From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/1786 Path: main.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: PDF Questions Date: Mon, 27 Mar 2000 18:37:03 +0200 Sender: owner-ntg-context@let.uu.nl Message-ID: <3.0.6.32.20000327183703.00b747d0@pop.wxs.nl> References: <000c01bf97ef$3914b6e0$5c0361c3@chris> <3.0.6.32.20000327165047.013f68b0@pop.wxs.nl> NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Trace: main.gmane.org 1035392595 3189 80.91.224.250 (23 Oct 2002 17:03:15 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 23 Oct 2002 17:03:15 +0000 (UTC) Cc: NTG-ConTeXt mailing list Original-To: ecashin@coe.uga.edu (Ed L. Cashin) In-Reply-To: Xref: main.gmane.org gmane.comp.tex.context:1786 X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:1786 >Didn't someone knowledgable-sounding on the pdftex list say that it's >complicated by the fact that Adobe is not releasing some keys >necessary to make it work? RC4 is a copywritten, proprietary algorithm of RSA Data Security, Inc. Adobe Systems has licensed this algorithm for use in its Acrobat products. Independent software vendors may be required to license RC4 to develop software that encrypts or decrypts PDF documents. For further information please send e-mail to products@rsa.com or visit the RSA web server at http://www.rsa.com/. So, anyone paying for the licence ... we only need encryption -) Incredible that they didn't use a public method. When does the patent end? Anyhow, this encryption sort of violated portability anyway. Imagine that you would need a decription device for novels and paperbacks. Hans Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.nl -----------------------------------------------------------------