This is a simple socket program that allows two users to talk to each other using network programming. Run './chat -h' for usage. Contact me for the source code. The binary for linux can be downloaded here. Note: this was compiled on Linux Fedora.
This is a simple block and stream cipher program. For the block cipher it swaps one bit with the one next to it. For the stream it XOR's a bit stream with a key. To encrypt, run the program with the proper arguments (./cipher for usage). Then to decrypt run the program again on the output file. This works for both the stream and block cipher. Email me for the source and get the Linux Fedora compiled binary here.