gnutls_pkcs7_verify_direct(3) — Linux manual page


gnutls_pkcs7_verify_direct(3)      gnutls      gnutls_pkcs7_verify_direct(3)

NAME         top

       gnutls_pkcs7_verify_direct - API function

SYNOPSIS         top

       #include <gnutls/pkcs7.h>

       int gnutls_pkcs7_verify_direct(gnutls_pkcs7_t pkcs7,
       gnutls_x509_crt_t signer, unsigned idx, const gnutls_datum_t * data,
       unsigned flags);

ARGUMENTS         top

       gnutls_pkcs7_t pkcs7
                   should contain a gnutls_pkcs7_t type

       gnutls_x509_crt_t signer
                   the certificate believed to have signed the structure

       unsigned idx
                   the index of the signature info to check

       const gnutls_datum_t * data
                   The data to be verified or NULL

       unsigned flags
                   Zero or an OR list of gnutls_certificate_verify_flags

DESCRIPTION         top

       This function will verify the provided data against the signature
       present in the SignedData of the PKCS 7 structure. If the data
       provided are NULL then the data in the encapsulatedContent field will
       be used instead.

       Note that, unlike gnutls_pkcs7_verify() this function does not verify
       the key purpose of the signer. It is expected for the caller to
       verify the intended purpose of the signer -e.g., via
       gnutls_x509_crt_get_key_purpose_oid(), or

       Note also, that since GnuTLS 3.5.6 this function introduces checks in
       the end certificate ( signer ), including time checks and key usage

RETURNS         top

       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
       error value. A verification error results to a
       GNUTLS_E_PK_SIG_VERIFY_FAILED and the lack of encapsulated data to

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 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
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       any rendering problems in this HTML version of the page, or you
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gnutls                              3.6.9      gnutls_pkcs7_verify_direct(3)