marekyggdrasil

This repository contains my simplified AGE (Actually Good Encryption) http://age-encryption.org/v1 heavily based on pyage library.

It's purpose is to demonstrate the fact that GRIN core wallet implementation is producing incorrect HMAC signatures in its AGE-encrypted payloads.

1. slateage.py contains values implementated by the GRIN core wallet. My code correctly decrypts it only if HMAC verification is ignored. Decrypted payload contains the sender address.
2. validage.py contains official AGE test vector. My code correctly decrypts it and verifies the HMAC and matches the expected file key. Decrypted payload hash matches the expected value.

Another indicator the GRIN core wallet is producing flawed HMAC signatures is the fact that in grin++ wallet the HMAC verification also had to be commented out.

To run it, first setup

marekyggdrasil

def numberToBase(n, b):
    if n == 0:
        return [0]
    digits = []
    while n:
        digits.append(int(n % b))
        n //= b
    return digits[::-1]

marekyggdrasil

A very simple zkApp that allows user to deposit and withdraw. Run it with

node --experimental-vm-modules --experimental-wasm-modules --experimental-wasm-threads node_modules/jest/bin/jest.js -- fakemac.test.ts

marekyggdrasil

from functools import wraps

class ForbiddenDrink:
    def __init__(self, drinks):
        self.do_not_drink_that = drinks

    def __call__(self, func):
        @wraps(func)
        def wrapper(*args, **kwargs):
            innerself = args[0]

marekyggdrasil

GRIN Tipping Bot Bounty Proposal

by renzokuken

Introduction

This document aims to technically define the requirements for a Telegram bot that can deposit and withdraw GRIN digital cash cryptocurrency. It is meant to be regarded as a formal application for a bounty suggested in this forum post.

Use cases

Such a bot could serve more than one purpose.

marekyggdrasil

Running the version without arrayProp

[nodemon] starting `node --no-warnings --experimental-specifier-resolution=node --loader ts-node/esm try_circuit_serialization.ts`

* checking if JSONized objects match after parsing

{ a: '1', b: { value: '1' } }
{ a: '1', b: { value: '1' } }

marekyggdrasil

Runs and passes, but if I uncomment line 27 it fails with

 console.log
    oo

      at Object.mM [as caml_pasta_fp_plonk_index_create] (node_modules/snarkyjs/dist/server/node_bindings/snarky_js_node.bc.js:2:23985)

  console.log
 eyo

marekyggdrasil

#!/bin/sh
convert -background none inputs_before.png inputs_after.png +append inputs.png

marekyggdrasil

#!/bin/sh
convert -background none multisignature_alice.png multisignature_bob.png multisignature_composite.png +append multisignature_keys.png
convert -background none multisignature_nonces.png multisignature_lhs_signatures.png multisignature_rhs_signatures.png +append multisignature_verification.png

marekyggdrasil

from Crypto.Cipher import AES
from getpass import getpass

ciphertext = None
with open('ciphertext3.txt', 'r') as file:
    ciphertext = bytes.fromhex(file.read())

password = getpass('Password: ')
key = bytes(password, 'ascii')
key = key + b'\x00'*(16-len(key))