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Title "DH_NEW 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
DH_new, DH_free - allocate and free DH objects Header "SYNOPSIS" .Vb 1 #include <openssl/dh.h> .Ve

The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining \s-1OPENSSL_API_COMPAT\s0 with a suitable version value, see openssl_user_macros\|(7):

.Vb 1 DH* DH_new(void); \& void DH_free(DH *dh); .Ve

Header "DESCRIPTION" \fBDH_new() allocates and initializes a \s-1DH\s0 structure.

\fBDH_free() frees the \s-1DH\s0 structure and its components. The values are erased before the memory is returned to the system. If dh is \s-1NULL\s0 nothing is done.

Header "RETURN VALUES" If the allocation fails, DH_new() returns \s-1NULL\s0 and sets an error code that can be obtained by ERR_get_error\|(3). Otherwise it returns a pointer to the newly allocated structure.

\fBDH_free() returns no value.

Header "SEE ALSO" \fBDH_new\|(3), ERR_get_error\|(3), \fBDH_generate_parameters\|(3), \fBDH_generate_key\|(3), \s-1EVP_PKEY-DH\s0\|(7) Header "HISTORY" All of these functions were deprecated in OpenSSL 3.0.

For replacement see \s-1EVP_PKEY-DH\s0\|(7).

Header "COPYRIGHT" Copyright 2000-2022 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.