heikoheiko

[buildout]
eggs-directory = /home/ralf/.buildout/cache/eggs
download-cache = /home/ralf/.buildout/cache/download
extends-cache = /home/ralf/.buildout/extends
index = http://pypi/simple/

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.DS_Store
*.log
Gemfile.lock

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def int_to_big_endian(integer):
    '''convert a integer to big endian binary string'''
    if integer == 0:
        return '' 
    s = '%x' % integer
    if len(s) & 1:
        s = '0' + s
    return s.decode('hex')

def big_endian_to_int(string):

heikoheiko

==== ALARM ====

Description:
    - contracts can schedule future calls to themself, by specifying:
        - block height
        - gas
        - msgdata
    - scheduled calls are sorted by (gas, hash(account, msgdata)) # prevent DOS
        and executed in this stable sorted order before any other tx
    - on OOG: # includes no more existent account, balance

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Requirements:
- I/O bound: cycles spent on I/O ≫ cycles spent in cpu
- no sharding: impossible to implement data locality strategy
- easy verification

Thoughts:

heikoheiko

{
  "comment": "\n    'node_ids': hex encoded ids in order in which they were added to the routing table\n    'buckets' : buckets sorted asc by range\n    ", 
  "buckets": [
    {
      "start": "0x0", 
      "end": "0x1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffL", 
      "node_ids": [
        "0x1d7425638602ab696a402f23ae8cc938dcdcd03969b666205628059568cc69b1064005c3985c3cf3f76be1d1efa21977394988f847fd9b4e64d1bcb702753a1L", 
        "0x1825bc5430beb45f683514f2ceb81f9d7914c120c8dcd19f3e3511287900f7f993829b43922fe15ae1e3db63ef7ddc76b92da22b21df306f8a0b3c3336d8393aL", 
        "0xf844fef1931e9eea56c0941fbf24050a748dbcfac619e630dde29a6baa4b71add2467ac778eedb3693dffbc6c6fa6115ab33edf6e595ed3a8b317fa18d0752bL", 

heikoheiko

"""
cython + gmp  implementation of ecdsa recover

based on:
https://github.com/vbuterin/pybitcointools


"""

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import sys
from ethereum import trie
from ethereum.securetrie import SecureTrie
from ethereum import blocks
import ethereum.chain
from pyethapp.leveldb_service import LevelDB
from ethereum.utils import big_endian_to_int

db = LevelDB(sys.argv[1])

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# after entering the console of pyethapp
# https://github.com/ethereum/pyethapp/wiki/The_Console

from devp2p import kademlia
import gevent

def crawl():
    delay = 0.1
    lookups = 0
    kademlia_proto = eth.app.services.discovery.protocol.kademlia

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import trie
import rlp
import db
import time

trie.rlp_encode = rlp.codec.encode_raw


def int_to_big_endian(value):
    cs = []