Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed0.kamp.net!newsfeed.kamp.net!feeder1.cambriumusenet.nl!82.197.223.108.MISMATCH!feeder2.cambriumusenet.nl!feed.tweaknews.nl!194.109.133.87.MISMATCH!newsfeed.xs4all.nl!newsfeed1a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-announce@python.org Delivered-To: python-announce-list@mail.python.org X-Spam-Status: OK 0.040 X-Spam-Evidence: '*H*': 0.92; '*S*': 0.00; 'open-source': 0.04; 'subject:ANN': 0.07; 'subject:released': 0.07; 'prefix': 0.09; 'received:eu': 0.16; 'substitution': 0.16; 'discussions': 0.16; 'language': 0.16; '(not': 0.18; 'programming': 0.22; 'header:User- Agent:1': 0.23; '2.0': 0.26; 'header:X-Complaints-To:1': 0.27; 'code': 0.31; 'announced': 0.31; 'idea,': 0.31; 'knowledge': 0.35; 'version': 0.36; 'scheme': 0.36; 'recent': 0.39; 'complete': 0.62; 'more': 0.64; 'due': 0.66; 'to:addr:comp-lang-python-announce': 0.70; 'paper': 0.75; 'to:addr:moderators.isc.org': 0.77; 'treating': 0.84; 'url:topic': 0.84 To: comp-lang-python-announce@moderators.isc.org From: Mok-Kong Shen Newsgroups: comp.lang.python.announce Subject: ANN: PREFIXCODING 2.0 released Date: Tue, 30 Dec 2014 10:57:16 +0100 Organization: albasani.net Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 Cancel-Lock: sha1:MerLyGXwTrP1XHvH9YKYC0RxNKk= X-Mailman-Approved-At: Tue, 30 Dec 2014 11:04:18 +0100 X-BeenThere: python-announce-list@python.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: python-list@python.org List-Id: Announcement-only list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Approved: python-announce-list@python.org Message-ID: Lines: 15 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1419933860 news.xs4all.nl 2842 [2001:888:2000:d::a6]:48426 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python.announce:1517 PREFIXCODING Version 2.0, an encryption scheme (with authentication) with pseudo-random prefix codes substitution and pseudo-random transposition, has been released: http://s13.zetaboards.com/Crypto/topic/7164646/1/. The code is to my knowledge currently the single open-source implementation available in any programming language of an idea, due to Motashemi and Wayner, to do encryption with Hufmann coding. Version 2.0 is a complete re-write of Version 1 (not announced in this group), following discussions with the author of a more recent paper treating that idea. M. K. Shen