Mercurial > dropbear
view libtomcrypt/testprof/dsa_test.c @ 1484:f68ee671bf6d
use parent $CC etc
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sat, 10 Feb 2018 18:57:20 +0800 |
parents | f849a5ca2efc |
children |
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#include <tomcrypt_test.h> #ifdef LTC_MDSA int dsa_test(void) { unsigned char msg[16], out[1024], out2[1024]; unsigned long x, y; int stat1, stat2; dsa_key key, key2; /* make a random key */ DO(dsa_make_key(&yarrow_prng, find_prng("yarrow"), 20, 128, &key)); /* verify it */ DO(dsa_verify_key(&key, &stat1)); if (stat1 == 0) { fprintf(stderr, "dsa_verify_key "); return 1; } /* encrypt a message */ for (x = 0; x < 16; x++) { msg[x] = x; } x = sizeof(out); DO(dsa_encrypt_key(msg, 16, out, &x, &yarrow_prng, find_prng("yarrow"), find_hash("sha1"), &key)); /* decrypt */ y = sizeof(out2); DO(dsa_decrypt_key(out, x, out2, &y, &key)); if (y != 16 || memcmp(out2, msg, 16)) { fprintf(stderr, "dsa_decrypt failed, y == %lu\n", y); return 1; } /* sign the message */ x = sizeof(out); DO(dsa_sign_hash(msg, sizeof(msg), out, &x, &yarrow_prng, find_prng("yarrow"), &key)); /* verify it once */ DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key)); /* Modify and verify again */ msg[0] ^= 1; DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat2, &key)); msg[0] ^= 1; if (!(stat1 == 1 && stat2 == 0)) { fprintf(stderr, "dsa_verify %d %d", stat1, stat2); return 1; } /* test exporting it */ x = sizeof(out2); DO(dsa_export(out2, &x, PK_PRIVATE, &key)); DO(dsa_import(out2, x, &key2)); /* verify a signature with it */ DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2)); if (stat1 == 0) { fprintf(stderr, "dsa_verify (import private) %d ", stat1); return 1; } dsa_free(&key2); /* export as public now */ x = sizeof(out2); DO(dsa_export(out2, &x, PK_PUBLIC, &key)); DO(dsa_import(out2, x, &key2)); /* verify a signature with it */ DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2)); if (stat1 == 0) { fprintf(stderr, "dsa_verify (import public) %d ", stat1); return 1; } dsa_free(&key2); dsa_free(&key); return 0; } #else int dsa_test(void) { fprintf(stderr, "NOP"); return 0; } #endif /* $Source$ */ /* $Revision$ */ /* $Date$ */