grugq

Simple Security Guidelines

Using an iDevice? (Best option)

• Use an iPod or an iPad without a SIM card
• Use an iPhone
• Do not jailbreak
• Always upgrade to new iOS versions
• Use Brave browser

Need Secure chat?

mjohnsullivan

// Updated example from http://rosettacode.org/wiki/Hello_world/Web_server#Rust
// to work with Rust 1.0 beta

use std::net::{TcpStream, TcpListener};
use std::io::{Read, Write};
use std::thread;


fn handle_read(mut stream: &TcpStream) {
    let mut buf = [0u8 ;4096];

grugq

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

hugozhu

package main
 
import (
  "io/ioutil"
  "log"
  "net"
  "net/http"
  "net/url"
  "strings"
  "time"

rednaxelafx

import java.io.*;
import java.util.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.tools.*;
import sun.jvm.hotspot.utilities.*;

public class DirectMemorySize extends Tool {

rednaxelafx

$ export SAPATH=/home/sajia/taobao-jdk-repo/hotspot/make/linux/linux_amd64_compiler2/generated/
$ java -classpath .:$SAPATH/sa-jdi.jar sun.jvm.hotspot.tools.JMap -histo `pgrep java` > jmap_output.log
Attaching to process ID 1587, please wait...
WARNING: Hotspot VM version 20.5-b03 does not match with SA version 20.0-b12-internal. You may see unexpected results. 
Debugger attached successfully.
Server compiler detected.
JVM version is 20.5-b03
Iterating over heap. This may take a while...
Heap traversal took 3.577 seconds.
$ java -version

mtigas

Client-side SSL

For excessively paranoid client authentication.

---

Updated Apr 5 2019:

because this is a gist from 2011 that people stumble into and maybe you should AES instead of 3DES in the year of our lord 2019.

some other notes:

tobitailor

/*
 *    Copyright (c) 2010 Tobias Schneider
 *    This script is freely distributable under the terms of the MIT license.
 */

(function(){
    var UPC_SET = {
        "3211": '0',
        "2221": '1',
        "2122": '2',