| ## pkc_get_key_trust_info(3sec) Returns information about key trust Synopsis #include <pkc_api.h> unsigned32 pkc_get_key_trust_info( keyinfo_t * keyinfobase, unsigned key_index, certification_flags_t * flags, uuid_t * key_domain, unsigned long * key_usages); Parameters Input keyinfobase Key information, returned by pkc_retrieve_keyinfo(3sec). key_index Index of the key, ranging from 0 to keycount - 1. Output flags Information about the trust that can be placed in the key (see below). key_domain Indicates domain of retrieved key. A value of sec_pk_domain_unspecified or NULL means that the policy does not distinguish keys by domain. key_usages Indicates usage key is intended for. Description pkc_get_key_trust_info(3sec) returns a set of flags describing the trust that can be placed in the key. The desired information is extracted by the routine from the keyinfo_t structure, which must first be obtained by the caller by a call to the pkc_retrieve_keyinfo(3sec) routine. The returned certification_flags_t structure describes the trust that can be placed in a returned key. It contains the following fields: · trust_type A trust_type_t value, which will be one of the following: - UNTRUSTED No trust (e.g., unauthenticated). - DIRECT_TRUST Direct trust via third party (e.g., authenticated registry). - CERTIFIED_TRUST Trust certified by caller's trust base. · missing_crls A char; its value is TRUE (not 0) if one or more CRLs are missing. · revoked A char whose value is TRUE (not 0) if any certificate has been revoked (even if it was still valid at the retrieval time). If key_domain and key_usages are passed as non-NULL pointers, upon successful return these parameters will describe the domain and permitted usage(s) of the specified key. Policies that do not distinguish keys according to domain will indicate a domain of sec_pk_domain_unspecified; policies that do not distinguish keys according to usage will indicate all usages are permitted. The returned key_usages is a bit mask which describes the usage(s), if any, which the key is restricted to. The value is formed by AND-ing together one or more of the following constants: PKC_KEY_USAGE_AUTHENTICATION The key can be used to authenticate a user PKC_KEY_USAGE_INTEGRITY The key can be used to provide integrity protection PKC_KEY_USAGE_KEY_ENCIPHERMENT The key can be used to encrypt user keys PKC_KEY_USAGE_DATA_ENCIPHERMENT The key can be used to encrypt user data PKC_KEY_USAGE_KEY_AGREEMENT The key can be used for key-exchange PKC_KEY_USAGE_NONREPUDIATION The key can be used for non-repudiation PKC_CAKEY_USAGE_KEY_CERT_SIGN The key can be used to sign key certificates PKC_CAKEY_USAGE_OFFLINE_CRL_SIGN The key can be used to sign CRLs PKC_CAKEY_USAGE_TRANSACTION_SIGN The key can be used to sign transactions A returned key_usages value of NULL (or a value with all bits set) means that the key is suitable for any usage. Return Values pkc_s_success Operation successfully completed. Errors Refer to the OSF DCE Problem Determination Guide for complete descriptions of all error messages. Related Information Functions: pkc_intro(3sec) pkc_append_to_trustlist(3sec) pkc_free(3sec) pkc_free_keyinfo(3sec) pkc_free_trustbase(3sec) pkc_free_trustlist(3sec) pkc_get_key_certifier_count(3sec) pkc_get_key_certifier_info(3sec) pkc_get_key_count(3sec) pkc_get_key_data(3sec) pkc_get_registered_policies(3sec) pkc_init_trustbase(3sec) pkc_init_trustlist(3sec) pkc_retrieve_keyinfo(3sec) pkc_retrieve_keylist(3sec) ##