/**
Import a PRNG state
@param in The PRNG state
@param inlen Size of the state
@param prng The PRNG to import
@return CRYPT_OK if successful
*/
int yarrow_import(const unsigned char *in, unsigned long inlen, prng_state *prng)
{
int err;
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(prng != NULL);
if (inlen != 64) {
return CRYPT_INVALID_ARG;
}
if ((err = yarrow_start(prng)) != CRYPT_OK) {
return err;
}
return yarrow_add_entropy(in, 64, prng);
}
/**
Import a PRNG state
@param in The PRNG state
@param inlen Size of the state
@param prng The PRNG to import
@return CRYPT_OK if successful
*/
int yarrow_import(const unsigned char *in, unsigned long inlen, prng_state *prng)
{
int err;
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(prng != NULL);
LTC_MUTEX_LOCK(&prng->yarrow.prng_lock);
if (inlen != 64) {
LTC_MUTEX_UNLOCK(&prng->yarrow.prng_lock);
return CRYPT_INVALID_ARG;
}
if ((err = yarrow_start(prng)) != CRYPT_OK) {
LTC_MUTEX_UNLOCK(&prng->yarrow.prng_lock);
return err;
}
err = yarrow_add_entropy(in, 64, prng);
LTC_MUTEX_UNLOCK(&prng->yarrow.prng_lock);
return err;
}
int main() {
ltc_mp = ltm_desc;
rsa_key priv_key, pub_key;
int hash_idx, prng_idx;
int ret = rsa_import(openssl_private_rsa, sizeof(openssl_private_rsa), &priv_key);
ret = rsa_import(openssl_public_rsa, sizeof(openssl_public_rsa), &pub_key);
if (register_hash(&sha1_desc) == -1) {
printf("Error registering SHA1\n");
return -1;
}
hash_idx = find_hash("sha1");
register_prng(&sprng_desc);
prng_idx = find_prng("sprng");
prng_state prng;
int err;
if ((err = yarrow_start(&prng)) != CRYPT_OK) {
printf("Start error: %s\n", error_to_string(err));
}
/* add entropy */
if ((err = yarrow_add_entropy("hello world", 11, &prng))
!= CRYPT_OK) {
printf("Add_entropy error: %s\n", error_to_string(err));
}
int stat;
unsigned char buf[1024];
long size = 1024;
//ret = rsa_decrypt_key(sig, strlen(sig), buf, &size, 0, 0, hash_idx, &stat, &key);
ret = rsa_sign_hash(hash, strlen(hash), buf, &size, &prng, prng_idx, hash_idx, 0, &priv_key);
ret = rsa_verify_hash(sig, strlen(sig), hash, strlen(hash), hash_idx, 0, &stat, &pub_key);
printf("status is : %d\n", ret);
//load stuff!
return 0;
}
