stokito

# You can use smaller curve prime256v1
openssl req -x509 -new -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 -days 3650 -noenc -keyout example.com.privkey.p8 -out example.com.cer -subj "/CN=example.com" -addext "subjectAltName=DNS:example.com,DNS:*.example.com"

Atinux

const waitFor = (ms) => new Promise(r => setTimeout(r, ms))
const asyncForEach = async (array, callback) => {
  for (let index = 0; index < array.length; index++) {
    await callback(array[index], index, array)
  }
}

const start = async () => {
  await asyncForEach([1, 2, 3], async (num) => {
    await waitFor(50)

max-mapper

# RS256
# private key
openssl genrsa -out rs256-4096-private.rsa 4096
# public key
openssl rsa -in rs256-4096-private.rsa -pubout > rs256-4096-public.pem

# ES512
# private key
openssl ecparam -genkey -name secp521r1 -noout -out ecdsa-p521-private.pem
# public key

tsaarni

*** RSA

# Generate self-signed certificate with RSA 4096 key-pair
openssl req -x509 -nodes -days 3650 -newkey rsa:4096 -keyout rsakey.pem -out rsacert.pem

# print private and public key
openssl rsa -in rsakey.pem -text -noout

# print certificate
openssl x509 -in rsacert.pem -text -noout

remarkablemark

How to add an image to a gist

1. Create or find a gist that you own.
2. Clone your gist (replace <hash> with your gist's hash):

   # with ssh
   git clone git@gist.github.com:<hash>.git mygist
   
   # with https

git clone https://gist.github.com/.git mygist

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

dkalamari

<Window x:Class="App.WPF.Windows.DocumentDetailsWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" WindowStartupLocation="CenterScreen"
        xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
        Title="Document Details" Height="700" Width="700">
  <i:Interaction.Triggers>
    <i:EventTrigger EventName="Closing">
        <i:InvokeCommandAction  Command="{Binding CloseCommand}" />
    </i:EventTrigger>
  </i:Interaction.Triggers>