Apple Responds to Developers Regarding Expired Mac App Store Security Certificates

Last week some users and developers experienced an issue that displayed a „damaged“ error when attempting to open select apps from the Mac App Store, including popular apps like 1Password, Tweetbot and Byword. Today, Apple has sent an email to developers explaining what happened and how to fix their apps.

In the email, which developer Donald Southard Jr. shared on Twitter, Apple explains that the company issued a new security certificate for the Mac App Store in September in anticipation of the expiration of the old certificate. The new certificate used a stronger SHA-2 hashing algorithm instead of the old SHA-1 algorithm. Hashing algorithms are used by certificate authorities to sign security certificates.

However, two issues caused users to experience errors when starting up apps. The first issue, according to Apple, is that there was a caching issue with the Mac App Store that required users to restart their computers and re-authenticate with the Mac App Store to clear out the old cache. Apple says it’s working on a fix for this in an upcoming OS X update. The other issue is that some apps were running an older version of OpenSSL that didn’t support SHA-2. Apple says it replaced the SHA-2 certificate with a new SHA-1 certificate last Thursday night.

Finally, Apple says that „most of the issues are now resolved“, but that some apps might still experience problems if the apps make „incorrect assumptions“ about the Mac App Store’s security certificates. Apple asks developers to make sure their code adheres to the Receipt Validation Programming Guide and to resubmit apps for expedited review if necessary. The AppleCare support team has also been briefed with the latest troubleshooting information for users.

Tag: Mac App Store
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Some Mac App Store Apps ‘Damaged’ Due to Authentication Issues

A growing number of MacRumors readers and Twitter users have been experiencing an issue with some Mac App Store apps displaying a „damaged“ error when opened since late Wednesday. The issue appears to be rather widespread, affecting popular apps such as 1Password, Acorn, Byword, Call of Duty 2, DaisyDisk and Tweetbot.

Mac App Store apps with a „damaged“ error (Image: Graham/Twitter)

Mac users are prompted with this error message when opening Mac App Store apps:

“App Name” is damaged and can’t be opened. Delete “App Name” and download it again from the App Store.

Tweetbot developer Paul Haddad tweeted that the issue appears to be related to expired receipts for authentication certification, and speculated that the receipts now using SHA256 encryption may be causing problems with older OS X versions.

The issue, however, also appears to affect some users running OS X El Capitan, leading Haddad to believe that Mac App Store apps contacting Apple’s servers simultaneously may be causing a „self inflicted DDOS on Apple’s receipt generation service.“

Haddad says that rebooting your Mac on OS X 10.10 or later may resolve the issue, while some users have been forced to reinstall apps from the Mac App Store, disconnect from and reopen the Mac App Store or simply reenter their Apple ID password.

More details will be provided as they are known. Apple has been reached for comment.

Tag: Mac App Store
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iTunes 12.1 gives Mac users a sexy new Notification Center widget

It’s been over six months since Apple first unveiled iTunes 12, the latest major release of its multimedia mega-app. Updates since then have been few and far between, but today, Apple unveiled the first major update to iTunes 12: iTunes…Read more ›



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Apple Updates iWork for iOS and Mac with Yosemite and Continuity Support [iOS Blog]

With the release of OS X Yosemite today, Apple has updated its iWork suite of productivity apps on both Mac and iOS with support for the new version of OS X and Continuity, which allows users to continue their work from their iOS devices to Macs and back again.

iWork for Mac received the biggest improvements, with all new looks for Pages, Keynote and Numbers inspired by the look of OS X Yosemite. iWork for iOS received support for third-party storage providers, allowing users to save their documents with providers like Dropbox. Both versions of iWork received numerous improvements and refinements, like updated file formats for easier sharing through Gmail and Dropbox, customizable alignments and much more.

Apple’s line of iWork apps are free to users who have recently purchased a new Mac or iOS device. Otherwise, each iWork app for Mac is available for $19.99 while each iWork app for iOS is available for $9.99.

Pages for Mac – [Mac App Store]
Keynote for Mac – [Mac App Store]
Numbers for Mac – [Mac App Store]

Pages for iOS – [App Store]
Keynote for iOS – [App Store]
Numbers for iOS – [App Store]




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Apple Updates iWork for iOS/Mac, iMovie With Bug Fixes and Stability Improvements [Mac Blog]

Apple today released a series of minor updates for its suite of iWork apps for both iOS and Mac, adding stability improvements and fixing bugs. iMovie for Mac and iOS were also given a minor update, adding iCloud compatibility improvements for iMovie Theater.

Today’s minor update for the iWork apps follows a more significant update that was first released in April, adding several new features and improvements to return functionality that was removed when the new iWork apps were introduced in first September of 2013.

Apple’s line of iWork apps are available for free to users who have recently purchased a new Mac or iOS device. The iWork apps for iOS are otherwise available for $9.99 from the App Store, while the Mac versions are available from the Mac App Store for $19.99. iMovie for iOS is available for $4.99, while iMovie for Mac is available for $14.99.

Pages for Mac – [Mac App Store]
Numbers for Mac – [Mac App Store]
Keynote for Mac [Mac App Store]
iMovie for Mac [Mac App Store]

Pages for iOS – [App Store]
Numbers for iOS – [App Store]
Keynote for iOS – [App Store]
iMovie for iOS [App Store]




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