Mercurial > dropbear

annotate libtomcrypt/testprof/dsa_test.c @ 304:1f36a94e01b9 ucc-axis-hack

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added README.axis
author Matt Johnston <matt@ucc.asn.au>
date Sat, 25 Mar 2006 16:26:29 +0000
parents 1b9e69c058d2
children 0cbe8f6dbf9e
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1 #include <tomcrypt_test.h>
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2
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3 #ifdef 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;
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9 int stat1, stat2;
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10 dsa_key key, key2;
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11
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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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14
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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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18
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19 /* sign the message */
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20 x = sizeof(out);
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21 DO(dsa_sign_hash(msg, sizeof(msg), out, &x, &yarrow_prng, find_prng("yarrow"), &key));
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22
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23 /* verify it once */
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24 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key));
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25
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26 /* Modify and verify again */
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27 msg[0] ^= 1;
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28 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat2, &key));
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29 msg[0] ^= 1;
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30 if (!(stat1 == 1 && stat2 == 0)) { fprintf(stderr, "dsa_verify %d %d", stat1, stat2); return 1; }
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32 /* test exporting it */
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33 x = sizeof(out2);
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34 DO(dsa_export(out2, &x, PK_PRIVATE, &key));
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35 DO(dsa_import(out2, x, &key2));
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36
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37 /* verify a signature with it */
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38 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
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39 if (stat1 == 0) { fprintf(stderr, "dsa_verify (import private) %d ", stat1); return 1; }
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40 dsa_free(&key2);
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41
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42 /* export as public now */
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43 x = sizeof(out2);
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44 DO(dsa_export(out2, &x, PK_PUBLIC, &key));
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45
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46 DO(dsa_import(out2, x, &key2));
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47 /* verify a signature with it */
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48 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
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49 if (stat1 == 0) { fprintf(stderr, "dsa_verify (import public) %d ", stat1); return 1; }
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50 dsa_free(&key2);
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51 dsa_free(&key);
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52
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53 return 0;
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54 }
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55
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56 #else
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57
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58 int dsa_test(void)
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59 {
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60 fprintf(stderr, "NOP");
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61 return 0;
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62 }
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63
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64 #endif
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65
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66 /* $Source: /cvs/libtom/libtomcrypt/testprof/dsa_test.c,v $ */
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67 /* $Revision: 1.8 $ */
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68 /* $Date: 2005/06/03 19:24:32 $ */