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#include <limits.h>
#include <sys/types.h>
#include <stdlib.h>
#include <errno.h>
#include <linux/ncr.h>
#include "ncrypto.h"
int
ncr_key_generate_params_init(ncr_key_generate_params_t *params)
{
ncr_key_generate_params_t rv;
if (!params) {
errno = EINVAL;
return -1;
}
if (!(rv = calloc(1, sizeof(*rv)))) {
errno = ENOMEM;
return -1;
}
rv->algorithm = NCR_ALG_NONE;
*params = rv;
return 0;
}
int
ncr_key_generate_params_deinit(ncr_key_generate_params_t params)
{
if (params)
free(params);
return 0;
}
int
ncr_key_generate_params_set_algorithm(ncr_key_generate_params_t params, ncr_algorithm_t algorithm)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->algorithm = algorithm;
return 0;
}
int
ncr_key_generate_params_set_keyflags(ncr_key_generate_params_t params, unsigned int keyflags)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->keyflags = keyflags;
return 0;
}
int
ncr_key_generate_params_set_secret_bits(ncr_key_generate_params_t params, unsigned int bits)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->params.secret.bits = bits;
return 0;
}
int
ncr_key_generate_params_set_rsa_bits(ncr_key_generate_params_t params, unsigned int bits)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->params.rsa.bits = bits;
return 0;
}
int
ncr_key_generate_params_set_rsa_e(ncr_key_generate_params_t params, void *e, size_t e_size)
{
unsigned long value;
const uint8_t *p;
if (!params || !e) {
errno = EINVAL;
return -1;
}
value = 0;
for (p = e; p < (const uint8_t *)e + e_size; p++) {
if (value > (ULONG_MAX - *p) / 256) {
errno = EOVERFLOW;
return -1;
}
value = value * 256 + *p;
}
params->params.rsa.e = value;
return 0;
}
int
ncr_key_generate_params_set_dsa_p_bits(ncr_key_generate_params_t params,
unsigned int p_bits)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->params.dsa.p_bits = p_bits;
return 0;
}
int
ncr_key_generate_params_set_dsa_q_bits(ncr_key_generate_params_t params,
unsigned int q_bits)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->params.dsa.q_bits = q_bits;
return 0;
}
int
ncr_key_generate_params_set_dh(ncr_key_generate_params_t params, void *p, size_t p_size, void *g, size_t g_size)
{
if (!params) {
errno = EINVAL;
return -1;
}
params->params.dh.p = p;
params->params.dh.p_size = p_size;
params->params.dh.g = g;
params->params.dh.g_size = g_size;
return 0;
}
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