48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
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/*
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* Copyright 2011-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* DH low level APIs are deprecated for public use, but still ok for
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* internal use.
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*/
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#include "internal/deprecated.h"
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include "dh_local.h"
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#include <openssl/bn.h>
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#include "crypto/bn_dh.h"
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/*
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* Macro to make a DH structure from BIGNUM data. NB: although just copying
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* the BIGNUM static pointers would be more efficient, we can't do that
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* because they get wiped using BN_clear_free() when DH_free() is called.
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*/
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#define make_dh(x) \
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DH *DH_get_##x(void) \
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{ \
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DH *dh = DH_new(); \
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\
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if (dh == NULL) \
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return NULL; \
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dh->params.p = BN_dup(&ossl_bignum_dh##x##_p); \
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dh->params.g = BN_dup(&ossl_bignum_dh##x##_g); \
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dh->params.q = BN_dup(&ossl_bignum_dh##x##_q); \
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if (dh->params.p == NULL || dh->params.q == NULL || dh->params.g == NULL) {\
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DH_free(dh); \
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return NULL; \
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} \
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return dh; \
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}
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make_dh(1024_160)
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make_dh(2048_224)
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make_dh(2048_256)
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