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Leopard Technical Q&As: Security
Authorization grants an entity--such as a user or process--permission to make use of a particular service and determines exactly what the entity is permitted to do with that service. For example, Authorization Services is used to determine whether a specific user should be allowed to change a system preference. Developers can use authorization programming interfaces to control access to services provided by their applications. Both Objective-C and procedural C interfaces are provided.
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Describing the kSecTrustResultUnspecified error. (HTML)
QA1360: Explaining the semantics behind the kSecTrustResultUnspecified error returned by the Security APIs.
 2007-02-05
AuthorizationCreateFromExternalForm 100022 Error Explained (HTML)
QA1498: Explains the undocumented 100022 return value from AuthorizationCreateFromExternalForm.
 2007-01-04
Programmatically Accessing and Manipulating Multiple Keychain Items (HTML)
QA1486: An explanation on what is and is not possible using the SecKeychain API to manipulate Keychain Items.
 2006-10-03
Security Credentials (HTML) (日本語 HTML)
QA1277: Discusses AuthorizationCopyRights and the relationship between Authorization Services, authorization sessions, Security Server, credentials, and the credentials cache.
 2003-08-06
Be careful when using AuthorizationCreate (HTML) (日本語 HTML)
QA1172: Explains why you should avoid determining allowable rights when creating an AuthorizationRef.
 2002-09-20
Stay away from custom Authorization dialogs (HTML) (日本語 HTML)
QA1199: Explains why you shouldn't create a custom authorization dialog.
 2002-09-20