sphinx mixnet packet crypto for golang

Warning

This code has not been formally audited by a cryptographer. It therefore should not be considered safe or correct. Use it at your own risk! (however test vectors are verified using other language implementations: rust, golang, python trinity!)

details

Read the Sphinx paper:

Sphinx: A Compact and Provably Secure Mix Format by George Danezis and Ian Goldberg

• http://www0.cs.ucl.ac.uk/staff/G.Danezis/papers/sphinx-eprint.pdf

status

This package is binary compatible with the python library:

• https://github.com/david415/sphinxmixcrypto

The two libraries share unit test vectors to prove that they are binary compatible.

dependencies

You can see a list of dependencies on godocs:

• https://godoc.org/github.com/david415/go-sphinxmixcrypto?imports

Currently this library depends on my own LIONESS wide block cipher implementation:

• https://github.com/david415/go-lioness

The other external dependencies include:

• https://git.schwanenlied.me/yawning/chacha20
• https://github.com/minio/blake2b-simd
• https://golang.org/x/crypto/curve25519

license

go-sphinxmixcrypto is free software made available via the MIT License. License details located in the LICENSE file.

Some code was inspired or copied from Lightning-Onion's partial Sphinx implementation located here:

• https://github.com/lightningnetwork/lightning-onion/blob/master/sphinx.go
• https://github.com/lightningnetwork/lightning-onion/blob/master/sphinx_test.go

Included in this repo is Lightning-Onion's MIT License file: LICENSE-lightening-onion

contact

• email dstainton415@gmail.com
• gpg key ID 0x836501BE9F27A723
• gpg fingerprint F473 51BD 87AB 7FCF 6F88 80C9 8365 01BE 9F27 A723