1 /*
2  * Copyright (c) 2017, [Ribose Inc](https://www.ribose.com).
3  * All rights reserved.
4  *
5  * This code is originally derived from software contributed to
6  * The NetBSD Foundation by Alistair Crooks (agc@netbsd.org), and
7  * carried further by Ribose Inc (https://www.ribose.com).
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef RNP_ED25519_H_
32 #define RNP_ED25519_H_
33 
34 #include "ec.h"
35 
36 rnp_result_t eddsa_validate_key(rng_t *rng, const pgp_ec_key_t *key, bool secret);
37 /*
38  * curve_len must be 255 currently (for Ed25519)
39  * If Ed448 was supported in the future curve_len=448 would also be allowed.
40  */
41 rnp_result_t eddsa_generate(rng_t *rng, pgp_ec_key_t *key, size_t numbits);
42 
43 rnp_result_t eddsa_verify(const pgp_ec_signature_t *sig,
44                           const uint8_t *           hash,
45                           size_t                    hash_len,
46                           const pgp_ec_key_t *      key);
47 
48 rnp_result_t eddsa_sign(rng_t *             rng,
49                         pgp_ec_signature_t *sig,
50                         const uint8_t *     hash,
51                         size_t              hash_len,
52                         const pgp_ec_key_t *key);
53 
54 #endif
55