Mercurial > dropbear

annotate libtomcrypt/src/stream/sober128/sober128_test.c @ 1715:3974f087d9c0

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Disallow leading lines before the ident for server (#102) Per RFC4253 4.2 clients must be able to process other lines of data before the version string, server behavior is not defined neither with MUST/SHOULD nor with MAY. If server process up to 50 lines too - it may cause too long hanging session with invalid/evil client that consume host resources and potentially may lead to DDoS on poor embedded boxes. Let's require first line from client to be version string and fail early if it's not - matches both RFC and real OpenSSH behavior.
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Mon, 15 Jun 2020 18:22:18 +0500
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 #include "tomcrypt.h"
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11
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12 #ifdef LTC_SOBER128
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13
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14 int sober128_stream_test(void)
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15 {
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16 #ifndef LTC_TEST
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17 return CRYPT_NOP;
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18 #else
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19 unsigned char key[16] = { 0x74, 0x65, 0x73, 0x74, 0x20, 0x6b, 0x65, 0x79,
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20 0x20, 0x31, 0x32, 0x38, 0x62, 0x69, 0x74, 0x73 };
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21 unsigned char iv[4] = { 0x00, 0x00, 0x00, 0x00 };
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22 unsigned char out[20] = { 0x43, 0x50, 0x0c, 0xcf, 0x89, 0x91, 0x9f, 0x1d,
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23 0xaa, 0x37, 0x74, 0x95, 0xf4, 0xb4, 0x58, 0xc2,
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24 0x40, 0x37, 0x8b, 0xbb };
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25 int err, len = 20;
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26 unsigned char src[20], dst[20];
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27 sober128_state st;
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28
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29 XMEMSET(src, 0, len); /* input */
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30 if ((err = sober128_stream_setup(&st, key, sizeof(key))) != CRYPT_OK) return err;
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31 if ((err = sober128_stream_setiv(&st, iv, sizeof(iv))) != CRYPT_OK) return err;
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32 if ((err = sober128_stream_crypt(&st, src, len, dst)) != CRYPT_OK) return err;
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33 if ((err = sober128_stream_done(&st)) != CRYPT_OK) return err;
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34 if (compare_testvector(dst, len, out, len, "SOBER-128", 0)) {
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35 return CRYPT_FAIL_TESTVECTOR;
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36 }
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37 return CRYPT_OK;
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38 #endif
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39 }
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40
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41 #endif
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42
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43 /* ref: $Format:%D$ */
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44 /* git commit: $Format:%H$ */
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45 /* commit time: $Format:%ai$ */