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/*
* Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "inner.h"
static const unsigned char *
api_generator(int curve, size_t *len)
{
switch (curve) {
case BR_EC_secp256r1:
return br_ec_p256_m15.generator(curve, len);
case BR_EC_curve25519:
return br_ec_c25519_m15.generator(curve, len);
default:
return br_ec_prime_i15.generator(curve, len);
}
}
static const unsigned char *
api_order(int curve, size_t *len)
{
switch (curve) {
case BR_EC_secp256r1:
return br_ec_p256_m15.order(curve, len);
case BR_EC_curve25519:
return br_ec_c25519_m15.order(curve, len);
default:
return br_ec_prime_i15.order(curve, len);
}
}
static size_t
api_xoff(int curve, size_t *len)
{
switch (curve) {
case BR_EC_secp256r1:
return br_ec_p256_m15.xoff(curve, len);
case BR_EC_curve25519:
return br_ec_c25519_m15.xoff(curve, len);
default:
return br_ec_prime_i15.xoff(curve, len);
}
}
static uint32_t
api_mul(unsigned char *G, size_t Glen,
const unsigned char *kb, size_t kblen, int curve)
{
switch (curve) {
case BR_EC_secp256r1:
return br_ec_p256_m15.mul(G, Glen, kb, kblen, curve);
case BR_EC_curve25519:
return br_ec_c25519_m15.mul(G, Glen, kb, kblen, curve);
default:
return br_ec_prime_i15.mul(G, Glen, kb, kblen, curve);
}
}
static size_t
api_mulgen(unsigned char *R,
const unsigned char *x, size_t xlen, int curve)
{
switch (curve) {
case BR_EC_secp256r1:
return br_ec_p256_m15.mulgen(R, x, xlen, curve);
case BR_EC_curve25519:
return br_ec_c25519_m15.mulgen(R, x, xlen, curve);
default:
return br_ec_prime_i15.mulgen(R, x, xlen, curve);
}
}
static uint32_t
api_muladd(unsigned char *A, const unsigned char *B, size_t len,
const unsigned char *x, size_t xlen,
const unsigned char *y, size_t ylen, int curve)
{
switch (curve) {
case BR_EC_secp256r1:
return br_ec_p256_m15.muladd(A, B, len,
x, xlen, y, ylen, curve);
case BR_EC_curve25519:
return br_ec_c25519_m15.muladd(A, B, len,
x, xlen, y, ylen, curve);
default:
return br_ec_prime_i15.muladd(A, B, len,
x, xlen, y, ylen, curve);
}
}
/* see bearssl_ec.h */
const br_ec_impl br_ec_all_m15 = {
(uint32_t)0x23800000,
&api_generator,
&api_order,
&api_xoff,
&api_mul,
&api_mulgen,
&api_muladd
};
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