diff options
Diffstat (limited to 'regress/eddsa.c')
| -rw-r--r-- | regress/eddsa.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/regress/eddsa.c b/regress/eddsa.c new file mode 100644 index 0000000..f97f97c --- /dev/null +++ b/regress/eddsa.c @@ -0,0 +1,159 @@ +/* + * 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/eddsa.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 ecdsa[] = \ +"-----BEGIN PUBLIC KEY-----\n" +"MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEOwiq14c80b7C1Jzsx5w1zMvk2GgW\n" +"5kfGMOKXjwF/U+51ZfBDKehs3ivdeXAJBkxIh7E3iA32s+HyNqk+ntl9fg==\n" +"-----END PUBLIC KEY-----\n"; + +static const char eddsa[] = \ +"-----BEGIN PUBLIC KEY-----\n" +"MCowBQYDK2VwAyEADt/RHErAxAHxH9FUmsjOhQ2ALl6Y8nE0m3zQxkEE2iM=\n" +"-----END PUBLIC KEY-----\n"; + +static const unsigned char eddsa_raw[] = { + 0x0e, 0xdf, 0xd1, 0x1c, 0x4a, 0xc0, 0xc4, 0x01, + 0xf1, 0x1f, 0xd1, 0x54, 0x9a, 0xc8, 0xce, 0x85, + 0x0d, 0x80, 0x2e, 0x5e, 0x98, 0xf2, 0x71, 0x34, + 0x9b, 0x7c, 0xd0, 0xc6, 0x41, 0x04, 0xda, 0x23, +}; + +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 +eddsa_pk_cmp(const char *ptr, size_t len) +{ + EVP_PKEY *pkA = NULL; + EVP_PKEY *pkB = NULL; + eddsa_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 = eddsa_pk_new()) == NULL) { + warnx("eddsa_pk_new"); + goto out; + } + if ((r = eddsa_pk_from_EVP_PKEY(k, pkA)) != FIDO_OK) { + warnx("eddsa_pk_from_EVP_PKEY: 0x%x", r); + goto out; + } + if ((pkB = eddsa_pk_to_EVP_PKEY(k)) == NULL) { + warnx("eddsa_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); + eddsa_pk_free(&k); + + return ok; +} + +static void +invalid_key(void) +{ + EVP_PKEY *pkey; + eddsa_pk_t *pk; + + ASSERT_NOT_NULL((pkey = EVP_PKEY_from_PEM(ecdsa, sizeof(ecdsa)))); + ASSERT_NOT_NULL((pk = eddsa_pk_new())); + ASSERT_INVAL(eddsa_pk_from_EVP_PKEY(pk, pkey)); + + EVP_PKEY_free(pkey); + eddsa_pk_free(&pk); +} + +static void +valid_key(void) +{ + EVP_PKEY *pkeyA = NULL; + EVP_PKEY *pkeyB = NULL; + eddsa_pk_t *pkA = NULL; + eddsa_pk_t *pkB = NULL; + +#if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x3070000f + /* incomplete support; test what we can */ + ASSERT_NULL(EVP_PKEY_from_PEM(eddsa, sizeof(eddsa))); + ASSERT_NOT_NULL((pkB = eddsa_pk_new())); + ASSERT_INVAL(eddsa_pk_from_ptr(pkB, eddsa_raw, sizeof(eddsa_raw))); + ASSERT_NULL(eddsa_pk_to_EVP_PKEY((const eddsa_pk_t *)eddsa_raw)); + assert(eddsa_pk_cmp(eddsa, sizeof(eddsa)) < 0); +#else + ASSERT_NOT_NULL((pkeyA = EVP_PKEY_from_PEM(eddsa, sizeof(eddsa)))); + ASSERT_NOT_NULL((pkA = eddsa_pk_new())); + ASSERT_NOT_NULL((pkB = eddsa_pk_new())); + ASSERT_OK(eddsa_pk_from_EVP_PKEY(pkA, pkeyA)); + ASSERT_OK(eddsa_pk_from_ptr(pkB, eddsa_raw, sizeof(eddsa_raw))); + ASSERT_NOT_NULL((pkeyB = eddsa_pk_to_EVP_PKEY((const eddsa_pk_t *)eddsa_raw))); + assert(EVP_PKEY_cmp(pkeyA, pkeyB) == 1); + assert(eddsa_pk_cmp(eddsa, sizeof(eddsa)) == 0); +#endif + + EVP_PKEY_free(pkeyA); + EVP_PKEY_free(pkeyB); + eddsa_pk_free(&pkA); + eddsa_pk_free(&pkB); +} + +int +main(void) +{ + fido_init(0); + + invalid_key(); + valid_key(); + + exit(0); +} |