per9000 wrote: > Also I wonder if this can be solved with filestreams (Are there > streams in python? The only python file streams I found in the evil > search engine was stuff in other forums.)
Check the source to: http://passerby.sf.net In it you will find the jenncrypt module that makes a file-like wrapper around streams for encrypting and handles padding, etc. It is designed for a block cipher. This is not a trivial task, actually, but all the code is in there. It is not intensely well documented. It is somewhat well organized but this was my first full size attempt at a python application. Please read the notes to the "SecureRandom" module inside if you decide to use that module as the "name is misleading" under certain circumstances. It is used for the padding, although the randomness of the padding in a block cipher is in principle not a practical security issue in most cases. Other than the pad generation, the encryption algorithm is drop-in and I use the pycrypto implementation of AES. Read at least Schneier if you want to get started with such things as there are many caveats to using cryptographic systems. James -- James Stroud UCLA-DOE Institute for Genomics and Proteomics Box 951570 Los Angeles, CA 90095 http://www.jamesstroud.com/ -- http://mail.python.org/mailman/listinfo/python-list
