| /* |
| * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the OpenSSL license (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 <stdio.h> |
| #include "internal/cryptlib.h" |
| #include "dh_locl.h" |
| #include <openssl/bn.h> |
| #include "internal/bn_dh.h" |
| |
| /* |
| * Macro to make a DH structure from BIGNUM data. NB: although just copying |
| * the BIGNUM static pointers would be more efficient, we can't do that |
| * because they get wiped using BN_clear_free() when DH_free() is called. |
| */ |
| |
| #define make_dh(x) \ |
| DH *DH_get_##x(void) \ |
| { \ |
| DH *dh = DH_new(); \ |
| \ |
| if (dh == NULL) \ |
| return NULL; \ |
| dh->p = BN_dup(&_bignum_dh##x##_p); \ |
| dh->g = BN_dup(&_bignum_dh##x##_g); \ |
| dh->q = BN_dup(&_bignum_dh##x##_q); \ |
| if (dh->p == NULL || dh->q == NULL || dh->g == NULL) {\ |
| DH_free(dh); \ |
| return NULL; \ |
| } \ |
| return dh; \ |
| } |
| |
| make_dh(1024_160) |
| make_dh(2048_224) |
| make_dh(2048_256) |
