Mercurial > dropbear

annotate testprof/dh_tests.c @ 230:809b681a9af5 libtomcrypt

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- check for generic AES/TWOFISH settings from Dropbear, not AES128 etc
author Matt Johnston <matt@ucc.asn.au>
date Tue, 30 Aug 2005 17:40:30 +0000
parents 39d5d58461d6
children
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1 #include <tomcrypt_test.h>
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2
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3 #ifdef MDH
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4
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5 int dh_tests (void)
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6 {
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7 unsigned char buf[3][4096];
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8 unsigned long x, y, z;
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9 int stat, stat2;
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10 dh_key usera, userb;
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11
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12 DO(dh_test());
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13
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14 /* make up two keys */
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15 DO(dh_make_key (&yarrow_prng, find_prng ("yarrow"), 512, &usera));
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16 DO(dh_make_key (&yarrow_prng, find_prng ("yarrow"), 512, &userb));
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17
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18 /* make the shared secret */
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19 x = 4096;
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20 DO(dh_shared_secret (&usera, &userb, buf[0], &x));
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21
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22 y = 4096;
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23 DO(dh_shared_secret (&userb, &usera, buf[1], &y));
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24 if (y != x) {
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25 fprintf(stderr, "DH Shared keys are not same size.\n");
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26 return 1;
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27 }
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28 if (memcmp (buf[0], buf[1], x)) {
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29 fprintf(stderr, "DH Shared keys not same contents.\n");
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30 return 1;
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31 }
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32
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33 /* now export userb */
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34 y = 4096;
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35 DO(dh_export (buf[1], &y, PK_PUBLIC, &userb));
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36 dh_free (&userb);
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37
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38 /* import and make the shared secret again */
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39 DO(dh_import (buf[1], y, &userb));
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40 z = 4096;
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41 DO(dh_shared_secret (&usera, &userb, buf[2], &z));
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42
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43 if (z != x) {
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44 fprintf(stderr, "failed. Size don't match?\n");
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45 return 1;
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46 }
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47 if (memcmp (buf[0], buf[2], x)) {
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48 fprintf(stderr, "Failed. Content didn't match.\n");
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49 return 1;
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50 }
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51 dh_free (&usera);
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52 dh_free (&userb);
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53
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54 /* test encrypt_key */
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55 dh_make_key (&yarrow_prng, find_prng ("yarrow"), 512, &usera);
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56 for (x = 0; x < 16; x++) {
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57 buf[0][x] = x;
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58 }
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59 y = sizeof (buf[1]);
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60 DO(dh_encrypt_key (buf[0], 16, buf[1], &y, &yarrow_prng, find_prng ("yarrow"), find_hash ("md5"), &usera));
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61 zeromem (buf[0], sizeof (buf[0]));
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62 x = sizeof (buf[0]);
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63 DO(dh_decrypt_key (buf[1], y, buf[0], &x, &usera));
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64 if (x != 16) {
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65 fprintf(stderr, "Failed (length)\n");
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66 return 1;
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67 }
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68 for (x = 0; x < 16; x++)
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69 if (buf[0][x] != x) {
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70 fprintf(stderr, "Failed (contents)\n");
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71 return 1;
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72 }
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73
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74 /* test sign_hash */
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75 for (x = 0; x < 16; x++) {
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76 buf[0][x] = x;
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77 }
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78 x = sizeof (buf[1]);
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79 DO(dh_sign_hash (buf[0], 16, buf[1], &x, &yarrow_prng , find_prng ("yarrow"), &usera));
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80 DO(dh_verify_hash (buf[1], x, buf[0], 16, &stat, &usera));
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81 buf[0][0] ^= 1;
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82 DO(dh_verify_hash (buf[1], x, buf[0], 16, &stat2, &usera));
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83 if (!(stat == 1 && stat2 == 0)) {
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84 fprintf(stderr, "dh_sign/verify_hash %d %d", stat, stat2);
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85 return 1;
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86 }
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87 dh_free (&usera);
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88 return 0;
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89 }
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90
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91 #else
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92
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93 int dh_tests(void)
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94 {
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95 fprintf(stderr, "NOP");
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96 return 0;
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97 }
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98
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99 #endif
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100
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101 /* $Source: /cvs/libtom/libtomcrypt/testprof/dh_tests.c,v $ */
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102 /* $Revision: 1.5 $ */
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103 /* $Date: 2005/05/21 12:51:25 $ */