1PKCS12_GEN_MAC(3ossl)               OpenSSL              PKCS12_GEN_MAC(3ossl)
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NAME

6       PKCS12_gen_mac, PKCS12_setup_mac, PKCS12_set_mac, PKCS12_verify_mac -
7       Functions to create and manipulate a PKCS#12 structure
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SYNOPSIS

10        #include <openssl/pkcs12.h>
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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);
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DESCRIPTION

22       PKCS12_gen_mac() generates an HMAC over the entire PKCS#12 object using
23       the supplied password along with a set of already configured
24       parameters.
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26       PKCS12_verify_mac() verifies the PKCS#12 object's HMAC using the
27       supplied password.
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29       PKCS12_setup_mac() sets the MAC part of the PKCS#12 structure with the
30       supplied parameters.
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32       PKCS12_set_mac() sets the MAC and MAC parameters into the PKCS#12
33       object.
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35       pass is the passphrase to use in the HMAC. salt is the salt value to
36       use, iter is the iteration count and md_type is the message digest
37       function to use.
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NOTES

40       If salt is NULL then a suitable salt will be generated and used.
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42       If iter is 1 then an iteration count will be omitted from the PKCS#12
43       structure.
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45       PKCS12_gen_mac(), PKCS12_verify_mac() and PKCS12_set_mac() make
46       assumptions regarding the encoding of the given passphrase. See
47       passphrase-encoding(7) for more information.
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RETURN VALUES

50       All functions return 1 on success and 0 if an error occurred.
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CONFORMING TO

53       IETF RFC 7292 (<https://tools.ietf.org/html/rfc7292>)
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SEE ALSO

56       d2i_PKCS12(3), PKCS12_create(3), passphrase-encoding(7)
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59       Copyright 2021-2022 The OpenSSL Project Authors. All Rights Reserved.
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61       Licensed under the Apache License 2.0 (the "License").  You may not use
62       this file except in compliance with the License.  You can obtain a copy
63       in the file LICENSE in the source distribution or at
64       <https://www.openssl.org/source/license.html>.
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683.1.1                             2023-08-31             PKCS12_GEN_MAC(3ossl)
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