Published an open source Sphinx packet implementation

I just published an open source implementation of Sphinx packet, pysphinx, that can be used for mix network projects like Nym.

This implementation complies with the standard Sphinx packet specification.

The initial version v0.0.1 provides most of basic functionalities:

• Constructing a Sphinx packet with encapsulations (encryption)
• Deconstructing a Sphinx packet

The v0.0.1 doesn’t support the following features yet:

• Specifying delays and SURB identifiers when constructing Sphinx packets: https://github.com/youngjoon-lee/pysphinx/issues/2
• Payload encryption: https://github.com/youngjoon-lee/pysphinx/issues/4