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 paramters.
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25       PKCS12_verify_mac() verifies the PKCS#12 object's HMAC using the
26       supplied password.
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28       PKCS12_setup_mac() sets the MAC part of the PKCS#12 structure with the
29       supplied parameters.
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31       PKCS12_set_mac() sets the MAC and MAC parameters into the PKCS#12
32       object.
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34       pass is the passphrase to use in the HMAC. salt is the salt value to
35       use, iter is the iteration count and md_type is the message digest
36       function to use.
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NOTES

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

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

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

55       d2i_PKCS12(3), PKCS12_create(3), passphrase-encoding(7)
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58       Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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60       Licensed under the Apache License 2.0 (the "License").  You may not use
61       this file except in compliance with the License.  You can obtain a copy
62       in the file LICENSE in the source distribution or at
63       <https://www.openssl.org/source/license.html>.
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673.0.5                             2022-11-01             PKCS12_GEN_MAC(3ossl)
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