Koki Yasuda orleika

How to make x.509 self-signed certificate

# openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout myPrivateKey.key -out myCert.pem
# chmod 600 myPrivateKey.key
# openssl  x509 -outform der -in myCert.pem -out myCert.cer

myCert.cer

Git ssh key

registration a ssh key with Github

Make ssh key

Answer yes to the all questions, and ~/.ssh/id_ed25519[.pub] are generated.

$ ssh-keygen -t ed25519 -C "[email protected]"

	ascii -> hex(little endian)
	echo "/bin/sh" \| rev \| xxd -p \| sed 's/.\{2\}$//' \| fold -s8 \| sed 's/^\(.*\)/0x\1/g'

	hex format
	echo "68732f6e69622f" \| sed 's/^0x\(.*\)$/\1/g' \| fold -s2 \| perl -pe 's/(\w{2})\s+/\\x\1/g'

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<title>Fix x-y-header table</title>
	<style>
	.view-table {
	overflow: scroll;
	width: 600px;

	## Requirements
	Python

	`$ npm install -g phantomjs`

	`$ npm install -g casperjs`

	## Run
	`$ casperjs index.js`

	(define (atom? x)
	(and (not (null? x))
	(not (pair? x))))

	(define (append a b)
	(cond ((null? a) b)
	(else (cons (car a) (append (cdr a) b)))))

	(define (linearize x)
	(cond ((null? x) '())

	var pi = agm(3);
	console.log(pi);

	function agm(n) {
	var a = 1,
	b = 1 / Math.sqrt(2),
	t = 1 / 4,
	p = 1,
	an;
	for (var i = 0; i < n; i++) {

	Return-to-Address
	X-PHP-Originating-Script
	X-Authentication-Warning
	SPF v=spf1 include:_spf.google.com ~all

	#include <bits/stdc++.h>

	#define dump(x) cerr << #x << "=" << (x) << endl
	#define FOR(i, a, b) for(int i = int(a); i < int(b); ++i)
	#define rep(i, n) FOR(i, 0, n)
	#define all(p) (p).begin(), (p).end()
	#define rall(p) (p).rbegin(), (p).rend()
	#define MP make_pair
	#define PB push_back

Koki Yasuda orleika

How to make x.509 self-signed certificate

Git ssh key

Make ssh key

Register ssh key