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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Cryptography for Developers</title>
<!-- START: our font: Nunito -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,200..1000;1,200..1000&display=swap"
rel="stylesheet">
<!-- END: our font: Nunito -->
<link rel="stylesheet" href="styles/home.css">
</head>
<body>
<nav id="navbar" class="center-container">
<div id="nav-links">
<a style="padding: 0.5rem;" class="underline-style" target="_blank"
href="https://github.com/Cryptography-for-Devs/Cryptography-for-Devs.github.io">
<img style="vertical-align: middle;" src="landing-assets/github-svgrepo-com.svg" width="35px"
height="35px" alt="gitHub logo">
<span style="margin-left: 0.4rem;">we are on GitHub!</span>
</a>
</div>
</nav>
<main id="landing-hero" class="center-container">
<div class="heading-and-para">
<h1>
Cryptography
for
Web Developers.
</h1>
<p>
Learn the cryptography concepts needed to build a secure web application.
<br><br>
Full course runtime: 2 to 3 hours.
</p>
</div>
<div class="img-div" style="text-align: center;">
<img src="8-rsa/public-private.png" alt="our hero image">
</div>
<a href="0-before-we-start" class="primary-btn" style="margin-top: 4rem;">
<span>
<img style="vertical-align: bottom;" width="35px" height="35px"
src="landing-assets/cursor-arrow-rays.svg" alt="Mouse cursor svg illustration">
<span class="btn--main-text">
Get started, it's free forever.
</span>
</span>
<br>
<span class="btn--sub-text">No signups required.</span>
</a>
</main>
<section id="past-contributions-container" style="padding-top: 2rem; padding-bottom: 2rem;">
<div id="past-contributions" class="center-container" style="text-align: center;">
<p>
Made by the <a class="light-bg" href="https://github.com/vkweb" target="_blank">past volunteer</a>
of:
</p>
<div id="logos">
<a target="_blank" href="https://developer.mozilla.org">
<img src="landing-assets/mdn-logo.svg" alt="MDN Web Docs logo">
</a>
<a target="_blank" href="https://www.freecodecamp.org">
<img style="max-width: 200px;" src="landing-assets/fcc-logo.svg" alt="freeCodeCamp.org logo">
</a>
<a target="_blank" href="https://learningequality.org">
<img src="landing-assets/le-logo.svg" alt="LearningEquality.org logo">
</a>
</div>
</div>
</section>
<section id="reviews-section-container">
<div class="heading-and-para center-container">
<h2>
Love <img style="vertical-align: middle;" width="30px" height="30px" src="landing-assets/love-heart.svg"
alt="a heart in gamified form"> received from the
Community.
</h2>
<p>We have received some praises from the greatest of people out there 🥳!</p>
</div>
<div id="reviews-section" class="center-container">
<div class="review">
<div class="person">
<img src="landing-assets/cassidy.jpg" alt="cassidy williams picture">
<div class="name-and-designation">
<p>
<a href="https://x.com/cassidoo" class="underline-style" target="_blank">
<span>Cassidy Williams</span>
</a>
</p>
<p style="margin-top: 0.7rem;">Senior Director of Dev Advocacy</p>
<p>GitHub</p>
</div>
</div>
<div class="their-words">
<img src="landing-assets/double-quotes-cassidy.svg" width="40px" height="40px"
alt="double quotes for feedback">
<p>This is <span class="highlight-text">very cool!</span> Retweeted!</p>
</div>
</div>
<div class="review">
<div class="person">
<img src="landing-assets/kent.jpg" alt="Kent C. Dodds picture">
<div class="name-and-designation">
<p><a href="https://x.com/kentcdodds" class="underline-style" target="_blank"><span>Kent C.
Dodds</span></a></p>
<p style="margin-top: 0.7rem;">Creator of EpicWeb.Dev</p>
<p>ex-PayPal</p>
</div>
</div>
<div class="their-words">
<img src="landing-assets/double-quotes-kent.svg" width="40px" height="40px"
alt="double quotes for feedback">
<p>I looked at it and I'm impressed. <br>
<br>
Looks like a <span class="highlight-text">great resource on a niche topic that more
developers
should understand better.</span>
</p>
</div>
</div>
</div>
<div class="center-container">
<p style="text-align: center; margin-top: 4rem;">-- and --</p>
<p style="text-align: center; margin-top: 3rem;">
"<span class="span-highlight">Amazing course</span>, only the code editor/content split is hard to read
on mobile. [...] <span class="span-highlight">Great work tho,
loved it!</span>"
<br>
<span style="display:inline-block;margin-top: 0.6rem; font-size: 0.9rem;">— feedback from one of the
users.</span>
</p>
<p style="text-align: center; margin-top: 3rem;">-- and --</p>
<p style="text-align: center; margin-top: 3rem;">
<span class="span-highlight">Served 1,000+ visitors!</span>
</p>
</div>
</section>
<section class="center-container">
<div class="heading-and-para">
<h2>
Hand-picked concepts for
<img src="landing-assets/web-svg.svg" width="35px" height="35px" style="vertical-align: middle;"
alt="a web svg">
web developers.
</h2>
</div>
<div id="major-learnings">
<div>
<img src="landing-assets/https-svg.svg" alt="a lock illustration" width="30px" height="30px">
<p>How does <code>HTTPS (TLS)</code> actually works? we build intuitions for the Diffie-Hellman key
exchange
algorithm and the RSA algorithm before we dive into TLS.</p>
</div>
<div>
<img src="landing-assets/key-for-homepage.svg" alt="a key representing public key" width="30px"
height="30px">
<p>The underlying principes of <code>public key cryptography</code>. Every web developer must learn this
because you will for sure generate a public-private key pair some time ;)</p>
</div>
<div>
<img src="landing-assets/github-icon-new.svg" alt="github logo" width="30px" height="30px">
<p>How SSH authentication works when you do <code>git push</code>...? We will see how our knowledge of
RSA
helps us understand SSH authentication with GitHub.</p>
</div>
<div>
<img src="landing-assets/db-only.svg" alt="database illustration" width="30px" height="30px">
<p>In the first module we will cover the concepts that
will help you understand why using PBKDF-2 is necessary for password storage.</p>
</div>
</div>
</section>
<section id="why-container">
<div class="heading-and-para center-container">
<h2>
OK -- but why to care learning these concepts?
</h2>
</div>
<div id="why" class="center-container">
<div id="paras">
<div style="text-align: center;">
<img src="landing-assets/thinking.svg" width="50px" height="50px"
alt="a cloud representing some thought">
</div>
<p>
We web developers make applications on the web. Servers are the
first-class citizen of our world and our users trust us with their data.
</p>
<p>When we don't understand the necessary cryptography concepts then these things happen:</p>
<div style="text-align: center; margin-bottom: 1rem;">
<figure>
<img style="max-width: 100%;" src="landing-assets/xkcd.webp"
alt="XKCD comic illustrating a character thinking to reveal his computer's private key">
<figcaption>NEVER EVER do the above! Image from: <a href="https://xkcd.com/1553"
target="_blank">https://xkcd.com/1553</a></figcaption>
</figure>
</div>
<ul>
<li>We can't keep our cloud servers safe.</li>
<li>We can't participate in security oriented discussions with fellow developers of our team.</li>
<li>We struggle to keep user data protected.</li>
<li>We can't make right security decisions for our web apps.</li>
</ul>
<p>
This course is designed specially for web developers. With this course
you
will <strong>learn all the building blocks necessary to take the right security decisions for your
web
applications on production.</strong>
</p>
</div>
</div>
</section>
<section id="curriculum-top-container">
<div class="heading-and-para center-container">
<h2>
Curriculum
</h2>
</div>
<div id="curriculum" class="center-container">
<div class="module">
<p>
<strong>MODULE 1</strong>
<br><br>
The fundamental building blocks of modern security protocols.
</p>
<ul>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>Symmetric key encryption</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>Challenge: Caesar's cipher</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>Cryptographic hash function</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>Password hashing</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>Rainbow tables and the salt</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>PBKDF-2</span>
</li>
</ul>
</div>
<div class="module" style="margin-top: 4rem;">
<p>
<strong>MODULE 2</strong>
<br><br>
The behind the scenes look at how our communication is encrypted on the web.
</p>
<ul>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>Diffie-Hellman-Merkle key exchange</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>RSA</span>
</li>
<li>
<img width="20px" height="20px" style="vertical-align: middle;"
src="landing-assets/right-arrow-8bit.svg" alt="right arrow">
<span>TLS</span>
</li>
</ul>
</div>
</div>
</section>
<section>
<div id="heading-of-course-maker" class="heading-and-para center-container">
<h2>
<img id="handcraft-svg" width="40px" height="40px" src="landing-assets/undraw_rocket.svg"
alt="a hand drawn rocket illustration">
Meet the course's maker!
</h2>
</div>
<div id="who-is-behind" class="center-container">
<div id="intro">
<p>Hi, I am Vivek Agrawal, known as <a class="underline-style" href="https://github.com/vkweb"
target="_blank"><span>@vkweb</span></a> around
open-source.</p>
<div>
<img src="landing-assets/vk-nice.png" alt="Vivek Agrawal's photo">
</div>
</div>
<hr style="margin-top: 2rem; margin-bottom: 2rem;">
<div id="story">
<p>
Around 5 years back, <a href="https://github.com/freeCodeCamp/CurriculumExpansion/pull/184"
target="_blank" class="underline-style"><span>I helped freeCodeCamp.org in creating a short
course on RSA public key
cryptography</span></a>. That course never went live on their platform.
</p>
<p>Recently, I got some free time. As I was thinking what to work on, I found out -- there are not any
great
resource for developers on cryptography.</p>
<p>
So, I decided to create this free course that I would have loved to take back then!
</p>
<p>
I hope you come out with a proper understanding of the necessary cryptography concepts. And build
secure
web experiences.
</p>
<p>Thank you for visiting this place :)</p>
<p>PS: I post useful content on my Twitter along with my projects. You might enjoy my company there,
follow
me: <a class="underline-style" href="https://twitter.com/vkwebdev"
target="_blank"><span>twitter.com/vkwebdev</span></a>.
</p>
</div>
</div>
</section>
<section class="center-container">
<div style="text-align: center;">
<a href="0-before-we-start" class="primary-btn">
<span>
<img style="vertical-align: bottom;" width="35px" height="35px"
src="landing-assets/cursor-arrow-rays.svg" alt="Mouse cursor svg illustration">
<span class="btn--main-text">
Get started, it's free forever.
</span>
</span>
<br>
<span class="btn--sub-text">No signups required.</span>
</a>
</div>
</section>
</body>
</html>