Viewing file:  dh_support.c (1.6 KB) -rw-r--r--
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/*
* Copyright 2020-2021 The OpenSSL Project Authors. 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
*/
#include <string.h> /* strcmp */
#include <openssl/dh.h>
#include "internal/nelem.h"
#include "crypto/dh.h"
typedef struct dh_name2id_st{
const char *name;
int id;
int type;
} DH_GENTYPE_NAME2ID;
/* Indicates that the paramgen_type can be used for either DH or DHX */
#define TYPE_ANY -1
#ifndef OPENSSL_NO_DH
# define TYPE_DH DH_FLAG_TYPE_DH
# define TYPE_DHX DH_FLAG_TYPE_DHX
#else
# define TYPE_DH 0
# define TYPE_DHX 0
#endif
static const DH_GENTYPE_NAME2ID dhtype2id[] =
{
{ "group", DH_PARAMGEN_TYPE_GROUP, TYPE_ANY },
{ "generator", DH_PARAMGEN_TYPE_GENERATOR, TYPE_DH },
{ "fips186_4", DH_PARAMGEN_TYPE_FIPS_186_4, TYPE_DHX },
{ "fips186_2", DH_PARAMGEN_TYPE_FIPS_186_2, TYPE_DHX },
};
const char *ossl_dh_gen_type_id2name(int id)
{
size_t i;
for (i = 0; i < OSSL_NELEM(dhtype2id); ++i) {
if (dhtype2id[i].id == id)
return dhtype2id[i].name;
}
return NULL;
}
#ifndef OPENSSL_NO_DH
int ossl_dh_gen_type_name2id(const char *name, int type)
{
size_t i;
for (i = 0; i < OSSL_NELEM(dhtype2id); ++i) {
if ((dhtype2id[i].type == TYPE_ANY
|| type == dhtype2id[i].type)
&& strcmp(dhtype2id[i].name, name) == 0)
return dhtype2id[i].id;
}
return -1;
}
#endif
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