gnutls_certificate_verify_peers2 (3) - Linux Man Pages
gnutls_certificate_verify_peers2: API function
NAMEgnutls_certificate_verify_peers2 - API function
- gnutls_session_t session
- is a gnutls session
- unsigned int * status
- is the output of the verification
DESCRIPTIONThis function will verify the peer's certificate and store the status in the status variable as a bitwise or'd gnutls_certificate_status_t values or zero if the certificate is trusted. Note that value in status is set only when the return value of this function is success (i.e, failure to trust a certificate does not imply a negative return value). The default verification flags used by this function can be overridden using gnutls_certificate_set_verify_flags().
This function will take into account the OCSP Certificate Status TLS extension, as well as the following X.509 certificate extensions: Name Constraints, Key Usage, and Basic Constraints (pathlen).
To avoid denial of service attacks some default upper limits regarding the certificate key size and chain size are set. To override them use gnutls_certificate_set_verify_limits().
Note that you must also check the peer's name in order to check if the verified certificate belongs to the actual peer, see gnutls_x509_crt_check_hostname(), or use gnutls_certificate_verify_peers3().
RETURNSa negative error code on error and GNUTLS_E_SUCCESS (0) when the peer's certificate was successfully parsed, irrespective of whether it was verified.
REPORTING BUGSReport bugs to <bugs [at] gnutls.org>.
Home page: http://www.gnutls.org
COPYRIGHTCopyright © 2001-2014 Free Software Foundation, Inc..
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.
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