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Andrey Chernykh andreychernih

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@takeshixx
takeshixx / hb-test.py
Last active Nov 2, 2020
OpenSSL heartbeat PoC with STARTTLS support.
View hb-test.py
#!/usr/bin/env python2
"""
Author: takeshix <takeshix@adversec.com>
PoC code for CVE-2014-0160. Original PoC by Jared Stafford (jspenguin@jspenguin.org).
Supportes all versions of TLS and has STARTTLS support for SMTP,POP3,IMAP,FTP and XMPP.
"""
import sys,struct,socket
from argparse import ArgumentParser
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 — forked from jboner/latency.txt
Latency numbers every programmer should know
View latency.markdown

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns  = 250 µs
@mislav
mislav / application_with_config.rb
Created Aug 24, 2010
Read custom config from settings.yml into a Rails 3 app
View application_with_config.rb
# needs the "hashie" gem in Gemfile
require 'erb'
module Movies
class Application < Rails::Application
# read from "settings.yml" and optional "settings.local.yml"
settings = ERB.new(IO.read(File.expand_path('../settings.yml', __FILE__))).result
mash = Hashie::Mash.new(YAML::load(settings)[Rails.env.to_s])
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