Subject: CCPE Portal C544 From: "Tomasz Haupt" Date: Mon, 1 Oct 2001 18:11:29 -0500 To: "Geoffrey Fox" X-UIDL: 05181f0f860c0000 X-Mozilla-Status: 0001 X-Mozilla-Status2: 00000000 Received: by mailer.csit.fsu.edu (mbox gcfpc) (with Cubic Circle's cucipop (v1.31 1998/05/13) Sun Oct 14 18:05:43 2001) X-From_: fox@mailer.csit.fsu.edu Sun Oct 14 18:05:32 2001 Return-Path: Delivered-To: gcfpc@csit.fsu.edu Received: from dirac.csit.fsu.edu (dirac.csit.fsu.edu [144.174.128.44]) by mailer.csit.fsu.edu (Postfix) with ESMTP id E877423A07 for ; Sun, 14 Oct 2001 18:05:31 -0400 (EDT) Received: from localhost by dirac.csit.fsu.edu (AIX4.2/UCB 8.7) id SAA16862; Sun, 14 Oct 2001 18:05:31 -0400 (EDT) Resent-Message-Id: <200110142205.SAA16862@dirac.csit.fsu.edu> Delivered-To: fox@csit.fsu.edu Received: from ERC.MsState.Edu (Sniper.ERC.MsState.Edu [130.18.14.12]) by mailer.csit.fsu.edu (Postfix) with ESMTP id 1C6A523A06 for ; Mon, 1 Oct 2001 19:05:26 -0400 (EDT) Received: from hauptpc (Hauptpc.ERC.MsState.Edu [130.18.13.64]); by ERC.MsState.Edu (8.11.4/8.11.1/ERC-Mailhost/1.11) with SMTP; id f91N5Lb03681 for ; Mon, 1 Oct 2001 18:05:21 -0500 (CDT) Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: <200110011823.OAA90584@dirac.csit.fsu.edu> X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700 Importance: Normal Resent-To: Geoffrey Fox Resent-Date: Sun, 14 Oct 2001 18:05:31 -0400 Resent-From: Geoffrey Fox C544 "A CORBA Commodity Grid Kit" This paper describes design and implementation of CORBA CoG that provides CORBA-based access to Grid services. It is very relevant and interesting subject, as it has potential for constructing Grid Computing Environments using (distributed) object-oriented approach. The functionality of CORBA CoG is similar to that of Java CoG, and therefore can be regarded as an alternative to Java-based grid middleware. Integration of Globus and CORBA is not an easy task, since (as authors carefully pointed it out) there is a significant overlap in architecture of the two systems. The critical element is as usual the security. Unfortunatelly, the paper does not describe this in full details. A hybrid solution is used: CORBA security services and GSI. An itermediary object is used to "forward" the client credentials to the GRAM server. What is not explained is how the client authenticates to the intermediary, and how the user credentials (a proxy certificate) is stored. However, this and some other small glitches does not change my general impression that the paper descibes a very interesting and good work (which hopefully will be continued), and the paper itself is very well written. Definitely I recommend this paper for publication in the special issue of concurrency. .