Managed to jail break and SIM unlock my iPhone 3GS (iOS 5.0.1, FW=06.15.00)

After many hours of effort, I finally managed to get my iPhone 3GS SIM unlocked so that I could use it in Europe with a Lebara SIM. I am not reporting the detailed instructions here because there are so many good descriptions already on the web. I just want to report the overall experience in the hope that it might save someone else the trouble that I had.
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C++ class that interfaces to OpenSSL ciphers

I have developed a class named Cipher that allows you to encrypt and decrypt files or strings using the OpenSSL AES-256-CBC cipher and SHA1 digest algorithms. It is interoperable with the openssl command line tool which makes it a good introduction to using OpenSSL for ciphers.

I am re-releasing version 1.2 into the public domain on 2013-11-21 because I wish that I had found something like it when I was starting out with OpenSSL.
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Bash script to install gcc 4.7.0 and boost 1.49

I recently wanted to build gcc 4.7.0 on CentOS 5.5 to get access to more C++11 features so I put together this script to do all of the work. It is released in text mode so that you can cut-n-paste it from the web page. The shell version is also available: http://projects.joelinoff.com/gcc-4.7.0/bld.sh if you want to download it directly using a tool like wget.

The full installation of gcc-4.7.0 and boost-1.49 requires about 4GB of disk space. After the build is complete you can delete the archives, bld and src directory trees to reclaim about 3.4GB of disk space.
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