Mercurial > dropbear

annotate libtomcrypt/testprof/dsa_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 f849a5ca2efc
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include <tomcrypt_test.h>
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2
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3 #ifdef LTC_MDSA
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4
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5 int dsa_test(void)
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6 {
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7 unsigned char msg[16], out[1024], out2[1024];
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8 unsigned long x, y;
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9 int stat1, stat2;
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10 dsa_key key, key2;
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12 /* make a random key */
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13 DO(dsa_make_key(&yarrow_prng, find_prng("yarrow"), 20, 128, &key));
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15 /* verify it */
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16 DO(dsa_verify_key(&key, &stat1));
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17 if (stat1 == 0) { fprintf(stderr, "dsa_verify_key "); return 1; }
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19 /* encrypt a message */
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20 for (x = 0; x < 16; x++) { msg[x] = x; }
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21 x = sizeof(out);
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22 DO(dsa_encrypt_key(msg, 16, out, &x, &yarrow_prng, find_prng("yarrow"), find_hash("sha1"), &key));
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23
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24 /* decrypt */
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25 y = sizeof(out2);
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26 DO(dsa_decrypt_key(out, x, out2, &y, &key));
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27
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28 if (y != 16 || memcmp(out2, msg, 16)) {
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29 fprintf(stderr, "dsa_decrypt failed, y == %lu\n", y);
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30 return 1;
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31 }
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33 /* sign the message */
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34 x = sizeof(out);
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35 DO(dsa_sign_hash(msg, sizeof(msg), out, &x, &yarrow_prng, find_prng("yarrow"), &key));
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37 /* verify it once */
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38 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key));
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39
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40 /* Modify and verify again */
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41 msg[0] ^= 1;
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42 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat2, &key));
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43 msg[0] ^= 1;
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44 if (!(stat1 == 1 && stat2 == 0)) { fprintf(stderr, "dsa_verify %d %d", stat1, stat2); return 1; }
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45
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46 /* test exporting it */
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47 x = sizeof(out2);
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48 DO(dsa_export(out2, &x, PK_PRIVATE, &key));
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49 DO(dsa_import(out2, x, &key2));
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50
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51 /* verify a signature with it */
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52 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
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53 if (stat1 == 0) { fprintf(stderr, "dsa_verify (import private) %d ", stat1); return 1; }
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54 dsa_free(&key2);
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55
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56 /* export as public now */
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57 x = sizeof(out2);
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58 DO(dsa_export(out2, &x, PK_PUBLIC, &key));
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59
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60 DO(dsa_import(out2, x, &key2));
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61 /* verify a signature with it */
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62 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
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63 if (stat1 == 0) { fprintf(stderr, "dsa_verify (import public) %d ", stat1); return 1; }
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64 dsa_free(&key2);
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65 dsa_free(&key);
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66
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67 return 0;
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68 }
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69
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70 #else
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71
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72 int dsa_test(void)
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73 {
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74 fprintf(stderr, "NOP");
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75 return 0;
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76 }
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77
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78 #endif
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79
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80 /* $Source$ */
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81 /* $Revision$ */
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82 /* $Date$ */