From java-user-return-20504-apmail-lucene-java-user-archive=lucene.apache.org@lucene.apache.org Sat May 06 01:17:15 2006 Return-Path: Delivered-To: apmail-lucene-java-user-archive@www.apache.org Received: (qmail 56996 invoked from network); 6 May 2006 01:17:14 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199) by minotaur.apache.org with SMTP; 6 May 2006 01:17:14 -0000 Received: (qmail 84479 invoked by uid 500); 6 May 2006 01:17:08 -0000 Delivered-To: apmail-lucene-java-user-archive@lucene.apache.org Received: (qmail 84452 invoked by uid 500); 6 May 2006 01:17:07 -0000 Mailing-List: contact java-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: java-user@lucene.apache.org Delivered-To: mailing list java-user@lucene.apache.org Received: (qmail 84441 invoked by uid 99); 6 May 2006 01:17:07 -0000 Received: from asf.osuosl.org (HELO asf.osuosl.org) (140.211.166.49) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 May 2006 18:17:07 -0700 X-ASF-Spam-Status: No, hits=1.9 required=10.0 tests=DNS_FROM_RFC_ABUSE,DNS_FROM_RFC_POST,MSGID_FROM_MTA_HEADER,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (asf.osuosl.org: domain of gws293@hotmail.com designates 64.4.51.32 as permitted sender) Received: from [64.4.51.32] (HELO hotmail.com) (64.4.51.32) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 May 2006 18:17:06 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 5 May 2006 18:16:45 -0700 Message-ID: Received: from 64.4.51.220 by by107fd.bay107.hotmail.msn.com with HTTP; Sat, 06 May 2006 01:16:43 GMT X-Originating-IP: [125.255.18.237] X-Originating-Email: [gws293@hotmail.com] X-Sender: gws293@hotmail.com From: "George Washington" To: java-user@lucene.apache.org Subject: Encryption Date: Sat, 06 May 2006 01:16:43 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 May 2006 01:16:45.0811 (UTC) FILETIME=[BDD2FC30:01C670AA] X-Virus-Checked: Checked by ClamAV on apache.org X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N I am using Lucene to index as well as to store complete source documents (typically few tens of thousands of documents, not millions). I would like to protect the source documents with encryption but have the following questions: Is it possible to reconstruct a complete source document from the data stored in the index, even if the fields are only indexed but not stored? Because if the answer is "yes" there is no point in encrypting, unless the index itself can be encrypted. Is it feasible to encrypt the index? If some of the source document fields are also stored in the index, can they be encrypted after indexing (and decoded following a search) without any side effects? Many thanks Victor _________________________________________________________________ Research and compare new cars side by side at carpoint.com.au http://secure-au.imrworldwide.com/cgi-bin/a/ci_450304/et_2/cg_801459/pi_1004813/ai_833884 --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org For additional commands, e-mail: java-user-help@lucene.apache.org