[EN] Cracking and analyzing Apple iCloud protocols: iCloud backups, Find My iPhone, document storage

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Presented at Nuit 2013 by

Vladimir Katalov

Apple iCloud was meant to improve flexibility and comfort when using your iDevices, however it also provides opportunities to extract as much as everything about the user. iCloud stores large amounts of information and before now access to this info was restricted either by the necessity to have iDevice available or by using Internet and web-browser (knowing Apple ID and password is required). Now, that we have reverse-engineered Apple iCloud communication protocols we can suggest an alternative technology to reach and download iCloud data and its changes in standalone mode. This is the first report on Apple iCloud communication protocols. No details on these protocols or their encryption are publicly available, that is why they had to be reverse-engineered. Up to this day, nothing similar has been made (that we know of) which makes it innovative. Results of the research of protocols bring more light to iCloud specifics and allow us getting and processing its contents in alternative ways.