Mercurial > dropbear

annotate libtomcrypt/testprof/dsa_test.c @ 1857:6022df862942

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Use DSCP for IP QoS traffic classes The previous TOS values are deprecated and not used by modern traffic classifiers. This sets AF21 for "interactive" traffic (with a tty). Non-tty traffic sets AF11 - that indicates high throughput but is not lowest priority (which would be CS1 or LE). This differs from the CS1 used by OpenSSH, it lets interactive git over SSH have higher priority than background least effort traffic. Dropbear's settings here should be suitable with the diffservs used by CAKE qdisc.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 25 Jan 2022 17:32:20 +0800
parents f849a5ca2efc
children
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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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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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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 /* $Date$ */