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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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Montash is headquartered in Old Street, London, in the heart of the technology hub. Montash has completed assignments in over 30 countries and has appointed technical professionals from board level to senior and mid management in permanent and contract roles.

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