Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'parameters': 0.04; 'plug': 0.09; 'read-only': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'storage.': 0.09; 'subject:files': 0.09; 'subject:related': 0.09; 'tmp': 0.09; 'runs': 0.10; 'subject:question': 0.10; 'python': 0.11; 'jan': 0.12; 'windows': 0.15; 'pypi.': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'reedy': 0.16; 'subject:security': 0.16; 'so.': 0.16; 'wrote:': 0.18; 'later': 0.20; 'starts': 0.20; 'cloud': 0.22; 'header:User-Agent:1': 0.23; 'question': 0.24; 'compiled': 0.26; 'this:': 0.26; 'header:X -Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'host': 0.29; 'leave': 0.29; 'that.': 0.31; '(maybe': 0.31; 'about.': 0.31; 'trace': 0.31; "user's": 0.31; 'run': 0.32; 'but': 0.35; 'really': 0.36; 'data,': 0.36; 'should': 0.36; 'application': 0.37; 'being': 0.38; 'remote': 0.38; 'to:addr:python-list': 0.38; 'files': 0.38; 'pm,': 0.38; 'that,': 0.38; 'anything': 0.39; 'does': 0.39; 'received:71': 0.39; 'sure': 0.39; 'to:addr:python.org': 0.39; 'system.': 0.39; 'received:org': 0.40; 'tell': 0.60; 'information': 0.63; 'name': 0.63; 'temporary': 0.65; 'believe': 0.68; 'flash': 0.69; '3.4': 0.84; 'drive.': 0.84; 'nagy': 0.84; 'plugin.': 0.84; 'received:fios.verizon.net': 0.84; 'device.': 0.93 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Terry Reedy Subject: Re: cx_freeze and temporary files - security related question Date: Wed, 21 May 2014 13:29:19 -0400 References: <537CD792.5050608@shopzeus.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Gmane-NNTP-Posting-Host: pool-71-175-90-87.phlapa.fios.verizon.net User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 In-Reply-To: <537CD792.5050608@shopzeus.com> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 35 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1400693387 news.xs4all.nl 2952 [2001:888:2000:d::a6]:33772 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:71868 On 5/21/2014 12:42 PM, Nagy L=C3=A1szl=C3=B3 Zsolt wrote: > I need to create an application for Windows 7 that runs from a flash > drive. This program would be used to create remote backups of the > pendrive. The pendrive contains sensitive data, so when I plug in the > pendrive and run the program to make a backup, it should not leave any > trace of operation on the windows system. The information is so > sensitive that I was forbidden to use cloud storage. I was also > forbidden to make backups to a local drive, or leave any trace on the > host windows system. > > The question is this: if I create this program with Python 3.4 and > cx_Freeze, then what should I expect. I know that Python can be compiled so that it runs without being=20 installed, as from a usb plugin. I forget the name on pypi. I know=20 nothing whether cx_Freeze works for that. > When the user starts the > cx_freeze-d program from the flash drive, will it create temporary file= s > on the system drive? Will it leave log files or store any permanent or > temporary data on the system drive (maybe in the user's tmp folder) tha= t > can later be used to tell what drive was mounted, with what parameters > the program was started etc. I am really sure that *python* does not do anything like that, but do=20 not bet your job on my say so. I believe it can run from a read-only=20 directory or device. I don't know what *windows* might do that I do not=20 know about. --=20 Terry Jan Reedy