Oluka Denis OlukaDenis

Android App Signing Keystore Generator

A robust, production-ready Bash script to automate the secure generation of Android App Signing Keystores using Java's keytool utility. This script complies with modern Android security standards, including the PKCS12 keystore format, matching store/key passwords, and Google Play's 25+ year validity recommendation.

Key Features

Modern Standards: Generates standard standard-compliant PKCS12 format keystores.
Identical Passwords: Uses a single password for both the store and the key to prevent PKCS12 keytool issues.
Extended Validity: Sets key validity to 20,000 days (approximately 54 years), meeting and exceeding Google Play's minimum 25-year mandate.
Descriptive CLI Flags: Uses expressive, self-documenting command-line arguments instead of cryptic single-letter options.


	import android.annotation.TargetApi
	import android.content.Context
	import android.content.ContextWrapper
	import android.content.pm.PackageManager
	import android.util.Base64.*
	import timber.log.Timber
	import java.nio.charset.StandardCharsets
	import java.security.MessageDigest
	import java.security.NoSuchAlgorithmException

	.list-item::after {
	background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill="none" stroke="black" stroke-width="4" stroke-miterlimit="10" d="M4.75 1.5l6.5 6.5-6.5 6.5"/></svg>');
	background-size: 8px 8px;
	background-repeat: no-repeat;
	content: '';
	display: inline-block;
	height: 8px;
	margin-left: 4px;
	width: 16px;
	}

	.list-item:hover {
	background-color: aliceblue;
	}

	.list a:link{
	color: black;
	}

	.list a:active{
	color: green;

	<div class="container">
	<h1>Top 5 Languages </h1>
	<p>In the last year, developers collaborated in more than 370 primary languages on GitHub. The following are the the top five languages with more contributions on GitHub</p>
	<div class="list">
	<ul>
	<li class="list-item"> <a href="#"> Javascript </a> </li>
	<li class="list-item"> <a href="#"> Python </a> </li>
	<li class="list-item"> <a href="#"> Java </a> </li>
	<li class="list-item"> <a href="#"> PHP </a> </li>
	<li class="list-item"> <a href="#"> C# </a> </li>

	function palindromeCheck(){
	let word = prompt("Write a word:")
	let collection = []
	//adding letters from word to collection
	for(let i = 0; i < word.length; i++ ){
	collection.push(word[i]);
	}

	this.front = function(){
	return collection[0]

	function stairCase(n){
	let arr = Array(n-1).fill(' ')

	for (let i = n-1; i >= 0; i--) {
	arr[i] = '#';
	console.log(arr.join(''));
	}
	}

	stairCase(6)

	.list-item:nth-of-type(odd){
	background-color: slategrey;
	}

	.list-item:nth-child(2n-1){
	background-color: slategrey;
	}

	selector:pseudo-class {
	property:value;
	}