mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-04 13:23:26 +01:00
155 lines
5.1 KiB
C
155 lines
5.1 KiB
C
/*
|
|
* Copyright 2011-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
/*
|
|
* ECDSA low level APIs are deprecated for public use, but still ok for
|
|
* internal use.
|
|
*/
|
|
#include "internal/deprecated.h"
|
|
|
|
#include <string.h>
|
|
|
|
#include <openssl/err.h>
|
|
#include <openssl/opensslv.h>
|
|
|
|
#include "ec_local.h"
|
|
|
|
int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *point,
|
|
const BIGNUM *x, int y_bit, BN_CTX *ctx)
|
|
{
|
|
if (group->meth->point_set_compressed_coordinates == NULL
|
|
&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
|
|
ERR_raise(ERR_LIB_EC, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
if (!ec_point_is_compat(point, group)) {
|
|
ERR_raise(ERR_LIB_EC, EC_R_INCOMPATIBLE_OBJECTS);
|
|
return 0;
|
|
}
|
|
if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
|
|
if (group->meth->field_type == NID_X9_62_prime_field)
|
|
return ossl_ec_GFp_simple_set_compressed_coordinates(group, point, x,
|
|
y_bit, ctx);
|
|
else
|
|
#ifdef OPENSSL_NO_EC2M
|
|
{
|
|
ERR_raise(ERR_LIB_EC, EC_R_GF2M_NOT_SUPPORTED);
|
|
return 0;
|
|
}
|
|
#else
|
|
return ossl_ec_GF2m_simple_set_compressed_coordinates(group, point,
|
|
x, y_bit, ctx);
|
|
#endif
|
|
}
|
|
return group->meth->point_set_compressed_coordinates(group, point, x,
|
|
y_bit, ctx);
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_DEPRECATED_3_0
|
|
int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
|
|
EC_POINT *point, const BIGNUM *x,
|
|
int y_bit, BN_CTX *ctx)
|
|
{
|
|
return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx);
|
|
}
|
|
|
|
# ifndef OPENSSL_NO_EC2M
|
|
int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
|
|
EC_POINT *point, const BIGNUM *x,
|
|
int y_bit, BN_CTX *ctx)
|
|
{
|
|
return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx);
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point,
|
|
point_conversion_form_t form, unsigned char *buf,
|
|
size_t len, BN_CTX *ctx)
|
|
{
|
|
if (group->meth->point2oct == 0
|
|
&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
|
|
ERR_raise(ERR_LIB_EC, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
if (!ec_point_is_compat(point, group)) {
|
|
ERR_raise(ERR_LIB_EC, EC_R_INCOMPATIBLE_OBJECTS);
|
|
return 0;
|
|
}
|
|
if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
|
|
if (group->meth->field_type == NID_X9_62_prime_field)
|
|
return ossl_ec_GFp_simple_point2oct(group, point, form, buf, len,
|
|
ctx);
|
|
else
|
|
#ifdef OPENSSL_NO_EC2M
|
|
{
|
|
ERR_raise(ERR_LIB_EC, EC_R_GF2M_NOT_SUPPORTED);
|
|
return 0;
|
|
}
|
|
#else
|
|
return ossl_ec_GF2m_simple_point2oct(group, point,
|
|
form, buf, len, ctx);
|
|
#endif
|
|
}
|
|
|
|
return group->meth->point2oct(group, point, form, buf, len, ctx);
|
|
}
|
|
|
|
int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
|
|
const unsigned char *buf, size_t len, BN_CTX *ctx)
|
|
{
|
|
if (group->meth->oct2point == 0
|
|
&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
|
|
ERR_raise(ERR_LIB_EC, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return 0;
|
|
}
|
|
if (!ec_point_is_compat(point, group)) {
|
|
ERR_raise(ERR_LIB_EC, EC_R_INCOMPATIBLE_OBJECTS);
|
|
return 0;
|
|
}
|
|
if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
|
|
if (group->meth->field_type == NID_X9_62_prime_field)
|
|
return ossl_ec_GFp_simple_oct2point(group, point, buf, len, ctx);
|
|
else
|
|
#ifdef OPENSSL_NO_EC2M
|
|
{
|
|
ERR_raise(ERR_LIB_EC, EC_R_GF2M_NOT_SUPPORTED);
|
|
return 0;
|
|
}
|
|
#else
|
|
return ossl_ec_GF2m_simple_oct2point(group, point, buf, len, ctx);
|
|
#endif
|
|
}
|
|
return group->meth->oct2point(group, point, buf, len, ctx);
|
|
}
|
|
|
|
size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point,
|
|
point_conversion_form_t form,
|
|
unsigned char **pbuf, BN_CTX *ctx)
|
|
{
|
|
size_t len;
|
|
unsigned char *buf;
|
|
|
|
len = EC_POINT_point2oct(group, point, form, NULL, 0, NULL);
|
|
if (len == 0)
|
|
return 0;
|
|
if ((buf = OPENSSL_malloc(len)) == NULL) {
|
|
ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
len = EC_POINT_point2oct(group, point, form, buf, len, ctx);
|
|
if (len == 0) {
|
|
OPENSSL_free(buf);
|
|
return 0;
|
|
}
|
|
*pbuf = buf;
|
|
return len;
|
|
}
|