Kelly Adams adamskt

Modernizing a codebase for C# 9

There are lots of cases that you can improve. The examples use nullable reference types, but only the WhenNotNull example requires it.

Use the property pattern to replace `IsNullorEmpty`

Consider adopting the new property pattern, wherever you use IsNullOrEmpty.

string? hello = "hello world";

Installing Cool-Retro-Term on Windows10

First of all, this document is just a recompilation of different resources that already existed on the web previously that I personally tested some ones did work and other not. I liked the idea to make a full guide from start to end so all of you could also enjoy playing with cool-retro-term on windows 10. Personally I installed it on a windows 10 pro version. Fingers crossed!

Login.gov encryption is badly designed

Disclaimer: everything that follows is a personal opinion - not an assertion of fact.

Regulatory/Compliance flaws

NIST has created Federal Information Processing Standard (FIPS) 140-2: Security Requirements for Cryptographic Modules. FIPS requirements are mandatory for Federal Government agencies, as prescribed by FISMA law. FIPS-140-2 Annex D covers Approved Key Establishment Techniques. The only FIPS-approved password-based key derivation algorithm is PBKDF2 (NIST SP800-132). Login.gov uses scrypt, which is not FIPS-approved. The FIPS-approved key-derivation algorithms are mostly covered by NIST SP800-108. Login.gov uses several custom approaches for key derivation, none of which are FIPS-approved.

	PASSWORD1 # Replace literal string 'PASSWORD1' with '*REMOVED*' (default)
	PASSWORD2==>examplePass # replace with 'examplePass' instead
	PASSWORD3==> # replace with the empty string
	regex:password=\w+==>password= # Replace, using a regex
	regex:\r(\n)==>$1 # Replace Windows newlines with Unix newlines

	public static class SelectListExtensionMethods
	{
	/// <summary>
	/// The SelectListItem to use by default as the placeholder for select lists generated by these extension methods when the user needs to pick a value.
	/// </summary>
	public static readonly SelectListItem DefaultEmptySelectListItem = new SelectListItem() { Text = "-- Pick One --", Value = string.Empty };
	/// <summary>
	/// The SelectListItem to use by default as the placeholder for select lists generated by these extension methods when not picking a value is the same as using as of the possible choices (meant for filtering typically)
	/// </summary>
	public static readonly SelectListItem AnySelectListItem = new SelectListItem() { Text = "-- Any --", Value = string.Empty };

	<!DOCTYPE html>
	<html>
	<head>
	<script data-main="usage" src="http://requirejs.org/docs/release/1.0.8/comments/require.js"></script>
	</head>
	<body>
	<p>Check your JavaScript console for output!</p>
	</body>
	</head>

	#region Using Directives

	using System.Threading;

	#endregion

	namespace ObjectExtensions.Tests
	{
	public class Person
	{