Test cases and auditing of operation of Pedersen-DLEQ proofs for the "Anonymous Usage Tokens with Curve Trees" project.

Should be installable with pip install ..

Note that there is currently only one external dependency, namely this one, which we use for manipulation of secp256k1 points in Python.

To create test cases, run src/peddleq.py create. See that source file for other possible arguments for auditing specific cases.

Note that a big chunk of the complexity is not so much the processing of the sigma protocol, but the creation of the hash challenge. In the root project, Merlin is used to create transcripts, which in turn uses STROBE, which has a very specific, complex protocol to create a PRF output from labels and transcript elements. See detailed commentary in peddleq.py.