to find one or more keychain items which match specified attributes, use the SecItemCopyMatching API (see SecItem.h).
*/
OSStatus SecKeychainSearchCreateFromAttributesExtended(CFTypeRef keychainOrArray, SecItemClass itemClass, const SecKeychainAttributeList *attrList, CSSM_DB_CONJUNCTIVE dbConjunctive, CSSM_DB_OPERATOR dbOperator, SecKeychainSearchRef *searchRef)
to find one or more keychain items which match specified attributes, use the SecItemCopyMatching API (see SecItem.h).
*/
OSStatus SecKeychainSearchCreateFromAttributesExtended(CFTypeRef keychainOrArray, SecItemClass itemClass, const SecKeychainAttributeList *attrList, CSSM_DB_CONJUNCTIVE dbConjunctive, CSSM_DB_OPERATOR dbOperator, SecKeychainSearchRef *searchRef)