RSA BSAFE Cert-C
API Reference

EXTENDED_KEY_USAGE Reference

Represents the Extended Key Usage extension for X.509 v3 certificates.

This value indicates one or more purposes for which the public key in a certificate can be used. It can be used for these extended purposes in addition to, or in place of, the basic purposes indicated in the KEY_USAGE extension. Extended key purposes can be defined by any organization with a need to do so. The default criticality for this extension is NON_CRITICAL. A certificate can have multiple Extended Key Usage extensions at the same time. Use the EXTENDED_KEY_USAGE structure with the C_AddExtensionValue() and C_GetExtensionValue() functions.

Data Fields

keyUsagePurpose

An ITEM structure whose data member points to the extended-key-usage OIDs that indicate the purposes of the key in the certificate. Cert-C defines the extended-key-usage OIDs listed in the following table:

PKIX Extended-Key-Usage OID	Extended-Key-Usage OID Length
`KP_SERVERAUTH`	`KP_SERVERAUTH_LEN`
`KP_CLIENTAUTH`	`KP_CLIENTAUTH_LEN`
`KP_CODESIGNING`	`KP_CODESIGNING_LEN`
`KP_EMAILPROTECTION`	`KP_EMAILPROTECTION_LEN`
`KP_IPSECENDSYSTEM`	`KP_IPSECENDSYSTEM_LEN`
`KP_IPSECTUNNEL`	`KP_IPSECTUNNEL_LEN`
`KP_IPSECUSER`	`KP_IPSECUSER_LEN`
`KP_TIMESTAMPING`	`KP_TIMESTAMPING_LEN`
`KP_OCSPSIGNING`	`KP_OCSPSIGNING_LEN`

#include <certext.h>

02089 typedef struct EXTENDED_KEY_USAGE {
02090   ITEM keyUsagePurpose;             /* The OID for extended Key usage purposes */
02091 } EXTENDED_KEY_USAGE;

The documentation for this struct was generated from the following file:

certext.h

RSA BSAFE^® Cert-C 2.7 API Reference