Fast Software Encryption

FastSoftwareEncryption(FSE)isthe15thinaseriesofworkshopsonsymmetric cryptography. It is sponsored by the International Association for Cryptologic Research(IACR),andpreviousFSEworkshopshavebeenheldaroundtheworld: 1993 Cambridge, UK 1994 Leuven, Belgium 1996 Cambridge, UK 1997 Haifa, Israel 1998 Paris, France 1999 Rome, Italy 2000 New York, USA 2001 Yokohama, Japan 2002 Leuven, Belgium 2003 Lund, Sweden 2004 New Delhi, India 2005 Paris, France 2006 Graz, Austria 2007 Luxembourg, Luxembourg The FSE workshop is devoted to the foreground research on fast and secure primitivesforsymmetriccryptography,includingthedesignandanalysisofblock ciphers, stream ciphers, encryption schemes, analysis and evaluation tools, hash functions, and message authentication codes. This year 72 papers were submitted to FSE including a large number of hi- quality and focused submissions, from which 26 papers for regular presentation and 4 papers for short presentation were selected. I wish to thank the authors of all submissions for their scienti?c contribution to the workshop. The workshop also featured an invited talk by Lars R. Knudsen with the title "Hash functions and SHA-3." The traditional rump session with short informal presentations on current topics was organized and chaired by Daniel J. Bernstein. EachsubmissionwasreviewedbyatleastthreeProgramCommitteemembers. Each submission originating from the Program Committee received at least ?ve reviews.The?nalselectionwasmadeafterathoroughdiscussion.Iwishtothank all ProgramCommittee members and referees for their generouswork.I am also gratefulto ThomasBaign` eresformaintainingandcustomizingthe iChair review management software, which o?ered an excellent support for the demanding reviewing task. I would also like to thank him for setting up a beautiful and informative website and for compiling the pre-proceedings.