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gnutls_x509_crt_get_key_usage(3) gnutls gnutls_x509_crt_get_key_usage(3) NAME gnutls_x509_crt_get_key_usage - API function SYNOPSIS #include <gnutls/x509.h> int gnutls_x509_crt_get_key_usage(gnutls_x509_crt_t cert, unsigned int * key_usage, unsigned int * critical); ARGUMENTS gnutls_x509_crt_t cert should contain a gnutls_x509_crt_t type unsigned int * key_usage where the key usage bits will be stored unsigned int * critical will be non-zero if the extension is marked as critical DESCRIPTION This function will return certificate's key usage, by reading the keyUsage X.509 extension (2.5.29.15). The key usage value will ORed values of the: GNUTLS_KEY_DIGITAL_SIGNATURE, GNUTLS_KEY_NON_REPUDIA- TION, GNUTLS_KEY_KEY_ENCIPHERMENT, GNUTLS_KEY_DATA_ENCIPHERMENT, GNUTLS_KEY_KEY_AGREEMENT, GNUTLS_KEY_KEY_CERT_SIGN, GNUTLS_KEY_CRL_SIGN, GNUTLS_KEY_ENCIPHER_ONLY, GNUTLS_KEY_DECI- PHER_ONLY. RETURNS zero on success, or a negative error code in case of parsing error. If the certificate does not contain the keyUsage extension GNUTLS_E_RE- QUESTED_DATA_NOT_AVAILABLE will be returned. REPORTING BUGS Report bugs to <bugs@gnutls.org>. Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001-2023 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 no- tice and this notice are preserved. SEE ALSO The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/local/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.8.9 gnutls_x509_crt_get_key_usage(3)
NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT | SEE ALSO
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