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1 #include "test.h" |
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2 |
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3 int dsa_test(void) |
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4 { |
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5 unsigned char msg[16], out[1024], out2[1024]; |
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6 unsigned long x, y; |
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7 int err, stat1, stat2; |
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8 dsa_key key, key2; |
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9 |
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10 /* make a random key */ |
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11 DO(dsa_make_key(&test_yarrow, find_prng("yarrow"), 20, 128, &key)); |
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12 |
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13 /* verify it */ |
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14 DO(dsa_verify_key(&key, &stat1)); |
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15 if (stat1 == 0) { printf("dsa_verify_key "); return 1; } |
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16 |
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17 /* sign the message */ |
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18 x = sizeof(out); |
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19 DO(dsa_sign_hash(msg, sizeof(msg), out, &x, &test_yarrow, find_prng("yarrow"), &key)); |
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20 |
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21 /* verify it once */ |
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22 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key)); |
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23 |
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24 /* Modify and verify again */ |
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25 msg[0] ^= 1; |
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26 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat2, &key)); |
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27 msg[0] ^= 1; |
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28 if (!(stat1 == 1 && stat2 == 0)) { printf("dsa_verify %d %d", stat1, stat2); return 1; } |
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29 |
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30 /* test exporting it */ |
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31 x = sizeof(out2); |
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32 DO(dsa_export(out2, &x, PK_PRIVATE, &key)); |
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33 DO(dsa_import(out2, x, &key2)); |
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34 |
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35 /* verify a signature with it */ |
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36 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2)); |
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37 if (stat1 == 0) { printf("dsa_verify (import private) %d ", stat1); return 1; } |
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38 dsa_free(&key2); |
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39 |
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40 /* export as public now */ |
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41 x = sizeof(out2); |
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42 DO(dsa_export(out2, &x, PK_PUBLIC, &key)); |
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43 DO(dsa_import(out2, x, &key2)); |
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44 /* verify a signature with it */ |
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45 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2)); |
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46 if (stat1 == 0) { printf("dsa_verify (import public) %d ", stat1); return 1; } |
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47 dsa_free(&key2); |
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48 dsa_free(&key); |
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49 |
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50 return 0; |
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51 } |
