any ANONYMOUS forum user
01-21-2010, 10:16 PM
Jon Johansen, a.k.a. DVDJon, known for cracking CSS (Content Scrambling System) DRM used on DVDs, discovered multiple methods for removing encryption from Apple iTunes (http://all-streaming-media.com/downloadable-audio-and-video/iTunes-Store-online-music-and-video-download-service.htm) FairPlay DRM-protected files while working to build an iTunes client for Linux:
The first one, QTFairUse (http://undrm.info/remove-DRM-protection/QTFairUse-free-Windows-software-for-removing-copy-protection-from-iTunes-files.htm) - grabbs song data after it is unlocked and uncompressed by iTunes, and then dumps the raw stream into a large container file, requiring further processing afterward.
The second, written by Johansen for the open source VLC media player - and reused in PlayFair, Hymn, JHymn and other derivatives - intercepts unlocked but not yet uncompressed song files, creating a small, ready to play, unencrypted AAC file.
PyMusique - a Linux client for the iTunes Store, pretends to be iTunes. It requested songs from Apple's servers and then downloaded the purchased songs without locking them, as iTunes would.
FairKeys - pretends to be iTunes; it requests a user's keys from Apple's servers and then uses these keys to unlock existing purchased songs.
More DRM removal software (http://undrm.info/remove-DRM-protection/) for iTunes:
Requiem (http://undrm.info/remove-DRM-protection/Requiem-freeware-Mac-and-PC-DRM-remover-for-iTunes-files.htm) - decrypts .m4p files. It doesn't use any Apple libraries - it is a complete reverse engineering of Apple's DRM scheme.
And you can always burn .m4p files bought in iTunes to a CD and rip the from the CD. This is not a lossless method unless you rip your CD to lossless FLAC, Monkey Audio,... which is a waste of hard disk space.
The first one, QTFairUse (http://undrm.info/remove-DRM-protection/QTFairUse-free-Windows-software-for-removing-copy-protection-from-iTunes-files.htm) - grabbs song data after it is unlocked and uncompressed by iTunes, and then dumps the raw stream into a large container file, requiring further processing afterward.
The second, written by Johansen for the open source VLC media player - and reused in PlayFair, Hymn, JHymn and other derivatives - intercepts unlocked but not yet uncompressed song files, creating a small, ready to play, unencrypted AAC file.
PyMusique - a Linux client for the iTunes Store, pretends to be iTunes. It requested songs from Apple's servers and then downloaded the purchased songs without locking them, as iTunes would.
FairKeys - pretends to be iTunes; it requests a user's keys from Apple's servers and then uses these keys to unlock existing purchased songs.
More DRM removal software (http://undrm.info/remove-DRM-protection/) for iTunes:
Requiem (http://undrm.info/remove-DRM-protection/Requiem-freeware-Mac-and-PC-DRM-remover-for-iTunes-files.htm) - decrypts .m4p files. It doesn't use any Apple libraries - it is a complete reverse engineering of Apple's DRM scheme.
And you can always burn .m4p files bought in iTunes to a CD and rip the from the CD. This is not a lossless method unless you rip your CD to lossless FLAC, Monkey Audio,... which is a waste of hard disk space.