Cyber Security, IT Security, Cyber Defence

BlindFTP - one-way file transfer for a network data diode

BlindFTP is a simple and portable tool for file transfers through unidirectional network connections (without acknowledge), for instance an optical network diode.

pyClamd - use ClamAV antivirus from Python

pyClamd is a portable Python module to use the ClamAV antivirus engine on Windows, Linux, MacOSX and other platforms. It requires a running instance of the clamd daemon. pyClamd is more portable than pyClamAV because it does not need to be compiled, so it works on Windows.

This is a slightly improved version of pyClamd v0.1.1 originally created by Alexandre Norman and published on his website:

XML Canonicalization (C14N) in Python using lxml

XML Canonicalization (C14N) is useful in some cases such as digital signature.
lxml provides a very easy way to do it in Python. However, the current version lxml 2.1 does not give access to all C14N parameters. Here is a simple patch to improve its C14N support.

Using XML-DSig and OpenSSL in Python

Using XML-DSig (XML Digital Signature) and OpenSSL from Python scripts is not straightforward, but there are solutions. Here are a few links to useful libraries and articles.

Windows Offline Update tool

Updating Windows machines which are not connected to the Internet has always been an issue, especially when it is a new install and there are dozens of security updates to find, download and install.

Torsten Wittrock (formerly Heise Security) has published a very handy open-source tool to make all the process (almost) easy, called "WSUS Offline Update".

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