From 6ea3f92109836bdb6c3658a0284339715066a962 Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Wed, 21 Jun 1995 02:19:55 +0000 Subject: added notes about security --- Demo/pdist/README | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Demo/pdist/README b/Demo/pdist/README index 2312061..37719cb 100644 --- a/Demo/pdist/README +++ b/Demo/pdist/README @@ -1,6 +1,8 @@ Filesystem, RCS and CVS client and server classes ================================================= +*** See the security warning at the end of this file! *** + This directory contains various modules and classes that support remote file system operations. @@ -23,6 +25,8 @@ RCSProxy.py RCS interface classes client.py Client class server.py Server class +security.py Security mix-in class (not very secure I think) + cmdfw.py CommandFrameWork class (used by rcvs, should be used by rrcs as well) @@ -82,3 +86,15 @@ instantiate a client. The modules client and server should probably be renamed to Client and Server in order to match the class names. + + +*** Security warning: this version requires that you have a file +$HOME/.python_keyfile at the server and client side containing two comma- +separated numbers. The security system at the moment makes no guarantees +of actuallng being secure -- however it requires that the key file +exists and contains the same numbers at both ends for this to work. +(You can specify an alternative keyfile in $PYTHON_KEYFILE). +Have a look at the Security class in security.py for details; +basically, if the key file contains (x, y), then the security server +class chooses a random number z (the challenge) in the range 10..100000 +and the client must be able to produce pow(z, x, y) (i.e. z**x mod y). -- cgit v0.12