1 /* 2 * Copyright (c) 2019 Yubico AB. All rights reserved. 3 * SPDX-License-Identifier: BSD-2-Clause 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _FIDO_EDDSA_H 30 #define _FIDO_EDDSA_H 31 32 #include <openssl/ec.h> 33 34 #include <stdint.h> 35 #include <stdlib.h> 36 37 #ifdef _FIDO_INTERNAL 38 #include "types.h" 39 #else 40 #include <fido.h> 41 #endif 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif /* __cplusplus */ 46 47 eddsa_pk_t *eddsa_pk_new(void); 48 void eddsa_pk_free(eddsa_pk_t **); 49 EVP_PKEY *eddsa_pk_to_EVP_PKEY(const eddsa_pk_t *); 50 51 int eddsa_pk_from_EVP_PKEY(eddsa_pk_t *, const EVP_PKEY *); 52 int eddsa_pk_from_ptr(eddsa_pk_t *, const void *, size_t); 53 54 #ifdef _FIDO_INTERNAL 55 56 #if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x3070000f 57 #define EVP_PKEY_ED25519 EVP_PKEY_NONE 58 int EVP_PKEY_get_raw_public_key(const EVP_PKEY *, unsigned char *, size_t *); 59 EVP_PKEY *EVP_PKEY_new_raw_public_key(int, ENGINE *, const unsigned char *, 60 size_t); 61 int EVP_DigestVerify(EVP_MD_CTX *, const unsigned char *, size_t, 62 const unsigned char *, size_t); 63 #endif /* LIBRESSL_VERSION_NUMBER */ 64 65 #endif /* _FIDO_INTERNAL */ 66 67 #ifdef __cplusplus 68 } /* extern "C" */ 69 #endif /* __cplusplus */ 70 71 #endif /* !_FIDO_EDDSA_H */ 72