/*
Generate a public/private RSA keypair, and ask for a file to store
them in.
*/
static bool keygen(int bits) {
RSA *rsa_key;
FILE *f;
char *name = get_name();
char *pubname, *privname;
fprintf(stderr, "Generating %d bits keys:\n", bits);
rsa_key = RSA_generate_key(bits, 0x10001, indicator, NULL);
if(!rsa_key) {
fprintf(stderr, "Error during key generation!\n");
return false;
} else
fprintf(stderr, "Done.\n");
xasprintf(&privname, "%s/rsa_key.priv", confbase);
f = ask_and_open(privname, "private RSA key");
free(privname);
if(!f)
return false;
#ifdef HAVE_FCHMOD
/* Make it unreadable for others. */
fchmod(fileno(f), 0600);
#endif
fputc('\n', f);
PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
fclose(f);
if(name)
xasprintf(&pubname, "%s/hosts/%s", confbase, name);
else
xasprintf(&pubname, "%s/rsa_key.pub", confbase);
f = ask_and_open(pubname, "public RSA key");
free(pubname);
if(!f)
return false;
fputc('\n', f);
PEM_write_RSAPublicKey(f, rsa_key);
fclose(f);
free(name);
return true;
}
/*
Generate a public/private RSA keypair, and ask for a file to store
them in.
*/
static bool keygen(int bits) {
RSA *rsa_key;
FILE *f;
char *name = NULL;
char *filename;
get_config_string(lookup_config(config_tree, "Name"), &name);
if(name && !check_id(name)) {
fprintf(stderr, "Invalid name for myself!\n");
return false;
}
fprintf(stderr, "Generating %d bits keys:\n", bits);
rsa_key = RSA_generate_key(bits, 0x10001, indicator, NULL);
if(!rsa_key) {
fprintf(stderr, "Error during key generation!\n");
return false;
} else
fprintf(stderr, "Done.\n");
xasprintf(&filename, "%s/rsa_key.priv", confbase);
f = ask_and_open(filename, "private RSA key");
if(!f)
return false;
if(disable_old_keys(f))
fprintf(stderr, "Warning: old key(s) found and disabled.\n");
#ifdef HAVE_FCHMOD
/* Make it unreadable for others. */
fchmod(fileno(f), 0600);
#endif
fputc('\n', f);
PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
fclose(f);
free(filename);
if(name)
xasprintf(&filename, "%s/hosts/%s", confbase, name);
else
xasprintf(&filename, "%s/rsa_key.pub", confbase);
f = ask_and_open(filename, "public RSA key");
if(!f)
return false;
if(disable_old_keys(f))
fprintf(stderr, "Warning: old key(s) found and disabled.\n");
fputc('\n', f);
PEM_write_RSAPublicKey(f, rsa_key);
fclose(f);
free(filename);
if(name)
free(name);
return true;
}
/*
Generate a public/private RSA keypair, and ask for a file to store
them in.
*/
static bool keygen(int bits) {
BIGNUM *e = NULL;
RSA *rsa_key;
FILE *f;
char filename[PATH_MAX];
BN_GENCB *cb;
int result;
fprintf(stderr, "Generating %d bits keys:\n", bits);
cb = BN_GENCB_new();
if(!cb) {
abort();
}
BN_GENCB_set(cb, indicator, NULL);
rsa_key = RSA_new();
if(BN_hex2bn(&e, "10001") == 0) {
abort();
}
if(!rsa_key || !e) {
abort();
}
result = RSA_generate_key_ex(rsa_key, bits, e, cb);
BN_free(e);
BN_GENCB_free(cb);
if(!result) {
fprintf(stderr, "Error during key generation!\n");
RSA_free(rsa_key);
return false;
} else {
fprintf(stderr, "Done.\n");
}
snprintf(filename, sizeof(filename), "%s/rsa_key.priv", confbase);
f = ask_and_open(filename, "private RSA key");
if(!f) {
RSA_free(rsa_key);
return false;
}
#ifdef HAVE_FCHMOD
/* Make it unreadable for others. */
fchmod(fileno(f), 0600);
#endif
fputc('\n', f);
PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
fclose(f);
char *name = get_name();
if(name) {
snprintf(filename, sizeof(filename), "%s/hosts/%s", confbase, name);
free(name);
} else {
snprintf(filename, sizeof(filename), "%s/rsa_key.pub", confbase);
}
f = ask_and_open(filename, "public RSA key");
if(!f) {
RSA_free(rsa_key);
return false;
}
fputc('\n', f);
PEM_write_RSAPublicKey(f, rsa_key);
fclose(f);
RSA_free(rsa_key);
return true;
}
