliptic_is_infinity ( key->curve, key->public ) ) { + DBGC ( key, "ECDSA %p public curve point is infinity\n", key ); + return -EINVAL_INFINITY; + } + + /* Extract private key, if applicable */ + if ( is_private ) { + + /* Check private key length */ + if ( private.len != key->curve->keysize ) { + DBGC ( key, "ECDSA %p invalid private key length " + "%zd\n", key, private.len ); + DBGC_HDA ( key, 0, raw->data, raw->len ); + return -EINVAL_KEYSIZE; + } + + /* Extract private key */ + key->private = private.data; + DBGC ( key, "ECDSA %p private multiplier:\n", key ); + DBGC_HDA ( key, 0, key->private, key->curve->keysize ); + + } else { + + /* No private key */ + key->private = NULL; + } + + return 0; +} + +/** + * Parse ECDSA signature value + * + * @v ctx ECDSA context + * @v rs0 Element 0 of signature "r" or "s" value + * @v raw ASN.1 cursor + * @ret rc Return status code + */ +static int ecdsa_parse_signature ( struct ecdsa_context *ctx, + bigint_element_t *rs0, + const struct asn1_cursor *raw ) { + size_t keysize = ctx->key.curve->keysize; + unsigned int size = ctx->size; + bigint_t ( size ) __attribute__ (( may_alias )) *modulus = + ( ( void * ) ctx->modulus0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *rs = + ( ( void * ) rs0 ); + struct asn1_cursor cursor; + int rc; + + /* Enter integer */ + memcpy ( &cursor, raw, sizeof ( cursor ) ); + if ( ( rc = asn1_enter_unsigned ( &cursor ) ) != 0 ) { + DBGC ( ctx, "ECDSA %p invalid integer:\n", ctx ); + DBGC_HDA ( ctx, 0, raw->data, raw->len ); + return rc; + } + + /* Extract value */ + if ( cursor.len > keysize ) { + DBGC ( ctx, "ECDSA %p invalid signature value:\n", ctx ); + DBGC_HDA ( ctx, 0, raw->data, raw->len ); + return -EINVAL_KEYSIZE; + } + bigint_init ( rs, cursor.data, cursor.len ); + + /* Check that value is within the required range */ + if ( bigint_is_zero ( rs ) || bigint_is_geq ( rs, modulus ) ) { + DBGC ( ctx, "ECDSA %p out-of-range signature value:\n", ctx ); + DBGC_HDA ( ctx, 0, raw->data, raw->len ); + return -ERANGE; + } + + return 0; +} + +/** + * Prepend ECDSA signature value + * + * @v ctx ECDSA context + * @v rs0 Element 0 of signature "r" or "s" value + * @v builder ASN.1 builder + * @ret rc Return status code + */ +static int ecdsa_prepend_signature ( struct ecdsa_context *ctx, + bigint_element_t *rs0, + struct asn1_builder *builder ) { + size_t keysize = ctx->key.curve->keysize; + unsigned int size = ctx->size; + bigint_t ( size ) __attribute__ (( may_alias )) *rs = + ( ( void * ) rs0 ); + uint8_t buf[ 1 /* potential sign byte */ + keysize ]; + uint8_t *data; + size_t len; + int rc; + + /* Construct value */ + buf[0] = 0; + bigint_done ( rs, &buf[1], keysize ); + + /* Strip leading zeros */ + data = buf; + len = sizeof ( buf ); + while ( ( len > 1 ) && ( data[0] == 0 ) && ( data[1] < 0x80 ) ) { + data++; + len--; + } + + /* Prepend integer */ + if ( ( rc = asn1_prepend ( builder, ASN1_INTEGER, data, len ) ) != 0 ) + return rc; + + return 0; +} + +/** + * Allocate ECDSA context dynamic storage + * + * @v ctx ECDSA context + * @ret rc Return status code + */ +static int ecdsa_alloc ( struct ecdsa_context *ctx ) { + struct elliptic_curve *curve = ctx->key.curve; + size_t pointsize = curve->pointsize; + size_t keysize = curve->keysize; + unsigned int size = + bigint_required_size ( keysize + 1 /* for addition */ ); + struct { + bigint_t ( size ) modulus; + bigint_t ( size ) fermat; + bigint_t ( size ) square; + bigint_t ( size ) one; + bigint_t ( size ) z; + bigint_t ( size ) k; + bigint_t ( size ) r; + bigint_t ( size ) s; + bigint_t ( size ) temp; + bigint_t ( size * 2 ) product; + uint8_t point1[pointsize]; + uint8_t point2[pointsize]; + uint8_t scalar[keysize]; + struct hmac_drbg_state drbg; + } *dynamic; + + /* Allocate dynamic storage */ + dynamic = malloc ( sizeof ( *dynamic ) ); + if ( ! dynamic ) + return -ENOMEM; + + /* Populate context */ + ctx->size = size; + ctx->dynamic = dynamic; + ctx->modulus0 = dynamic->modulus.element; + ctx->fermat0 = dynamic->fermat.element; + ctx->square0 = dynamic->square.element; + ctx->one0 = dynamic->one.element; + ctx->z0 = dynamic->z.element; + ctx->k0 = dynamic->k.element; + ctx->r0 = dynamic->r.element; + ctx->s0 = dynamic->s.element; + ctx->temp0 = dynamic->temp.element; + ctx->product0 = dynamic->product.element; + ctx->point1 = dynamic->point1; + ctx->point2 = dynamic->point2; + ctx->scalar = dynamic->scalar; + ctx->drbg = &dynamic->drbg; + + return 0; +} + +/** + * Free ECDSA context dynamic storage + * + * @v ctx ECDSA context + */ +static void ecdsa_free ( struct ecdsa_context *ctx ) { + + /* Free dynamic storage */ + free ( ctx->dynamic ); +} + +/** + * Initialise ECDSA values + * + * @v ctx ECDSA context + * @v digest Digest algorithm + * @v value Digest value + */ +static void ecdsa_init_values ( struct ecdsa_context *ctx, + struct digest_algorithm *digest, + const void *value ) { + struct elliptic_curve *curve = ctx->key.curve; + unsigned int size = ctx->size; + bigint_t ( size ) __attribute__ (( may_alias )) *modulus = + ( ( void * ) ctx->modulus0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *fermat = + ( ( void * ) ctx->fermat0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *square = + ( ( void * ) ctx->square0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *one = + ( ( void * ) ctx->one0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *z = + ( ( void * ) ctx->z0 ); + bigint_t ( size * 2 ) __attribute__ (( may_alias )) *product = + ( ( void * ) ctx->product0 ); + static const uint8_t two_raw[] = { 2 }; + size_t zlen; + + /* Initialise modulus N */ + bigint_init ( modulus, curve->order, curve->keysize ); + DBGC2 ( ctx, "ECDSA %p N = %s\n", ctx, bigint_ntoa ( modulus ) ); + + /* Calculate N-2 (using Montgomery constant as temporary buffer) */ + bigint_copy ( modulus, fermat ); + bigint_init ( square, two_raw, sizeof ( two_raw ) ); + bigint_subtract ( square, fermat ); + + /* Calculate Montgomery constant */ + bigint_reduce ( modulus, square ); + DBGC2 ( ctx, "ECDSA %p R^2 = %s mod N\n", + ctx, bigint_ntoa ( square ) ); + + /* Construct one in Montgomery form */ + bigint_grow ( square, product ); + bigint_montgomery ( modulus, product, one ); + DBGC2 ( ctx, "ECDSA %p R = %s mod N\n", + ctx, bigint_ntoa ( one ) ); + + /* Initialise digest */ + ctx->digest = digest; + zlen = ctx->key.curve->keysize; + if ( zlen > digest->digestsize ) + zlen = digest->digestsize; + ctx->zlen = zlen; + bigint_init ( z, value, zlen ); + DBGC2 ( ctx, "ECDSA %p z = %s (%s)\n", + ctx, bigint_ntoa ( z ), digest->name ); +} + +/** + * Initialise ECDSA context + * + * @v ctx ECDSA context + * @v key Key + * @v digest Digest algorithm + * @v value Digest value + * @ret rc Return status code + */ +static int ecdsa_init ( struct ecdsa_context *ctx, + const struct asn1_cursor *key, + struct digest_algorithm *digest, + const void *value ) { + int rc; + + /* Parse key */ + if ( ( rc = ecdsa_parse_key ( &ctx->key, key ) ) != 0 ) + goto err_parse; + + /* Allocate dynamic storage */ + if ( ( rc = ecdsa_alloc ( ctx ) ) != 0 ) + goto err_alloc; + + /* Initialise values */ + ecdsa_init_values ( ctx, digest, value ); + + return 0; + + ecdsa_free ( ctx ); + err_alloc: + err_parse: + return rc; +} + +/** + * Invert ECDSA value + * + * @v ctx ECDSA context + * @v val0 Element 0 of value to invert + */ +static void ecdsa_invert ( struct ecdsa_context *ctx, + bigint_element_t *val0 ) { + unsigned int size = ctx->size; + bigint_t ( size ) __attribute__ (( may_alias )) *modulus = + ( ( void * ) ctx->modulus0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *fermat = + ( ( void * ) ctx->fermat0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *square = + ( ( void * ) ctx->square0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *one = + ( ( void * ) ctx->one0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *temp = + ( ( void * ) ctx->temp0 ); + bigint_t ( size * 2 ) __attribute__ (( may_alias )) *product = + ( ( void * ) ctx->product0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *val = + ( ( void * ) val0 ); + + /* Convert value to Montgomery form */ + bigint_multiply ( val, square, product ); + bigint_montgomery ( modulus, product, temp ); + + /* Invert value via Fermat's little theorem */ + bigint_copy ( one, val ); + bigint_ladder ( val, temp, fermat, bigint_mod_exp_ladder, modulus, + product ); +} + +/** + * Generate ECDSA "r" and "s" values + * + * @v ctx ECDSA context + * @v sig Signature + * @ret rc Return status code + */ +static int ecdsa_sign_rs ( struct ecdsa_context *ctx ) { + struct digest_algorithm *digest = ctx->digest; + struct elliptic_curve *curve = ctx->key.curve; + size_t pointsize = curve->pointsize; + size_t keysize = curve->keysize; + unsigned int size = ctx->size; + bigint_t ( size ) __attribute__ (( may_alias )) *modulus = + ( ( void * ) ctx->modulus0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *square = + ( ( void * ) ctx->square0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *one = + ( ( void * ) ctx->one0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *z = + ( ( void * ) ctx->z0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *k = + ( ( void * ) ctx->k0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *r = + ( ( void * ) ctx->r0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *s = + ( ( void * ) ctx->s0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *temp = + ( ( void * ) ctx->temp0 ); + bigint_t ( size * 2 ) __attribute__ (( may_alias )) *product = + ( ( void * ) ctx->product0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *x1 = + ( ( void * ) temp ); + void *point1 = ctx->point1; + void *scalar = ctx->scalar; + int rc; + + /* Loop until a suitable signature is generated */ + while ( 1 ) { + + /* Generate pseudo-random data */ + if ( ( rc = hmac_drbg_generate ( digest, ctx->drbg, NULL, 0, + scalar, keysize ) ) != 0 ) { + DBGC ( ctx, "ECDSA %p could not generate: %s\n", + ctx, strerror ( rc ) ); + return rc; + } + + /* Check suitability of pseudo-random data */ + bigint_init ( k, scalar, keysize ); + DBGC2 ( ctx, "ECDSA %p k = %s\n", + ctx, bigint_ntoa ( k ) ); + if ( bigint_is_zero ( k ) ) + continue; + if ( bigint_is_geq ( k, modulus ) ) + continue; + + /* Calculate (x1,y1) = k*G */ + elliptic_multiply ( curve, curve->base, scalar, point1 ); + bigint_init ( x1, point1, ( pointsize / 2 ) ); + DBGC2 ( ctx, "ECDSA %p x1 = %s mod N\n", + ctx, bigint_ntoa ( x1 ) ); + + /* Calculate r = x1 mod N */ + bigint_multiply ( x1, one, product ); + bigint_montgomery ( modulus, product, r ); + DBGC2 ( ctx, "ECDSA %p r = %s\n", + ctx, bigint_ntoa ( r ) ); + + /* Check suitability of r */ + if ( bigint_is_zero ( r ) ) + continue; + + /* Calculate k^-1 mod N (in Montgomery form) */ + ecdsa_invert ( ctx, k->element ); + DBGC2 ( ctx, "ECDSA %p (k^-1)R = %s mod N\n", + ctx, bigint_ntoa ( k ) ); + + /* Calculate r * dA */ + bigint_init ( temp, ctx->key.private, keysize ); + DBGC2 ( ctx, "ECDSA %p dA = %s\n", + ctx, bigint_ntoa ( temp ) ); + bigint_multiply ( r, temp, product ); + bigint_montgomery ( modulus, product, temp ); + bigint_multiply ( temp, square, product ); + bigint_montgomery ( modulus, product, temp ); + DBGC2 ( ctx, "ECDSA %p r*dA = %s mod N\n", + ctx, bigint_ntoa ( temp ) ); + + /* Calculate k^-1 * (z + r*dA) */ + bigint_add ( z, temp ); + DBGC2 ( ctx, "ECDSA %p z+r*dA = %s mod N\n", + ctx, bigint_ntoa ( temp ) ); + bigint_multiply ( k, temp, product ); + bigint_montgomery ( modulus, product, s ); + DBGC2 ( ctx, "ECDSA %p s = %s\n", + ctx, bigint_ntoa ( s ) ); + + /* Check suitability of s */ + if ( bigint_is_zero ( s ) ) + continue; + + return 0; + } +} + +/** + * Verify ECDSA "r" and "s" values + * + * @v ctx ECDSA context + * @v sig Signature + * @ret rc Return status code + */ +static int ecdsa_verify_rs ( struct ecdsa_context *ctx ) { + struct elliptic_curve *curve = ctx->key.curve; + size_t pointsize = curve->pointsize; + size_t keysize = curve->keysize; + const void *public = ctx->key.public; + unsigned int size = ctx->size; + bigint_t ( size ) __attribute__ (( may_alias )) *modulus = + ( ( void * ) ctx->modulus0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *one = + ( ( void * ) ctx->one0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *z = + ( ( void * ) ctx->z0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *r = + ( ( void * ) ctx->r0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *s = + ( ( void * ) ctx->s0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *temp = + ( ( void * ) ctx->temp0 ); + bigint_t ( size * 2 ) __attribute__ (( may_alias )) *product = + ( ( void * ) ctx->product0 ); + bigint_t ( size ) __attribute__ (( may_alias )) *u1 = + ( ( void * ) temp ); + bigint_t ( size ) __attribute__ (( may_alias )) *u2 = + ( ( void * ) temp ); + bigint_t ( size ) __attribute__ (( may_alias )) *x1 = + ( ( void * ) temp ); + void *point1 = ctx->point1; + void *point2 = ctx->point2; + void *scalar = ctx->scalar; + int valid; + int rc; + + DBGC2 ( ctx, "ECDSA %p r = %s\n", ctx, bigint_ntoa ( r ) ); + DBGC2 ( ctx, "ECDSA %p s = %s\n", ctx, bigint_ntoa ( s ) ); + + /* Calculate s^-1 mod N (in Montgomery form) */ + ecdsa_invert ( ctx, s->element ); + DBGC2 ( ctx, "ECDSA %p (s^-1)R = %s mod N\n", ctx, bigint_ntoa ( s ) ); + + /* Calculate u1 = (z * s^-1) mod N */ + bigint_multiply ( z, s, product ); + bigint_montgomery ( modulus, product, u1 ); + DBGC2 ( ctx, "ECDSA %p u1 = %s mod N\n", + ctx, bigint_ntoa ( u1 ) ); + bigint_done ( u1, scalar, keysize ); + + /* Calculate u1 * G */ + if ( ( rc = elliptic_multiply ( curve, curve->base, scalar, + point1 ) ) != 0 ) { + DBGC ( ctx, "ECDSA %p could not calculate u1*G: %s\n", + ctx, strerror ( rc ) ); + return rc; + } + + /* Calculate u2 = (r * s^-1) mod N */ + bigint_multiply ( r, s, product ); + bigint_montgomery ( modulus, product, u2 ); + bigint_done ( u2, scalar, keysize ); + DBGC2 ( ctx, "ECDSA %p u2 = %s mod N\n", + ctx, bigint_ntoa ( u2 ) ); + + /* Calculate u2 * Qa */ + if ( ( rc = elliptic_multiply ( curve, public, scalar, + point2 ) ) != 0 ) { + DBGC ( ctx, "ECDSA %p could not calculate u2*Qa: %s\n", + ctx, strerror ( rc ) ); + return rc; + } + + /* Calculate u1 * G + u2 * Qa */ + if ( ( rc = elliptic_add ( curve, point1, point2, point1 ) ) != 0 ) { + DBGC ( ctx, "ECDSA %p could not calculate u1*G+u2*Qa: %s\n", + ctx, strerror ( rc ) ); + return rc; + } + + /* Check that result is not the point at infinity */ + if ( elliptic_is_infinity ( curve, point1 ) ) { + DBGC ( ctx, "ECDSA %p result is point at infinity\n", ctx ); + return -EINVAL; + } + + /* Calculate x1 mod N */ + bigint_init ( x1, point1, ( pointsize / 2 ) ); + DBGC2 ( ctx, "ECDSA %p x1 = %s mod N\n", ctx, bigint_ntoa ( x1 ) ); + bigint_multiply ( x1, one, product ); + bigint_montgomery ( modulus, product, x1 ); + DBGC2 ( ctx, "ECDSA %p x1 = %s\n", ctx, bigint_ntoa ( x1 ) ); + + /* Check signature */ + bigint_subtract ( x1, r ); + valid = bigint_is_zero ( r ); + DBGC2 ( ctx, "ECDSA %p signature is%s valid\n", + ctx, ( valid ? "" : " not" ) ); + + return ( valid ? 0 : -EINVAL_SIGNATURE ); +} + +/** + * Encrypt using ECDSA + * + * @v key Key + * @v plaintext Plaintext + * @v ciphertext Ciphertext + * @ret rc Return status code + */ +static int ecdsa_encrypt ( const struct asn1_cursor *key __unused, + const struct asn1_cursor *plaintext __unused, + struct asn1_builder *ciphertext __unused ) { + + /* Not a defined operation for ECDSA */ + return -ENOTTY; +} + +/** + * Decrypt using ECDSA + * + * @v key Key + * @v ciphertext Ciphertext + * @v plaintext Plaintext + * @ret rc Return status code + */ +static int ecdsa_decrypt ( const struct asn1_cursor *key __unused, + const struct asn1_cursor *ciphertext __unused, + struct asn1_builder *plaintext __unused ) { + + /* Not a defined operation for ECDSA */ + return -ENOTTY; +} + +/** + * Sign digest value using ECDSA + * + * @v key Key + * @v digest Digest algorithm + * @v value Digest value + * @v signature Signature + * @ret rc Return status code + */ +static int ecdsa_sign ( const struct asn1_cursor *key, + struct digest_algorithm *digest, const void *value, + struct asn1_builder *signature ) { + struct ecdsa_context ctx; + int rc; + + /* Initialise context */ + if ( ( rc = ecdsa_init ( &ctx, key, digest, value ) ) != 0 ) + goto err_init; + + /* Fail unless we have a private key */ + if ( ! ctx.key.private ) { + rc = -ENOTTY; + goto err_no_key; + } + + /* Instantiate DRBG */ + hmac_drbg_instantiate ( digest, ctx.drbg, ctx.key.private, + ctx.key.curve->keysize, value, ctx.zlen ); + + /* Create signature */ + if ( ( rc = ecdsa_sign_rs ( &ctx ) ) != 0 ) + goto err_signature; + + /* Construct "r" and "s" values */ + if ( ( rc = ecdsa_prepend_signature ( &ctx, ctx.s0, signature ) ) != 0) + goto err_s; + if ( ( rc = ecdsa_prepend_signature ( &ctx, ctx.r0, signature ) ) != 0) + goto err_r; + if ( ( rc = asn1_wrap ( signature, ASN1_SEQUENCE ) ) != 0 ) + goto err_wrap; + + /* Free context */ + ecdsa_free ( &ctx ); + + return 0; + + err_wrap: + err_r: + err_s: + err_signature: + err_no_key: + ecdsa_free ( &ctx ); + err_init: + return rc; +} + +/** + * Verify signed digest using ECDSA + * + * @v key Key + * @v digest Digest algorithm + * @v value Digest value + * @v signature Signature + * @ret rc Return status code + */ +static int ecdsa_verify ( const struct asn1_cursor *key, + struct digest_algorithm *digest, const void *value, + const struct asn1_cursor *signature ) { + struct ecdsa_context ctx; + struct asn1_cursor cursor; + int rc; + + /* Initialise context */ + if ( ( rc = ecdsa_init ( &ctx, key, digest, value ) ) != 0 ) + goto err_init; + + /* Enter sequence */ + memcpy ( &cursor, signature, sizeof ( cursor ) ); + asn1_enter ( &cursor, ASN1_SEQUENCE ); + + /* Extract "r" and "s" values */ + if ( ( rc = ecdsa_parse_signature ( &ctx, ctx.r0, &cursor ) ) != 0 ) + goto err_r; + asn1_skip_any ( &cursor ); + if ( ( rc = ecdsa_parse_signature ( &ctx, ctx.s0, &cursor ) ) != 0 ) + goto err_s; + + /* Verify signature */ + if ( ( rc = ecdsa_verify_rs ( &ctx ) ) != 0 ) + goto err_verify; + + /* Free context */ + ecdsa_free ( &ctx ); + + return 0; + + err_verify: + err_s: + err_r: + ecdsa_free ( &ctx ); + err_init: + return rc; +} + +/** + * Check for matching ECDSA public/private key pair + * + * @v private_key Private key + * @v public_key Public key + * @ret rc Return status code + */ +static int ecdsa_match ( const struct asn1_cursor *private_key, + const struct asn1_cursor *public_key ) { + struct elliptic_curve *curve; + struct ecdsa_key privkey; + struct ecdsa_key pubkey; + int rc; + + /* Parse keys */ + if ( ( rc = ecdsa_parse_key ( &privkey, private_key ) ) != 0 ) + return rc; + if ( ( rc = ecdsa_parse_key ( &pubkey, public_key ) ) != 0 ) + return rc; + + /* Compare curves */ + if ( privkey.curve != pubkey.curve ) + return -ENOTTY; + curve = privkey.curve; + + /* Compare public curve points */ + if ( memcmp ( privkey.public, pubkey.public, curve->pointsize ) != 0 ) + return -ENOTTY; + + return 0; +} + +/** ECDSA public-key algorithm */ +struct pubkey_algorithm ecdsa_algorithm = { + .name = "ecdsa", + .encrypt = ecdsa_encrypt, + .decrypt = ecdsa_decrypt, + .sign = ecdsa_sign, + .verify = ecdsa_verify, + .match = ecdsa_match, +}; diff --git a/src/include/ipxe/ecdsa.h b/src/include/ipxe/ecdsa.h new file mode 100644 index 000000000..f55af3973 --- /dev/null +++ b/src/include/ipxe/ecdsa.h @@ -0,0 +1,19 @@ +#ifndef _IPXE_ECDSA_H +#define _IPXE_ECDSA_H + +/** @file + * + * Elliptic curve digital signature algorithm (ECDSA) + * + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include + +/** Uncompressed curve point */ +#define ECDSA_UNCOMPRESSED 0x04 + +extern struct pubkey_algorithm ecdsa_algorithm; + +#endif /* _IPXE_ECDSA_H */ diff --git a/src/include/ipxe/errfile.h b/src/include/ipxe/errfile.h index e8d010475..d97c5eca6 100644 --- a/src/include/ipxe/errfile.h +++ b/src/include/ipxe/errfile.h @@ -444,6 +444,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #define ERRFILE_weierstrass ( ERRFILE_OTHER | 0x00660000 ) #define ERRFILE_efi_cacert ( ERRFILE_OTHER | 0x00670000 ) #define ERRFILE_ecdhe ( ERRFILE_OTHER | 0x00680000 ) +#define ERRFILE_ecdsa ( ERRFILE_OTHER | 0x00690000 ) /** @} */ diff --git a/src/tests/ecdsa_test.c b/src/tests/ecdsa_test.c new file mode 100644 index 000000000..0ea039b1f --- /dev/null +++ b/src/tests/ecdsa_test.c @@ -0,0 +1,274 @@ +/* + * Copyright (C) 2025 Michael Brown . + * + * 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 + * + * ECDSA self-tests + * + * These test vectors are generated using openssl's ecparam, pkey, + * pkcs8, and dgst tools. + */ + +/* Forcibly enable assertions */ +#undef NDEBUG + +#include +#include +#include +#include +#include +#include +#include "pubkey_test.h" + +/** "Hello world" P-256 signature test (traditional private key) */ +PUBKEY_SIGN_TEST ( p256_hw_test, &ecdsa_algorithm, + PRIVATE ( 0x30, 0x77, 0x02, 0x01, 0x01, 0x04, 0x20, 0x5d, 0xc9, 0xbc, + 0x58, 0x82, 0x99, 0xaf, 0x56, 0x6a, 0x4a, 0x4d, 0xec, 0xce, + 0x9f, 0x6d, 0xfd, 0xb4, 0xfa, 0x5f, 0x8c, 0xd2, 0xfe, 0x5a, + 0x4b, 0x9b, 0x83, 0x0a, 0xe6, 0x86, 0x90, 0x13, 0x12, 0xa0, + 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, + 0x07, 0xa1, 0x44, 0x03, 0x42, 0x00, 0x04, 0x31, 0x20, 0x90, + 0xeb, 0xd1, 0x74, 0xc0, 0x88, 0x03, 0x97, 0x96, 0x67, 0x11, + 0xda, 0x74, 0xe9, 0x09, 0xd1, 0x64, 0x01, 0x26, 0x9b, 0x30, + 0x8c, 0x6a, 0xbe, 0xcf, 0x6f, 0x01, 0xd5, 0x86, 0xe2, 0xab, + 0x60, 0x8f, 0x5b, 0x60, 0x86, 0xc8, 0x2d, 0xee, 0xa7, 0x42, + 0x59, 0xd5, 0xdc, 0x3d, 0xb8, 0x13, 0x8f, 0x90, 0x26, 0xfc, + 0xf5, 0xce, 0xcb, 0xf9, 0x68, 0x91, 0x59, 0x87, 0xc6, 0x7d, + 0x2a ), + PUBLIC ( 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, + 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, + 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x31, 0x20, 0x90, + 0xeb, 0xd1, 0x74, 0xc0, 0x88, 0x03, 0x97, 0x96, 0x67, 0x11, + 0xda, 0x74, 0xe9, 0x09, 0xd1, 0x64, 0x01, 0x26, 0x9b, 0x30, + 0x8c, 0x6a, 0xbe, 0xcf, 0x6f, 0x01, 0xd5, 0x86, 0xe2, 0xab, + 0x60, 0x8f, 0x5b, 0x60, 0x86, 0xc8, 0x2d, 0xee, 0xa7, 0x42, + 0x59, 0xd5, 0xdc, 0x3d, 0xb8, 0x13, 0x8f, 0x90, 0x26, 0xfc, + 0xf5, 0xce, 0xcb, 0xf9, 0x68, 0x91, 0x59, 0x87, 0xc6, 0x7d, + 0x2a ), + PLAINTEXT ( 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, + 0x64, 0x0a ), + &sha256_algorithm, + SIGNATURE ( 0x30, 0x45, 0x02, 0x21, 0x00, 0xc4, 0xb5, 0xb9, 0x40, 0xf7, + 0x73, 0x9f, 0x77, 0x90, 0xa1, 0xa0, 0x0d, 0xc4, 0xd3, 0x1e, + 0x18, 0x08, 0xc0, 0xe9, 0xb1, 0xf5, 0x16, 0x71, 0xf0, 0x75, + 0x9f, 0xac, 0x5e, 0xeb, 0xca, 0x0d, 0x02, 0x02, 0x20, 0x32, + 0xb6, 0x77, 0x9e, 0x19, 0x1f, 0xde, 0x03, 0x1d, 0x8a, 0x29, + 0xe4, 0x97, 0xb9, 0x90, 0x1b, 0xff, 0xf3, 0x10, 0x8d, 0xc3, + 0x41, 0x4e, 0xc1, 0xef, 0x59, 0x37, 0xc3, 0xf7, 0xd5, 0xbe, + 0xb0 ) ); + +/** "Hello world" P-256 signature test (traditional private key, SHA-512) */ +PUBKEY_SIGN_TEST ( p256_hw_sha512_test, &ecdsa_algorithm, + PRIVATE ( 0x30, 0x77, 0x02, 0x01, 0x01, 0x04, 0x20, 0x5d, 0xc9, 0xbc, + 0x58, 0x82, 0x99, 0xaf, 0x56, 0x6a, 0x4a, 0x4d, 0xec, 0xce, + 0x9f, 0x6d, 0xfd, 0xb4, 0xfa, 0x5f, 0x8c, 0xd2, 0xfe, 0x5a, + 0x4b, 0x9b, 0x83, 0x0a, 0xe6, 0x86, 0x90, 0x13, 0x12, 0xa0, + 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, + 0x07, 0xa1, 0x44, 0x03, 0x42, 0x00, 0x04, 0x31, 0x20, 0x90, + 0xeb, 0xd1, 0x74, 0xc0, 0x88, 0x03, 0x97, 0x96, 0x67, 0x11, + 0xda, 0x74, 0xe9, 0x09, 0xd1, 0x64, 0x01, 0x26, 0x9b, 0x30, + 0x8c, 0x6a, 0xbe, 0xcf, 0x6f, 0x01, 0xd5, 0x86, 0xe2, 0xab, + 0x60, 0x8f, 0x5b, 0x60, 0x86, 0xc8, 0x2d, 0xee, 0xa7, 0x42, + 0x59, 0xd5, 0xdc, 0x3d, 0xb8, 0x13, 0x8f, 0x90, 0x26, 0xfc, + 0xf5, 0xce, 0xcb, 0xf9, 0x68, 0x91, 0x59, 0x87, 0xc6, 0x7d, + 0x2a ), + PUBLIC ( 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, + 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, + 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x31, 0x20, 0x90, + 0xeb, 0xd1, 0x74, 0xc0, 0x88, 0x03, 0x97, 0x96, 0x67, 0x11, + 0xda, 0x74, 0xe9, 0x09, 0xd1, 0x64, 0x01, 0x26, 0x9b, 0x30, + 0x8c, 0x6a, 0xbe, 0xcf, 0x6f, 0x01, 0xd5, 0x86, 0xe2, 0xab, + 0x60, 0x8f, 0x5b, 0x60, 0x86, 0xc8, 0x2d, 0xee, 0xa7, 0x42, + 0x59, 0xd5, 0xdc, 0x3d, 0xb8, 0x13, 0x8f, 0x90, 0x26, 0xfc, + 0xf5, 0xce, 0xcb, 0xf9, 0x68, 0x91, 0x59, 0x87, 0xc6, 0x7d, + 0x2a ), + PLAINTEXT ( 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, + 0x64, 0x0a ), + &sha512_algorithm, + SIGNATURE ( 0x30, 0x45, 0x02, 0x21, 0x00, 0x8b, 0x62, 0xf5, 0xda, 0x49, + 0x41, 0x85, 0xfe, 0xac, 0x1c, 0x6f, 0xf3, 0x43, 0xd9, 0xa6, + 0x03, 0x89, 0x5f, 0x1c, 0x5a, 0xd4, 0x8e, 0xdd, 0x4a, 0x58, + 0x48, 0x8f, 0x07, 0xb3, 0x85, 0xdb, 0x07, 0x02, 0x20, 0x7c, + 0x82, 0x77, 0x9c, 0x03, 0xd1, 0xd9, 0x2f, 0xf9, 0x1e, 0xcb, + 0x06, 0x29, 0x37, 0x0c, 0x96, 0x17, 0xc7, 0xc4, 0x3c, 0x0d, + 0x4a, 0x2e, 0x85, 0xe1, 0x13, 0x29, 0xc2, 0x46, 0x2d, 0x2f, + 0x85 ) ); + +/** Random message P-256 signature test (PKCS#8 private key) */ +PUBKEY_SIGN_TEST ( p256_random_test, &ecdsa_algorithm, + PRIVATE ( 0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, + 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, + 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x04, 0x6d, 0x30, + 0x6b, 0x02, 0x01, 0x01, 0x04, 0x20, 0x5d, 0xc9, 0xbc, 0x58, + 0x82, 0x99, 0xaf, 0x56, 0x6a, 0x4a, 0x4d, 0xec, 0xce, 0x9f, + 0x6d, 0xfd, 0xb4, 0xfa, 0x5f, 0x8c, 0xd2, 0xfe, 0x5a, 0x4b, + 0x9b, 0x83, 0x0a, 0xe6, 0x86, 0x90, 0x13, 0x12, 0xa1, 0x44, + 0x03, 0x42, 0x00, 0x04, 0x31, 0x20, 0x90, 0xeb, 0xd1, 0x74, + 0xc0, 0x88, 0x03, 0x97, 0x96, 0x67, 0x11, 0xda, 0x74, 0xe9, + 0x09, 0xd1, 0x64, 0x01, 0x26, 0x9b, 0x30, 0x8c, 0x6a, 0xbe, + 0xcf, 0x6f, 0x01, 0xd5, 0x86, 0xe2, 0xab, 0x60, 0x8f, 0x5b, + 0x60, 0x86, 0xc8, 0x2d, 0xee, 0xa7, 0x42, 0x59, 0xd5, 0xdc, + 0x3d, 0xb8, 0x13, 0x8f, 0x90, 0x26, 0xfc, 0xf5, 0xce, 0xcb, + 0xf9, 0x68, 0x91, 0x59, 0x87, 0xc6, 0x7d, 0x2a ), + PUBLIC ( 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, + 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, + 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x31, 0x20, 0x90, + 0xeb, 0xd1, 0x74, 0xc0, 0x88, 0x03, 0x97, 0x96, 0x67, 0x11, + 0xda, 0x74, 0xe9, 0x09, 0xd1, 0x64, 0x01, 0x26, 0x9b, 0x30, + 0x8c, 0x6a, 0xbe, 0xcf, 0x6f, 0x01, 0xd5, 0x86, 0xe2, 0xab, + 0x60, 0x8f, 0x5b, 0x60, 0x86, 0xc8, 0x2d, 0xee, 0xa7, 0x42, + 0x59, 0xd5, 0xdc, 0x3d, 0xb8, 0x13, 0x8f, 0x90, 0x26, 0xfc, + 0xf5, 0xce, 0xcb, 0xf9, 0x68, 0x91, 0x59, 0x87, 0xc6, 0x7d, + 0x2a ), + PLAINTEXT ( 0xe0, 0xf0, 0x1b, 0xd1, 0x95, 0xe0, 0x4b, 0xd1, 0xf7, 0x4a, + 0x18, 0xca, 0x60, 0x02, 0x29, 0xc1, 0x58, 0x03, 0xf8, 0xc2, + 0x3c, 0x0f, 0x86, 0x55, 0xc5, 0x22, 0x88, 0x7e, 0x1f, 0x6c, + 0x4e, 0x14, 0xb5, 0x7e, 0x52, 0x02, 0x40, 0xb2, 0x70, 0xa6, + 0x60, 0xef, 0xcb, 0xab, 0xbd, 0x9d, 0xbe, 0x88, 0x41, 0x3f, + 0x0f, 0x44, 0x24, 0xdf, 0x86, 0x1c, 0x41, 0x39, 0x38, 0xf9, + 0x7e, 0x26, 0xcb, 0x1e, 0x31, 0xa6, 0x4c, 0x38, 0x3f, 0x55, + 0xb6, 0xbe, 0x8a, 0xc8, 0xbd, 0xa8, 0x96, 0xef, 0x68, 0xf8, + 0x4e, 0x28, 0xd2, 0x4d, 0x31, 0x02, 0xb8, 0x4c, 0xb6, 0xd2, + 0x34, 0x1d, 0x95, 0xfa, 0x37, 0xfe, 0x29, 0x1f, 0xe3, 0x06, + 0x19, 0xe7, 0x21, 0x16, 0x3d, 0xa0, 0xdb, 0xb6, 0x9b, 0x5b, + 0x61, 0x28, 0x6f, 0x32, 0xe1, 0x5e, 0x6e, 0xe1, 0x11, 0xb3, + 0x28, 0x82, 0xf1, 0xf4, 0x75, 0x1f, 0x0d, 0x7c, 0x0d, 0x8f, + 0x43, 0x55, 0xc9, 0xad, 0x9d, 0x8a, 0xd4, 0xf9, 0xb4, 0xd5, + 0x9a, 0xda, 0xd7, 0xe3, 0x15, 0xcb, 0x09, 0x2c, 0x2d, 0xc4, + 0x9d, 0x9c, 0x34, 0xe1, 0x84, 0x1c, 0xbd, 0x38, 0x3b, 0x0e, + 0xa3, 0xfd, 0x78, 0x29, 0x79, 0xa9, 0x73, 0x36, 0x8f, 0xab, + 0xef, 0xb3, 0x4e, 0x93, 0xc8, 0x18, 0xba, 0x3a, 0x3d, 0x78, + 0x0f, 0x47, 0xa4, 0x0b, 0x87, 0xfd, 0x00, 0x11, 0x34, 0x41, + 0x6c, 0x01, 0x4e, 0xdd, 0x77, 0x81, 0x21, 0x54, 0x64, 0x60, + 0xa1, 0xe0, 0xc9, 0x4b, 0xc6, 0xc6, 0x07, 0x52, 0xa2, 0xba, + 0x51, 0xc9, 0xa0, 0xa8, 0xf6, 0xa4, 0xdf, 0x37, 0x80, 0xc5, + 0x03, 0x1d, 0x9c, 0x85, 0xf9, 0x93, 0x4d, 0x1b, 0xec, 0x1c, + 0x1f, 0xab, 0xb2, 0xfa, 0x0c, 0xc5, 0x59, 0x2e, 0xf7, 0x01, + 0xc6, 0x3b, 0x39, 0x0e, 0x90, 0x92, 0x42, 0x76, 0x80, 0xfe, + 0x67, 0x05, 0xdd, 0x80, 0xf4, 0x06 ), + &sha256_algorithm, + SIGNATURE ( 0x30, 0x44, 0x02, 0x20, 0x12, 0x9c, 0x69, 0xb2, 0x61, 0x49, + 0x95, 0x0e, 0xab, 0x3b, 0x8f, 0x15, 0x31, 0x97, 0x30, 0x73, + 0x68, 0xe1, 0xcb, 0x32, 0x45, 0xe7, 0x9c, 0x8f, 0x50, 0xa0, + 0x84, 0x89, 0x16, 0xf8, 0x59, 0xe9, 0x02, 0x20, 0x7f, 0x46, + 0x97, 0xf1, 0x99, 0x45, 0x09, 0x0f, 0x80, 0xe1, 0xf3, 0xfc, + 0x62, 0x6b, 0x35, 0xb1, 0x4c, 0xdb, 0x48, 0x0b, 0xff, 0x48, + 0xae, 0x3a, 0x5b, 0x20, 0x48, 0x31, 0x91, 0x88, 0xba, + 0xde ) ); + +/** Random message P-384 signature test (PKCS#8 private key) */ +PUBKEY_SIGN_TEST ( p384_random_test, &ecdsa_algorithm, + PRIVATE ( 0x30, 0x81, 0xb6, 0x02, 0x01, 0x00, 0x30, 0x10, 0x06, 0x07, + 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x05, 0x2b, + 0x81, 0x04, 0x00, 0x22, 0x04, 0x81, 0x9e, 0x30, 0x81, 0x9b, + 0x02, 0x01, 0x01, 0x04, 0x30, 0x5f, 0xc5, 0x6a, 0x6e, 0xf2, + 0x91, 0xf2, 0x1e, 0xa9, 0x80, 0xd3, 0xfd, 0xd3, 0x3a, 0x0b, + 0x6b, 0xd0, 0x8c, 0xdb, 0x4a, 0xd9, 0x72, 0x6d, 0x56, 0x11, + 0x43, 0x10, 0x64, 0x45, 0x20, 0x6e, 0x3a, 0x77, 0x99, 0x55, + 0x72, 0x86, 0x30, 0xd4, 0x69, 0xd6, 0x10, 0x2d, 0x2d, 0x46, + 0x72, 0x1f, 0x3e, 0xa1, 0x64, 0x03, 0x62, 0x00, 0x04, 0x6a, + 0xb2, 0x1a, 0x29, 0x54, 0x71, 0x27, 0x3c, 0x02, 0x3e, 0x3b, + 0x4c, 0x0e, 0x69, 0x4f, 0xe3, 0xdf, 0x8d, 0x02, 0x76, 0x7c, + 0x12, 0x2e, 0x31, 0xe7, 0x8b, 0xc8, 0x09, 0x1e, 0x0a, 0x5d, + 0x98, 0x0a, 0x3c, 0x43, 0xc6, 0xd4, 0x95, 0x53, 0xc0, 0x53, + 0x91, 0xdd, 0x70, 0x03, 0x77, 0xe7, 0xe8, 0xe9, 0x04, 0x46, + 0x7e, 0x9a, 0x8f, 0x0b, 0x21, 0x30, 0x06, 0x80, 0xa1, 0xc1, + 0xff, 0x20, 0x91, 0x68, 0x1f, 0x84, 0x01, 0x52, 0x28, 0xb8, + 0x18, 0xb0, 0xcc, 0x33, 0x9c, 0x44, 0x98, 0xa3, 0x59, 0x92, + 0x36, 0xe3, 0x46, 0x72, 0xa8, 0x86, 0xec, 0x69, 0x24, 0x29, + 0x29, 0xc0, 0xca, 0x2b, 0x40 ), + PUBLIC ( 0x30, 0x76, 0x30, 0x10, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, + 0x3d, 0x02, 0x01, 0x06, 0x05, 0x2b, 0x81, 0x04, 0x00, 0x22, + 0x03, 0x62, 0x00, 0x04, 0x6a, 0xb2, 0x1a, 0x29, 0x54, 0x71, + 0x27, 0x3c, 0x02, 0x3e, 0x3b, 0x4c, 0x0e, 0x69, 0x4f, 0xe3, + 0xdf, 0x8d, 0x02, 0x76, 0x7c, 0x12, 0x2e, 0x31, 0xe7, 0x8b, + 0xc8, 0x09, 0x1e, 0x0a, 0x5d, 0x98, 0x0a, 0x3c, 0x43, 0xc6, + 0xd4, 0x95, 0x53, 0xc0, 0x53, 0x91, 0xdd, 0x70, 0x03, 0x77, + 0xe7, 0xe8, 0xe9, 0x04, 0x46, 0x7e, 0x9a, 0x8f, 0x0b, 0x21, + 0x30, 0x06, 0x80, 0xa1, 0xc1, 0xff, 0x20, 0x91, 0x68, 0x1f, + 0x84, 0x01, 0x52, 0x28, 0xb8, 0x18, 0xb0, 0xcc, 0x33, 0x9c, + 0x44, 0x98, 0xa3, 0x59, 0x92, 0x36, 0xe3, 0x46, 0x72, 0xa8, + 0x86, 0xec, 0x69, 0x24, 0x29, 0x29, 0xc0, 0xca, 0x2b, 0x40 ), + PLAINTEXT ( 0xe0, 0xf0, 0x1b, 0xd1, 0x95, 0xe0, 0x4b, 0xd1, 0xf7, 0x4a, + 0x18, 0xca, 0x60, 0x02, 0x29, 0xc1, 0x58, 0x03, 0xf8, 0xc2, + 0x3c, 0x0f, 0x86, 0x55, 0xc5, 0x22, 0x88, 0x7e, 0x1f, 0x6c, + 0x4e, 0x14, 0xb5, 0x7e, 0x52, 0x02, 0x40, 0xb2, 0x70, 0xa6, + 0x60, 0xef, 0xcb, 0xab, 0xbd, 0x9d, 0xbe, 0x88, 0x41, 0x3f, + 0x0f, 0x44, 0x24, 0xdf, 0x86, 0x1c, 0x41, 0x39, 0x38, 0xf9, + 0x7e, 0x26, 0xcb, 0x1e, 0x31, 0xa6, 0x4c, 0x38, 0x3f, 0x55, + 0xb6, 0xbe, 0x8a, 0xc8, 0xbd, 0xa8, 0x96, 0xef, 0x68, 0xf8, + 0x4e, 0x28, 0xd2, 0x4d, 0x31, 0x02, 0xb8, 0x4c, 0xb6, 0xd2, + 0x34, 0x1d, 0x95, 0xfa, 0x37, 0xfe, 0x29, 0x1f, 0xe3, 0x06, + 0x19, 0xe7, 0x21, 0x16, 0x3d, 0xa0, 0xdb, 0xb6, 0x9b, 0x5b, + 0x61, 0x28, 0x6f, 0x32, 0xe1, 0x5e, 0x6e, 0xe1, 0x11, 0xb3, + 0x28, 0x82, 0xf1, 0xf4, 0x75, 0x1f, 0x0d, 0x7c, 0x0d, 0x8f, + 0x43, 0x55, 0xc9, 0xad, 0x9d, 0x8a, 0xd4, 0xf9, 0xb4, 0xd5, + 0x9a, 0xda, 0xd7, 0xe3, 0x15, 0xcb, 0x09, 0x2c, 0x2d, 0xc4, + 0x9d, 0x9c, 0x34, 0xe1, 0x84, 0x1c, 0xbd, 0x38, 0x3b, 0x0e, + 0xa3, 0xfd, 0x78, 0x29, 0x79, 0xa9, 0x73, 0x36, 0x8f, 0xab, + 0xef, 0xb3, 0x4e, 0x93, 0xc8, 0x18, 0xba, 0x3a, 0x3d, 0x78, + 0x0f, 0x47, 0xa4, 0x0b, 0x87, 0xfd, 0x00, 0x11, 0x34, 0x41, + 0x6c, 0x01, 0x4e, 0xdd, 0x77, 0x81, 0x21, 0x54, 0x64, 0x60, + 0xa1, 0xe0, 0xc9, 0x4b, 0xc6, 0xc6, 0x07, 0x52, 0xa2, 0xba, + 0x51, 0xc9, 0xa0, 0xa8, 0xf6, 0xa4, 0xdf, 0x37, 0x80, 0xc5, + 0x03, 0x1d, 0x9c, 0x85, 0xf9, 0x93, 0x4d, 0x1b, 0xec, 0x1c, + 0x1f, 0xab, 0xb2, 0xfa, 0x0c, 0xc5, 0x59, 0x2e, 0xf7, 0x01, + 0xc6, 0x3b, 0x39, 0x0e, 0x90, 0x92, 0x42, 0x76, 0x80, 0xfe, + 0x67, 0x05, 0xdd, 0x80, 0xf4, 0x06 ), + &sha512_algorithm, + SIGNATURE ( 0x30, 0x64, 0x02, 0x30, 0x17, 0xa4, 0x1f, 0x5d, 0xb7, 0x6d, + 0x85, 0xd0, 0x1f, 0xf1, 0x28, 0x5c, 0x45, 0x27, 0x15, 0x30, + 0x9c, 0xb5, 0xe3, 0x36, 0x70, 0xf3, 0x82, 0xa6, 0x1c, 0x4a, + 0xb7, 0x87, 0xc7, 0x86, 0xae, 0x5d, 0x99, 0xba, 0xa9, 0x9a, + 0x2b, 0x25, 0x0a, 0xd2, 0x25, 0x1d, 0xe9, 0x78, 0xff, 0x2d, + 0x8d, 0xd6, 0x02, 0x30, 0x55, 0x95, 0x5d, 0x4d, 0x74, 0x3d, + 0xd1, 0xae, 0xf0, 0x6d, 0x6a, 0x77, 0x40, 0xa6, 0x57, 0xb2, + 0xb1, 0xee, 0xef, 0xd5, 0xcf, 0xeb, 0xa8, 0x82, 0x22, 0x1a, + 0xaf, 0x1e, 0xbc, 0x51, 0x59, 0xb7, 0x66, 0xbb, 0x83, 0x38, + 0x8b, 0x28, 0xa7, 0x84, 0x4e, 0x5c, 0x0a, 0x07, 0x56, 0x75, + 0x01, 0x8a ) ); + +/** + * Perform ECDSA self-tests + * + */ +static void ecdsa_test_exec ( void ) { + + pubkey_sign_ok ( &p256_hw_test ); + pubkey_sign_ok ( &p256_hw_sha512_test ); + pubkey_sign_ok ( &p256_random_test ); + pubkey_sign_ok ( &p384_random_test ); +} + +/** ECDSA self-test */ +struct self_test ecdsa_test __self_test = { + .name = "ecdsa", + .exec = ecdsa_test_exec, +}; + +/* Drag in required ASN.1 OID-identified algorithms */ +REQUIRING_SYMBOL ( ecdsa_test ); +REQUIRE_OBJECT ( oid_p256 ); +REQUIRE_OBJECT ( oid_p384 ); diff --git a/src/tests/tests.c b/src/tests/tests.c index daf646798..130eba949 100644 --- a/src/tests/tests.c +++ b/src/tests/tests.c @@ -91,3 +91,4 @@ REQUIRE_OBJECT ( p384_test ); REQUIRE_OBJECT ( efi_siglist_test ); REQUIRE_OBJECT ( cpio_test ); REQUIRE_OBJECT ( fdt_test ); +REQUIRE_OBJECT ( ecdsa_test );