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Diffstat (limited to '')
| -rw-r--r-- | regress/es384.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/regress/es384.c b/regress/es384.c new file mode 100644 index 0000000..b55ce01 --- /dev/null +++ b/regress/es384.c @@ -0,0 +1,213 @@ +/* + * Copyright (c) 2022 Yubico AB. All rights reserved. + * Use of this source code is governed by a BSD-style + * license that can be found in the LICENSE file. + * SPDX-License-Identifier: BSD-2-Clause + */ + +#undef NDEBUG + +#include <assert.h> +#include <string.h> + +#define _FIDO_INTERNAL + +#include <fido.h> +#include <fido/es384.h> + +#include <openssl/bio.h> +#include <openssl/pem.h> + +#define ASSERT_NOT_NULL(e) assert((e) != NULL) +#define ASSERT_NULL(e) assert((e) == NULL) +#define ASSERT_INVAL(e) assert((e) == FIDO_ERR_INVALID_ARGUMENT) +#define ASSERT_OK(e) assert((e) == FIDO_OK) + +static const char short_x[] = \ +"-----BEGIN PUBLIC KEY-----\n" +"MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEAAZ/VVCUmFU6aH9kJdDnUHCCglkatFTX\n" +"onMwIvNYyS8BW/HOoZiOQLs2Hg+qifwaP1pHKILzCVfFmWuZMhxhtmjNXFuOPDnS\n" +"Wa1PMdkCoWXA2BbXxnqL9v36gIOcFBil\n" +"-----END PUBLIC KEY-----"; + +static const char short_y[] = \ +"-----BEGIN PUBLIC KEY-----\n" +"MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEuDpRBAg87cnWVhxbWnaWlnj100w9pm5k\n" +"6T4eYToISaIhEK70TnGwULHX0+qHCYEGACOM7B/ZJbqjo6I7MIXaKZLemGi+tqvy\n" +"ajBAsTVSyrYBLQjTMMcaFmYmsxvFx7pK\n" +"-----END PUBLIC KEY-----\n"; + +static const char brainpoolP384r1[] = \ +"-----BEGIN PUBLIC KEY-----\n" +"MHowFAYHKoZIzj0CAQYJKyQDAwIIAQELA2IABFKswbBzqqyZ4h1zz8rivqHzJxAO\n" +"XC2aLyC9x5gwBM7GVu8k6jkX7VypRpg3yyCneiIQ+vVCNXgbDchJ0cPVuhwm3Zru\n" +"AK49dezUPahWF0YiJRFVeV+KyB/MEaaZvinzqw==\n" +"-----END PUBLIC KEY-----\n"; + +static const char secp384r1[] = \ +"-----BEGIN PUBLIC KEY-----\n" +"MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEdJN9DoqPtTNAOmjnECHBIqnJgyBW0rct\n" +"tbUSqQjb6UG2lldmrQJbgCP/ywuXvkkJl4yfXxOr0UP3rgcnqTVA1/46s2TG+R5u\n" +"NSQbCM1JPQuvTyFlAn5mdR8ZJJ8yPBQm\n" +"-----END PUBLIC KEY-----\n"; + +static const unsigned char brainpoolP384r1_raw[] = { + 0x04, 0x52, 0xac, 0xc1, 0xb0, 0x73, 0xaa, 0xac, + 0x99, 0xe2, 0x1d, 0x73, 0xcf, 0xca, 0xe2, 0xbe, + 0xa1, 0xf3, 0x27, 0x10, 0x0e, 0x5c, 0x2d, 0x9a, + 0x2f, 0x20, 0xbd, 0xc7, 0x98, 0x30, 0x04, 0xce, + 0xc6, 0x56, 0xef, 0x24, 0xea, 0x39, 0x17, 0xed, + 0x5c, 0xa9, 0x46, 0x98, 0x37, 0xcb, 0x20, 0xa7, + 0x7a, 0x22, 0x10, 0xfa, 0xf5, 0x42, 0x35, 0x78, + 0x1b, 0x0d, 0xc8, 0x49, 0xd1, 0xc3, 0xd5, 0xba, + 0x1c, 0x26, 0xdd, 0x9a, 0xee, 0x00, 0xae, 0x3d, + 0x75, 0xec, 0xd4, 0x3d, 0xa8, 0x56, 0x17, 0x46, + 0x22, 0x25, 0x11, 0x55, 0x79, 0x5f, 0x8a, 0xc8, + 0x1f, 0xcc, 0x11, 0xa6, 0x99, 0xbe, 0x29, 0xf3, + 0xab, +}; + +static const unsigned char secp384r1_raw[] = { + 0x04, 0x74, 0x93, 0x7d, 0x0e, 0x8a, 0x8f, 0xb5, + 0x33, 0x40, 0x3a, 0x68, 0xe7, 0x10, 0x21, 0xc1, + 0x22, 0xa9, 0xc9, 0x83, 0x20, 0x56, 0xd2, 0xb7, + 0x2d, 0xb5, 0xb5, 0x12, 0xa9, 0x08, 0xdb, 0xe9, + 0x41, 0xb6, 0x96, 0x57, 0x66, 0xad, 0x02, 0x5b, + 0x80, 0x23, 0xff, 0xcb, 0x0b, 0x97, 0xbe, 0x49, + 0x09, 0x97, 0x8c, 0x9f, 0x5f, 0x13, 0xab, 0xd1, + 0x43, 0xf7, 0xae, 0x07, 0x27, 0xa9, 0x35, 0x40, + 0xd7, 0xfe, 0x3a, 0xb3, 0x64, 0xc6, 0xf9, 0x1e, + 0x6e, 0x35, 0x24, 0x1b, 0x08, 0xcd, 0x49, 0x3d, + 0x0b, 0xaf, 0x4f, 0x21, 0x65, 0x02, 0x7e, 0x66, + 0x75, 0x1f, 0x19, 0x24, 0x9f, 0x32, 0x3c, 0x14, + 0x26, +}; + +static EVP_PKEY * +EVP_PKEY_from_PEM(const char *ptr, size_t len) +{ + BIO *bio = NULL; + EVP_PKEY *pkey = NULL; + + if ((bio = BIO_new(BIO_s_mem())) == NULL) { + warnx("BIO_new"); + goto out; + } + if (len > INT_MAX || BIO_write(bio, ptr, (int)len) != (int)len) { + warnx("BIO_write"); + goto out; + } + if ((pkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)) == NULL) + warnx("PEM_read_bio_PUBKEY"); +out: + BIO_free(bio); + + return pkey; +} + +static int +es384_pk_cmp(const char *ptr, size_t len) +{ + EVP_PKEY *pkA = NULL; + EVP_PKEY *pkB = NULL; + es384_pk_t *k = NULL; + int r, ok = -1; + + if ((pkA = EVP_PKEY_from_PEM(ptr, len)) == NULL) { + warnx("EVP_PKEY_from_PEM"); + goto out; + } + if ((k = es384_pk_new()) == NULL) { + warnx("es384_pk_new"); + goto out; + } + if ((r = es384_pk_from_EVP_PKEY(k, pkA)) != FIDO_OK) { + warnx("es384_pk_from_EVP_PKEY: 0x%x", r); + goto out; + } + if ((pkB = es384_pk_to_EVP_PKEY(k)) == NULL) { + warnx("es384_pk_to_EVP_PKEY"); + goto out; + } + if ((r = EVP_PKEY_cmp(pkA, pkB)) != 1) { + warnx("EVP_PKEY_cmp: %d", r); + goto out; + } + + ok = 0; +out: + EVP_PKEY_free(pkA); + EVP_PKEY_free(pkB); + es384_pk_free(&k); + + return ok; +} + +static void +short_coord(void) +{ + assert(es384_pk_cmp(short_x, sizeof(short_x)) == 0); + assert(es384_pk_cmp(short_y, sizeof(short_y)) == 0); +} + +static void +invalid_curve(const unsigned char *raw, size_t raw_len) +{ + EVP_PKEY *pkey; + es384_pk_t *pk; + + pkey = EVP_PKEY_from_PEM(brainpoolP384r1, sizeof(brainpoolP384r1)); + if (pkey == NULL) + return; /* assume no brainpool support in libcrypto */ + ASSERT_NOT_NULL((pk = es384_pk_new())); + ASSERT_INVAL(es384_pk_from_EVP_PKEY(pk, pkey)); + ASSERT_INVAL(es384_pk_from_ptr(pk, raw, raw_len)); + ASSERT_NULL(es384_pk_to_EVP_PKEY((const es384_pk_t *)raw)); + + EVP_PKEY_free(pkey); + es384_pk_free(&pk); +} + +static void +full_coord(void) +{ + assert(es384_pk_cmp(secp384r1, sizeof(secp384r1)) == 0); +} + +static void +valid_curve(const unsigned char *raw, size_t raw_len) +{ + EVP_PKEY *pkeyA; + EVP_PKEY *pkeyB; + es384_pk_t *pkA; + es384_pk_t *pkB; + + ASSERT_NOT_NULL((pkeyA = EVP_PKEY_from_PEM(secp384r1, sizeof(secp384r1)))); + ASSERT_NOT_NULL((pkA = es384_pk_new())); + ASSERT_NOT_NULL((pkB = es384_pk_new())); + ASSERT_OK(es384_pk_from_EVP_PKEY(pkA, pkeyA)); + ASSERT_OK(es384_pk_from_ptr(pkB, raw, raw_len)); + ASSERT_NOT_NULL((pkeyB = es384_pk_to_EVP_PKEY(pkB))); + assert(EVP_PKEY_cmp(pkeyA, pkeyB) == 1); + + EVP_PKEY_free(pkeyA); + EVP_PKEY_free(pkeyB); + es384_pk_free(&pkA); + es384_pk_free(&pkB); +} + +int +main(void) +{ + fido_init(0); + + short_coord(); + full_coord(); + + invalid_curve(brainpoolP384r1_raw, sizeof(brainpoolP384r1_raw)); /* uncompressed */ + invalid_curve(brainpoolP384r1_raw + 1, sizeof(brainpoolP384r1_raw) - 1); /* libfido2 */ + valid_curve(secp384r1_raw, sizeof(secp384r1_raw)); /* uncompressed */ + valid_curve(secp384r1_raw + 1, sizeof(secp384r1_raw) - 1); /* libfido2 */ + + exit(0); +} |