PBMAC1_get1_pbkdf2_param - Function to manipulate a PBMAC1 MAC structure

       IETF RFC 9579 (<https://tools.ietf.org/html/rfc9579>)

       Copyright 2021-2024 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>.

3.5.0                                              2025-06-04                     PBMAC1_GET1_PBKDF2_PARAM(3SSL)

PBMAC1_get1_pbkdf2_param() retrieves a PBKDF2PARAM structure from an X509_ALGOR structure.

       The PBMAC1_get1_pbkdf2_param function was added in OpenSSL 3.4.

       PBMAC1_get1_pbkdf2_param - Function to manipulate a PBMAC1 MAC structure

PBMAC1_get1_pbkdf2_param() returns NULL in case when PBMAC1 uses an algorithm apart from PBKDF2 or when
       passed incorrect parameters and a pointer to PBKDF2PARAM structure otherwise.

openssl-pkcs12(1)

        #include <openssl/x509.h>

        PBKDF2PARAM *PBMAC1_get1_pbkdf2_param(const X509_ALGOR *macalg);