1=pod 2 3=head1 NAME 4 5PKCS12_gen_mac, PKCS12_setup_mac, PKCS12_set_mac, 6PKCS12_verify_mac - Functions to create and manipulate a PKCS#12 structure 7 8=head1 SYNOPSIS 9 10 #include <openssl/pkcs12.h> 11 12 int PKCS12_gen_mac(PKCS12 *p12, const char *pass, int passlen, 13 unsigned char *mac, unsigned int *maclen); 14 int PKCS12_verify_mac(PKCS12 *p12, const char *pass, int passlen); 15 int PKCS12_set_mac(PKCS12 *p12, const char *pass, int passlen, 16 unsigned char *salt, int saltlen, int iter, 17 const EVP_MD *md_type); 18 int PKCS12_setup_mac(PKCS12 *p12, int iter, unsigned char *salt, 19 int saltlen, const EVP_MD *md_type); 20 21=head1 DESCRIPTION 22 23PKCS12_gen_mac() generates an HMAC over the entire PKCS#12 object using the 24supplied password along with a set of already configured parameters. 25 26PKCS12_verify_mac() verifies the PKCS#12 object's HMAC using the supplied 27password. 28 29PKCS12_setup_mac() sets the MAC part of the PKCS#12 structure with the supplied 30parameters. 31 32PKCS12_set_mac() sets the MAC and MAC parameters into the PKCS#12 object. 33 34I<pass> is the passphrase to use in the HMAC. I<salt> is the salt value to use, 35I<iter> is the iteration count and I<md_type> is the message digest 36function to use. 37 38=head1 NOTES 39 40If I<salt> is NULL then a suitable salt will be generated and used. 41 42If I<iter> is 1 then an iteration count will be omitted from the PKCS#12 43structure. 44 45PKCS12_gen_mac(), PKCS12_verify_mac() and PKCS12_set_mac() make assumptions 46regarding the encoding of the given passphrase. See L<passphrase-encoding(7)> 47for more information. 48 49=head1 RETURN VALUES 50 51All functions return 1 on success and 0 if an error occurred. 52 53=head1 CONFORMING TO 54 55IETF RFC 7292 (L<https://tools.ietf.org/html/rfc7292>) 56 57=head1 SEE ALSO 58 59L<d2i_PKCS12(3)>, 60L<PKCS12_create(3)>, 61L<passphrase-encoding(7)> 62 63=head1 COPYRIGHT 64 65Copyright 2021-2022 The OpenSSL Project Authors. All Rights Reserved. 66 67Licensed under the Apache License 2.0 (the "License"). You may not use 68this file except in compliance with the License. You can obtain a copy 69in the file LICENSE in the source distribution or at 70L<https://www.openssl.org/source/license.html>. 71 72=cut 73
