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Apple Changing the Way OS X Recognizes Signed Apps

5/08/2014 by

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Pre-release notes published by Apple for OS X Mavericks 10.9.5 and Yosemite Developer Preview 5 are informing developers that they might have to re-sign their apps if they don't want Apple's Gatekeeper anti-malware feature to block them.

According to the tech titan, version 1 signatures, the ones created with OS X Mountain Lion 10.8.5 or earlier, will be obsolete once OS X Mavericks 10.9.5 is released, and Gatekeeper will no longer recognize them.

"For your apps to run on updated versions of OS X they must be signed on OS X version 10.9 or later and thus have a version 2 signature," Apple informed developers in the pre-release notes.

Teams building code on older versions of OS X are required to re-sign their apps on OS X 10.9 or later by using the codesign tool. Apple has highlighted the fact that developers must sign code while running OS X Mavericks in order to get a valid version 2 signature because the code signing system is part of the operating system. Copying the codesign tool from Mavericks to an older version of OS X will not work.

Once the applications are re-signed, they must be submitted to the App Store as an update. Applications signed with version 2 signatures will work properly on older versions of OS X, Apple said.

This article has been extracted from http://www.securityweek.com, please click on this link to read the article in full http://www.securityweek.com/apple-changing-way-os-x-recognizes-signed-apps

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