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annotate libtomcrypt/tests/prng_test.c @ 1665:7c17995bcdfb

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Improve address logging on early exit messages (#83) Change 'Early exit' and 'Exit before auth' messages to include the IP address & port as part of the message. This allows log scanning utilities such as 'fail2ban' to obtain the offending IP address as part of the failure event instead of extracting the PID from the message and then scanning the log again for match 'child connection from' messages Signed-off-by: Kevin Darbyshire-Bryant <[email protected]>
author Kevin Darbyshire-Bryant <6500011+ldir-EDB0@users.noreply.github.com>
date Wed, 18 Mar 2020 15:28:56 +0000
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1471
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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 #include <tomcrypt_test.h>
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10
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11 #ifdef LTC_PRNG_ENABLE_LTC_RNG
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12
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13 static unsigned long my_test_rng_read;
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14
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15 static unsigned long my_test_rng(unsigned char *buf, unsigned long len,
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16 void (*callback)(void))
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17 {
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18 unsigned long n;
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19 LTC_UNUSED_PARAM(callback);
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20 for (n = 0; n < len; ++n) {
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21 buf[n] = 4;
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22 }
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23 my_test_rng_read += n;
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24 return n;
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25 }
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26
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27 #endif
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28
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29 int prng_test(void)
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30 {
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31 int err = CRYPT_NOP;
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32 int x;
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33 unsigned char buf[4096] = { 0 };
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34 unsigned long n, one;
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35 prng_state nprng;
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36
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37 #ifdef LTC_PRNG_ENABLE_LTC_RNG
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38 unsigned long before;
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39
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40 unsigned long (*previous)(unsigned char *, unsigned long , void (*)(void)) = ltc_rng;
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41 ltc_rng = my_test_rng;
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42
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43 before = my_test_rng_read;
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44
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45 if ((err = rng_make_prng(128, find_prng("yarrow"), &yarrow_prng, NULL)) != CRYPT_OK) {
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46 fprintf(stderr, "rng_make_prng with 'my_test_rng' failed: %s\n", error_to_string(err));
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47 exit(EXIT_FAILURE);
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48 }
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49
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50 if (before == my_test_rng_read) {
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51 fprintf(stderr, "somehow there was no read from the ltc_rng! %lu == %lu\n", before, my_test_rng_read);
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52 exit(EXIT_FAILURE);
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53 }
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54
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55 ltc_rng = previous;
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56 #endif
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57
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58 /* test prngs (test, import/export) */
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59 for (x = 0; prng_descriptor[x].name != NULL; x++) {
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60 if(strstr(prng_descriptor[x].name, "no_prng") == prng_descriptor[x].name) continue;
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61 err = CRYPT_OK;
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62 DOX(prng_descriptor[x].test(), prng_descriptor[x].name);
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63 DOX(prng_descriptor[x].start(&nprng), prng_descriptor[x].name);
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64 DOX(prng_descriptor[x].add_entropy((unsigned char *)"helloworld12", 12, &nprng), prng_descriptor[x].name);
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65 DOX(prng_descriptor[x].ready(&nprng), prng_descriptor[x].name);
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66 n = sizeof(buf);
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67 if (strcmp(prng_descriptor[x].name, "sprng")) {
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68 one = 1;
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69 if (prng_descriptor[x].pexport(buf, &one, &nprng) != CRYPT_BUFFER_OVERFLOW) {
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70 fprintf(stderr, "Error testing pexport with a short buffer (%s)\n", prng_descriptor[x].name);
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71 return CRYPT_ERROR;
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72 }
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73 }
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74 DOX(prng_descriptor[x].pexport(buf, &n, &nprng), prng_descriptor[x].name);
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75 prng_descriptor[x].done(&nprng);
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76 DOX(prng_descriptor[x].pimport(buf, n, &nprng), prng_descriptor[x].name);
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77 DOX(prng_descriptor[x].pimport(buf, 4096, &nprng), prng_descriptor[x].name); /* try to import larger data */
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78 DOX(prng_descriptor[x].ready(&nprng), prng_descriptor[x].name);
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79 if (prng_descriptor[x].read(buf, 100, &nprng) != 100) {
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80 fprintf(stderr, "Error reading from imported PRNG (%s)!\n", prng_descriptor[x].name);
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81 return CRYPT_ERROR;
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82 }
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83 prng_descriptor[x].done(&nprng);
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84 }
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85 return err;
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86 }
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87
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88 /* ref: $Format:%D$ */
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89 /* git commit: $Format:%H$ */
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90 /* commit time: $Format:%ai$ */