Document Revision History

This table describes the changes to Keychain Services Reference.

DateNotes
2014-02-11Noted that kSecAttrAccessibleWhenUnlocked is the default value for items created without specifying a specific accessibility constant.
2013-09-17Updated description of kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly.
 

See kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly for details.

2012-12-13Corrected description of kSecAttrAccessibleWhenUnlockedThisDeviceOnly flag.
2012-09-19Added a note about releasing the obect returned by SecItemExport.
2012-07-17Added additional error codes introduced in OS X v10.8.
2012-05-14Updated to include the new SecACL* functions in OS X v10.7.
2010-09-01Updated for iOS 4.0. Added Keychain accessibility attributes.
2010-04-06Corrected typos.
2009-04-27Updated for iOS v3.0.
 

Corrected some mistakes and added some constants. Added functions to OS X version of document that create and read persistent references and that return a human-readable error string.

2008-11-19Added Keychain Services API for iOS.
2005-04-29 Added attribute constants for key items and made minor editing corrections.
2004-08-20

Minor editing corrections.

2004-06-28

Added functions, constants, and data types for exporting and importing keychain items.

2004-05-27

Added information about access controls.

 

Added section “Managing Trusted Applications”

 

Added information about access controls to other functions as appropriate.

 

Added “CSSM Authorization Tag Type Constants” for keychain items.

2003-10-08

Added keychain item class constants for keys.

2003-07-30

Added OS X v10.3 API.

2003-06-09

First version of this document.