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/* * 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_local.h" #include <openssl/bn.h> #include "crypto/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)