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annotate dss.h @ 1663:c795520269f9

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Fallback for key gen without hard link support (#89) Add a non-atomic fallback for key generation on platforms where link() is not permitted (such as most stock Android installs) or on filesystems without hard link support (such as FAT).
author Matt Robinson <git@nerdoftheherd.com>
date Sat, 14 Mar 2020 14:37:35 +0000
parents 06d52bcb8094
children ba6fc7afe1c5
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1 /*
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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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8 * of this software and associated documentation files (the "Software"), to deal
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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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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 #ifndef DROPBEAR_DSS_H_
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26 #define DROPBEAR_DSS_H_
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28 #include "includes.h"
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29 #include "buffer.h"
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31 #if DROPBEAR_DSS
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33 typedef struct {
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35 mp_int* p;
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36 mp_int* q;
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37 mp_int* g;
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38 mp_int* y;
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39 /* x is the private part */
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40 mp_int* x;
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41
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42 } dropbear_dss_key;
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44 #define DSS_P_BITS 1024
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45 #define DSS_Q_BITS 160
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47 void buf_put_dss_sign(buffer* buf, const dropbear_dss_key *key, const buffer *data_buf);
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48 #if DROPBEAR_SIGNKEY_VERIFY
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49 int buf_dss_verify(buffer* buf, const dropbear_dss_key *key, const buffer *data_buf);
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50 #endif
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51 int buf_get_dss_pub_key(buffer* buf, dropbear_dss_key *key);
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52 int buf_get_dss_priv_key(buffer* buf, dropbear_dss_key *key);
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53 void buf_put_dss_pub_key(buffer* buf, const dropbear_dss_key *key);
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54 void buf_put_dss_priv_key(buffer* buf, const dropbear_dss_key *key);
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55 void dss_key_free(dropbear_dss_key *key);
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57 #endif /* DROPBEAR_DSS */
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59 #endif /* DROPBEAR_DSS_H_ */