diff options
Diffstat (limited to 'testprof/dsa_test.c')
-rw-r--r-- | testprof/dsa_test.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/testprof/dsa_test.c b/testprof/dsa_test.c new file mode 100644 index 0000000..aa4988c --- /dev/null +++ b/testprof/dsa_test.c @@ -0,0 +1,68 @@ +#include <tomcrypt_test.h> + +#ifdef MDSA + +int dsa_test(void) +{ + unsigned char msg[16], out[1024], out2[1024]; + unsigned long x; + 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; } + + /* 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: /cvs/libtom/libtomcrypt/testprof/dsa_test.c,v $ */ +/* $Revision: 1.8 $ */ +/* $Date: 2005/06/03 19:24:32 $ */ |