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https://github.com/Q3Rally-Team/q3rally.git
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46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
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#include "rsa_common.h"
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static void write_rsakey(rsa_key *key, const int type, const char *fname)
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{
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unsigned char buf[4096];
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unsigned long len = sizeof (buf);
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int rc;
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if ((rc = rsa_export(buf, &len, type, key)) != CRYPT_OK) {
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fail("rsa_export for '%s' failed: %s", fname, error_to_string(rc));
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}
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write_file(fname, buf, len);
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}
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int main(int argc, char **argv)
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{
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int rc = 0;
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prng_state prng;
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int prng_index;
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rsa_key key;
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ltc_mp = tfm_desc;
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prng_index = register_prng(&sprng_desc); /* (fortuna_desc is a good choice if your platform's PRNG sucks.) */
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if (prng_index == -1) {
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fail("Failed to register a RNG");
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}
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if ((rc = rng_make_prng(128, prng_index, &prng, NULL)) != CRYPT_OK) {
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fail("rng_make_prng failed: %s", error_to_string(rc));
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}
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if ((rc = rsa_make_key(&prng, prng_index, 256, 65537, &key)) != CRYPT_OK) {
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fail("rng_make_key failed: %s", error_to_string(rc));
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}
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write_rsakey(&key, PK_PRIVATE, "privatekey.bin");
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write_rsakey(&key, PK_PUBLIC, "publickey.bin");
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rsa_free(&key);
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return 0;
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}
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/* end of rsa_make_keys.c ... */
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