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annotate gened25519.c @ 1659:d32bcb5c557d

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Add Ed25519 support (#91) * Add support for Ed25519 as a public key type Ed25519 is a elliptic curve signature scheme that offers better security than ECDSA and DSA and good performance. It may be used for both user and host keys. OpenSSH key import and fuzzer are not supported yet. Initially inspired by Peter Szabo. * Add curve25519 and ed25519 fuzzers * Add import and export of Ed25519 keys
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Wed, 11 Mar 2020 21:09:45 +0500
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Vladislav Grishenko <themiron@users.noreply.github.com>
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1 /*
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Vladislav Grishenko <themiron@users.noreply.github.com>
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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Vladislav Grishenko <themiron@users.noreply.github.com>
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8 * of this software and associated documentation files (the "Software"), to deal
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Vladislav Grishenko <themiron@users.noreply.github.com>
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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Vladislav Grishenko <themiron@users.noreply.github.com>
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #include "includes.h"
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26 #include "dbutil.h"
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27 #include "dbrandom.h"
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28 #include "curve25519.h"
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29 #include "gened25519.h"
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30
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31 #if DROPBEAR_ED25519
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32
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33 dropbear_ed25519_key * gen_ed25519_priv_key(unsigned int size) {
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34
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35 dropbear_ed25519_key *key;
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36
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37 if (size != 256) {
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38 dropbear_exit("Ed25519 keys have a fixed size of 256 bits");
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39 }
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40
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41 key = m_malloc(sizeof(*key));
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42 dropbear_ed25519_make_key(key->pub, key->priv);
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43
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44 return key;
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45 }
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46
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47 #endif /* DROPBEAR_ED25519 */