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@mrrrk
mrrrk / moon.py
Created December 2, 2017 16:05
Calculate lunar (moon) phase
import math, datetime
class Moon:
# average length of a lunar cycle (Wikipedia)
@staticmethod
def lunar_month_days(): return 29.530588853
@staticmethod
@atoponce
atoponce / gist:07d8d4c833873be2f68c34f9afc5a78a
Last active August 11, 2025 13:19 — forked from tqbf/gist:be58d2d39690c3b366ad
Cryptographic Best Practices

Cryptographic Best Practices

Putting cryptographic primitives together is a lot like putting a jigsaw puzzle together, where all the pieces are cut exactly the same way, but there is only one correct solution. Thankfully, there are some projects out there that are working hard to make sure developers are getting it right.

The following advice comes from years of research from leading security researchers, developers, and cryptographers. This Gist was [forked from Thomas Ptacek's Gist][1] to be more readable. Additions have been added from

@xvitaly
xvitaly / remove_crw.cmd
Last active July 12, 2025 09:00
Remove telemetry updates for Windows 7 and 8.1
@echo off
echo Uninstalling KB3075249 (telemetry for Win7/8.1)
start /w wusa.exe /uninstall /kb:3075249 /quiet /norestart
echo Uninstalling KB3080149 (telemetry for Win7/8.1)
start /w wusa.exe /uninstall /kb:3080149 /quiet /norestart
echo Uninstalling KB3021917 (telemetry for Win7)
start /w wusa.exe /uninstall /kb:3021917 /quiet /norestart
echo Uninstalling KB3022345 (telemetry)
start /w wusa.exe /uninstall /kb:3022345 /quiet /norestart
echo Uninstalling KB3068708 (telemetry)
@cuixin
cuixin / MersenneTwister.cs
Created August 7, 2014 15:42
Mersenne Twister in c# & golang
using System;
public class MT19937
{
private const ulong N = 312;
private const ulong M = 156;
private const ulong MATRIX_A = 0xB5026F5AA96619E9L;
private const ulong UPPER_MASK = 0xFFFFFFFF80000000;
private const ulong LOWER_MASK = 0X7FFFFFFFUL;
private static ulong [] mt = new ulong[N+1];
@ellemenno
ellemenno / spinner.rb
Created March 11, 2014 16:41
ascii spinner
#!/usr/bin/env ruby
# encoding: UTF-8
@dot_cycle = ['⣾','⣽','⣻','⢿','⡿','⣟','⣯','⣷']
#braille random: 0x2800 - 0x28ff
@z_arrow = ['←','↖','↑','↗','→','↘','↓','↙']
@z_b = ['b','ᓂ','q','ᓄ']
@z_d = ['d','ᓇ','p','ᓀ']
@andelf
andelf / sighup.go
Created June 29, 2013 05:25
golang process SIGHUP, HUP signal to reload configuration
// program
package main
import "os/signal"
import "os"
import "fmt"
import "syscall"
import "time"
@L-A
L-A / moonobject.js
Created August 28, 2012 13:20
Moon phase calculation
var MoonInfo = function(day, month, year) {
var n0 = parseInt( "0" );
var f0 = parseFloat( "0.0" );
var AG = f0; // Moon's age
var DI = f0; // Moon's distance in earth radii
var LA = f0; // Moon's ecliptic latitude
var LO = f0; // Moon's ecliptic longitude
var Phase = " ";
var Zodiac = " ";