gnutls_pkcs12_mac_info(3)          gnutls          gnutls_pkcs12_mac_info(3)

NAME         top

       gnutls_pkcs12_mac_info - API function

SYNOPSIS         top

       #include <gnutls/pkcs12.h>

       int gnutls_pkcs12_mac_info(gnutls_pkcs12_t pkcs12, unsigned int *
       mac, void * salt, unsigned int * salt_size, unsigned int *
       iter_count, char ** oid);

ARGUMENTS         top

       gnutls_pkcs12_t pkcs12
                   A pkcs12 type

       unsigned int * mac
                   the MAC algorithm used as gnutls_mac_algorithm_t

       void * salt the salt used for string to key (if non-NULL then
                   salt_size initially holds its size)

       unsigned int * salt_size
                   string to key salt size

       unsigned int * iter_count
                   string to key iteration count

       char ** oid if non-NULL it will contain an allocated null-terminated
                   variable with the OID

DESCRIPTION         top

       This function will provide information on the MAC algorithm used in a
       PKCS 12 structure. If the structure algorithms are unknown the code
       GNUTLS_E_UNKNOWN_HASH_ALGORITHM will be returned, and only  oid ,
       will be set. That is,  oid will be set on structures with a MAC
       whether supported or not. It must be deinitialized using
       gnutls_free().  The other variables are only set on supported

RETURNS         top

       GNUTLS_E_INVALID_REQUEST if the provided structure doesn't contain a
       MAC, GNUTLS_E_UNKNOWN_HASH_ALGORITHM if the structure's MAC isn't
       supported, or another negative error code in case of a failure. Zero
       on success.

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2018 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification,
       are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO         top

       The full documentation for gnutls is maintained as a Texinfo manual.
       If the /usr/share/doc/gnutls/ directory does not contain the HTML
       form visit 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.2.tar.xz fetched from
       ⟨⟩ on 2018-04-30.  If you discover
       any rendering problems in this HTML version of the page, or you
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       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                              3.6.2          gnutls_pkcs12_mac_info(3)