Mercurial > dropbear
diff libtomcrypt/testprof/dsa_test.c @ 330:5488db2e9e4e
merge of 332f709a4cb39cde4cedab7c3be89e05f3023067
and ca4ca78b82c5d430c69ce01bf794e8886ce81431
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sat, 10 Jun 2006 16:39:40 +0000 |
parents | 1b9e69c058d2 |
children | 0cbe8f6dbf9e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtomcrypt/testprof/dsa_test.c Sat Jun 10 16:39:40 2006 +0000 @@ -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 $ */