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FreeOTFE is a discontinued open source computer program for on-the-fly disk encryption (OTFE). On Microsoft Windows, and Windows Mobile (using FreeOTFE4PDA), it can create a virtual drive within a file or partition, to which anything written is automatically encrypted before being stored on a computer's hard or USB drive. It is similar in function to other disk encryption programs including TrueCrypt and Microsoft's BitLocker.〔David A. Karp, Windows Vista annoyances, O'Reilly Media, Inc., 2008, ISBN 0-596-52762-4, page 5.〕 The author, Sarah Dean, went absent as of 2011. The FreeOTFE website is unreachable as of June 2013 and the domain name is now registered by a domain squatter. The original program can be downloaded from (a mirror at Sourceforge ). In June 2014, a fork of the project now named LibreCrypt appeared on GitHub.〔(LibreCrypt on GitHub )〕 == Overview == ''FreeOTFE'' was initially released by Sarah Dean in 2004, and was the first open source code disk encryption system that provided a modular architecture allowing 3rd parties to implement additional algorithms if needed. Older FreeOTFE licensing required that any modification to the program be placed in the public domain. This does not conform technically to section 3 of the Open Source definition. Newer program licensing omits this condition. The FreeOTFE license has not been approved by the (Open Source Initiative ) and is not certified to be labeled with the open-source certification mark. This software is compatible with Linux encrypted volumes (e.g. LUKS, cryptoloop, dm-crypt), allowing data encrypted under Linux to be read (and written) freely. It was the first open source transparent disk encryption system to support Windows Vista and PDAs.〔(FreeOTFE version history )〕〔Michael Mandaville, Citizen-Soldier Handbook: 101 Ways Every American Can Fight Terrorism, Dog Ear Publishing, 2009 ISBN 1-59858-671-8, page 253.〕〔Gregory B. White, Wm. Arthur Conklin, Dwayne Williams, Roger L. Davis, Chuck Cothren, ''CompTIA Security+ All-in-One Exam Guide'', Second Edition, McGraw Hill Professional, 2008, ISBN 0-07-160127-9, page 103.〕〔Bryan Burns, Jennifer Stisa Granick, Steve Manzuik, Paul Guersch, Dave Killion, Nicolas Beauchesne, ''Security power tools'', O'Reilly Media, Inc., 2007, ISBN 0-596-00963-1, page 523.〕 Optional two-factor authentication using smart cards and/or hardware security modules (HSMs, also termed security tokens)〔(Security Token/Smartcard Support )〕 was introduced in v4.0, using the PKCS#11 (Cryptoki) standard developed by RSA Laboratories. ''FreeOTFE'' also allows any number of "hidden volumes" to be created, giving plausible deniability and deniable encryption, and also has the option of encrypting full partitions or disks (but not the system partition).〔(Partition/Entire Disk Based Volumes )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「FreeOTFE」の詳細全文を読む スポンサード リンク
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