NAME
DH_size, DH_bits, DH_security_bits - get Diffie-Hellman prime size and security bits
SYNOPSIS
#include <openssl/dh.h>
int DH_bits(const DH *dh);
Deprecated since OpenSSL 3.0, can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see int DH_size(const DH *dh);
int DH_security_bits(const DH *dh);
DH_bits() returns the number of significant bits. dh and dh->p must not be NULL. The remaining functions described on this page are deprecated. Applications should instead use EVP_PKEY_size(3). DH_size() returns the Diffie-Hellman prime size in bytes. It can be used to determine how much memory must be allocated for the shared secret computed by BN_security_bits(3). DH_bits() returns the number of bits in the key. DH_size() returns the prime size of Diffie-Hellman in bytes. DH_security_bits() returns the number of security bits. The DH_size() and DH_security_bits() functions were deprecated in OpenSSL 3.0. The DH_bits() function was added in OpenSSL 1.1.0. Copyright 2000-2020 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.DESCRIPTION
RETURN VALUES
SEE ALSO
HISTORY
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