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Leopard Technical Q&As
Mac OS X provides a number of system-level authorization, authentication, and cryptographic services that software and hardware developers can use to build security into their products. In addition, Mac OS X provides programming interfaces to SSL/TLS that developers can use to transport data securely over a network.
A guided introduction for developers implementing security features in Mac OS X.   Essential information for developers building security into their products.   API references organized by framework.
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AuthorizationCreateFromExternalForm 100022 Error Explained (HTML)
QA1498: Explains the undocumented 100022 return value from AuthorizationCreateFromExternalForm.
 Authentication 2007-01-04
Describing the kSecTrustResultUnspecified error. (HTML)
QA1360: Explaining the semantics behind the kSecTrustResultUnspecified error returned by the Security APIs.
 Authentication 2007-02-05
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.
 Authentication 2006-10-03
AuthorizationCreateFromExternalForm 100022 Error Explained (HTML)
QA1498: Explains the undocumented 100022 return value from AuthorizationCreateFromExternalForm.
 Authorization 2007-01-04
Be careful when using AuthorizationCreate (HTML) (日本語 HTML)
QA1172: Explains why you should avoid determining allowable rights when creating an AuthorizationRef.
 Authorization 2002-09-20
Describing the kSecTrustResultUnspecified error. (HTML)
QA1360: Explaining the semantics behind the kSecTrustResultUnspecified error returned by the Security APIs.
 Authorization 2007-02-05
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.
 Authorization 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.
 Authorization 2003-08-06
Stay away from custom Authorization dialogs (HTML) (日本語 HTML)
QA1199: Explains why you shouldn't create a custom authorization dialog.
 Authorization 2002-09-20
Describing the kSecTrustResultUnspecified error. (HTML)
QA1360: Explaining the semantics behind the kSecTrustResultUnspecified error returned by the Security APIs.
 Carbon 2007-02-05
Security Framework Error Codes (HTML)
QA1499: Explains how to interpret errors returned by the Security Framework with an overview of Security error handling.
 Carbon 2006-11-16
Describing the kSecTrustResultUnspecified error. (HTML)
QA1360: Explaining the semantics behind the kSecTrustResultUnspecified error returned by the Security APIs.
 Cocoa 2007-02-05
Security Framework Error Codes (HTML)
QA1499: Explains how to interpret errors returned by the Security Framework with an overview of Security error handling.
 Cocoa 2006-11-16
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.
 Cryptography 2006-10-03
Mac OS X and root access (HTML)
QA1013: Describes how to enable root access in Mac OS X.
 Darwin 2008-09-16
Security Framework Error Codes (HTML)
QA1499: Explains how to interpret errors returned by the Security Framework with an overview of Security error handling.
 Darwin 2006-11-16
Installing smart card reader drivers (HTML)
QA1359: Updates obsolete information contained in the pcscd(8) man page on Mac OS X Jaguar and Panther.
 Hardware & Drivers 2004-08-30
Mac OS X and root access (HTML)
QA1013: Describes how to enable root access in Mac OS X.
 Hardware & Drivers 2008-09-16
What are snag keys in Open Firmware? (HTML) (日本語 HTML)
HW35: Explains Open Firmware snag keys, including examples of their function.
 Hardware & Drivers 1999-02-15
Accessing HTTPS Proxy Settings (HTML) (日本語 HTML)
QA1234: Describes how to programatically access Secure Web Proxy information.
 Internet & Web 2003-02-19
Does Safari support 128-bit encryption? (HTML)
QA1320: Discusses support for 128-bit encryption in Apple's Safari web browser.
 Internet & Web 2004-09-10
Enabling X11 Forwarding (HTML)
QA1383: Describes how to enable ssh clients to receive X11 communication from a Mac OS X system.
 Internet & Web 2004-10-25
Getting a Packet Trace (HTML) (日本語 HTML)
QA1176: Lists tools available for looking at the network packets on the wire.
 Internet & Web 2008-06-03
Enabling X11 Forwarding (HTML)
QA1383: Describes how to enable ssh clients to receive X11 communication from a Mac OS X system.
 Mac OS X Server 2004-10-25
Security Framework Error Codes (HTML)
QA1499: Explains how to interpret errors returned by the Security Framework with an overview of Security error handling.
 Mac OS X Server 2006-11-16
What are snag keys in Open Firmware? (HTML) (日本語 HTML)
HW35: Explains Open Firmware snag keys, including examples of their function.
 Mac OS X Server 1999-02-15
Getting a Packet Trace (HTML) (日本語 HTML)
QA1176: Lists tools available for looking at the network packets on the wire.
 Networking 2008-06-03
Security Framework Error Codes (HTML)
QA1499: Explains how to interpret errors returned by the Security Framework with an overview of Security error handling.
 Networking 2006-11-16
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.
 Secure Storage 2006-10-03