amitsaha

tmux cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

minikomi

package main

import (
        "encoding/json"
        "fmt"
        "github.com/gorilla/sessions"
        "io/ioutil"
        "log"
        "net/http"
        "net/url"

OverlordQ

#!/usr/bin/env python

import asyncio
import websockets
import binascii
import ujson as json

method_map = {
  '6d01': 'Set Name',
  '6d02': 'Post Memo',

dysinger

#!/bin/sh
# linux firewall/forwarding
modprobe iptable_nat
echo 1 | tee /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -s 10.10.10.1/2 -o eth0 -j MASQUERADE
# install openvpn
apt-get update && apt-get install -y openvpn
cd /etc/openvpn/
INSTANCE=$(curl http://169.254.169.254/latest/meta-data/public-hostname)
openvpn --genkey --secret ${INSTANCE}.key

achow101

diff --git a/src/alert.cpp b/src/alert.cpp
index aa7ac748da..1c679e9fda 100644
--- a/src/alert.cpp
+++ b/src/alert.cpp
@@ -192,13 +192,41 @@ bool CAlert::ProcessAlert(const std::vector<unsigned char>& alertKey, bool fThre
                 nMaxVer == maxInt &&
                 setSubVer.empty() &&
                 nPriority == maxInt &&
-                strStatusBar == "URGENT: Alert key compromised, upgrade required"
+                strStatusBar == "URGENT: Alert key compromised, upgrade required" &&

davecheney

#!/bin/bash

go test -c
PKG=$(basename $(pwd))
set -e

while true ; do
        export GOMAXPROCS=$[ 1 + $[ RANDOM % 128 ]]
        ./$PKG.test $@ 2>&1
done

emschwartz

1st ETH -> XRP Interledger Escrow Payment

Here are the transaction IDs (and links to the block explorers) for the first livenet Ethereum and Ripple Consensus Ledger (RCL) escrowed transfers comprising an Interledger payment.

1. Ethereum prepare: 0x00cbb6149b9cfb3cedf280251c3060b2a38776fa7792b578b6f9f39ce5ee0266
2. RCL prepare: 7F0A5F16C84568D96DA6A66058CD9EAA881236237642BF7427A458957A752B6B
3. RCL fulfill: 12A4CAFAE95254844513C5C11488A1195C08DEFF673C97AC74AAC121935DDE36
4. Ethereum fulfill: 0xb59dd839ab0b5e7d4e663b7cfc0ddb70eaf73dd2785b3d3a4abdf1a61817007d

SHA-256 Condition: `d2

markblundeberg

---

Advisory: secret size attack on cross-chain hash lock smart contracts

Dr. Mark B Lundeberg, 2018 Feb 15 bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2

This security advisory notes a vulnerability in the common construction of cross-chain smart contracts (contracts between distinct cryptocurrencies) through hash locking. I focus on the primary use case in [atomic

laanwj

This has moved to https://github.com/bitcoin/bitcoin/blob/master/doc/reduce-memory.md

gavinandresen

O(1) Block Propagation

The problem

Bitcoin miners want their newly-found blocks to propagate across the network as quickly as possible, because every millisecond of delay increases the chances that another block, found at about the same time, wins the "block race."