Yunga Palatino yunga

Introduction
Standards
Common combinations
Conversion
Verification/Inspection
Tips for recognising

Introduction

It happens that there are many standards for storing cryptography materials (key, certificate, ...) and it isn't always obvious to know which standard is used by just looking at file name extension or file content. There are bunch of questions on stackoverflow asking about how to convert from PEM to PKCS#8 or PKCS#12, while many tried to answer the questions, those answers may not help because the correct answer depends on the content inside the PEM file. That is, a PEM file can contain many different things, such as an X509 certificate, a PKCS#1 or PKCS#8 private key. The worst-case scenario is that someone just store a non-PEM content in "something.pem" file.

GRUB INIT TUNE

A GRUB_INIT_TUNE uses the following format: tempo [freq duration] [freq duration]…

tempo: is the base for all note durations in beats per minute, 60 gives a second base (60s/60 = 1s), 120 gives a half-second base, etc.
freq: is the frequency (in hertz) of the sound (set 0 to produce a rest)
duration: is the duration of the sound in beats

You can preview the tunes below with the standalone index.html included in this gist.

Sci-fi Books

Powershell Rosetta Stone

[CMD]	[Unix]	[Powershell]	Synopsis
HELP	[man]	[Get-Help]	Displays information about commands and concepts.
	[apropos]	[Get-Command]	Gets all commands.
		[Show-Command]	Displays PowerShell commands in a graphical window.

	<!doctype html>

	<title>SVG Unicode Emoji Favicon</title>
	<link rel='icon' href='data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text x="50%" y="50%" dominant-baseline="middle" text-anchor="middle" font-size="99">🎮</text></svg>'>

	<style>
	body {
	display : grid;
	align-items : center;
	justify-content : center;

	<!DOCTYPE html>

	<title>Javascript Clock Example</title>

	<style>
	body {
	font-family: Monospace;
	font-weight: 600;
	font-size: calc(100vw / 5.5);
	-webkit-text-stroke: calc(100vw / 200) #000;

	# source:http://reocities.com/SiliconValley/heights/7052/opcode.txt
	From: [email protected] (Mark Hopkins)
	Newsgroups: alt.lang.asm
	Subject: A Summary of the 80486 Opcodes and Instructions

	(1) The 80x86 is an Octal Machine
	This is a follow-up and revision of an article posted in alt.lang.asm on
	7-5-92 concerning the 80x86 instruction encoding.

	The only proper way to understand 80x86 coding is to realize that ALL 80x86

	#!/usr/bin/perl

	# This filter changes all words to Title Caps, and attempts to be clever
	# about uncapitalizing small words like a/an/the in the input.
	#
	# The list of "small words" which are not capped comes from
	# the New York Times Manual of Style, plus 'vs' and 'v'.
	#
	# 10 May 2008
	# Original version by John Gruber:

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	function linkHighlight() {
	let colors = {
	"HostBg": "#00F", "Host": "#FFF", "HostOut": "#000",
	"DomainBg": "#808", "Domain": "#FFF", "DomainOut": "#000",
	"OtherBg": "#F00", "Other": "#FFF", "OtherOut": "#000",
	"WikiBg": "#FF0", "Wiki": "#000", "WikiOut": "#000",
	};

	let Hosts = {};
	let Domains = {};