ark-vrf 0.5.1

Elliptic curve VRF with additional data
Documentation 
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#!/usr/bin/env python

import json
import sys


# Max lengths for the entries before splitting on multiple lines
entries_max_lengths = {
    # Common stuff
    "sk": 64,
    "pk": 66,
    "alpha": 64,
    "ad": 64,
    "h": 66,
    "gamma": 66,
    "beta": 64,
    # Ietf proof entries
    "proof_c": 64,
    "proof_s": 64,
    # Pedersen extra entries
    "blinding": 64,
    "proof_pk_com": 66,
    "proof_r": 66,
    "proof_ok": 66,
    # proof_s (already listed)
    "proof_sb": 64
}

def print_entry(entry, key, max_length=64, continuation_prefix=".."):
    value = entry.get(key, "-")
    text = value if value else "-"
    first_line = True

    while len(text) > max_length:
        split_point = max_length
        print(text[:split_point])
        text = continuation_prefix + text[split_point:]
        if first_line is True:
            max_length += len(continuation_prefix)
            first_line = False
    print("{},".format(text))


def main(file_name):
    with open(file_name, 'r') as file:
        data = json.load(file)

    print("----- SCHEMA -----")
    schema = []
    for key in data[0]:
        if key == "comment":
            continue
        len = entries_max_lengths.get(key, 64)
        schema.append((key, len))
        print(key)
    print("------------------\n")

    for entry in data:
        comment = entry.get("comment", "???")
        print("### {}".format(comment))
        print("\n```")
        for (key, line_max) in schema:
            print_entry(entry, key, line_max)
        print("```\n")


if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: {} <vectors.json>".format(sys.argv[0]))
        sys.exit(1)

    file_name = sys.argv[1]
    main(file_name)