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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta content="width=device-width, initial-scale=1" name="viewport">
<title>Alec Li</title>
<link href="favicon.ico" rel="icon" />
<!-- Bootstrap -->
<link crossorigin="anonymous" href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css"
integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" rel="stylesheet">
<script crossorigin="anonymous" integrity="sha384-gtEjrD/SeCtmISkJkNUaaKMoLD0//ElJ19smozuHV6z3Iehds+3Ulb9Bn9Plx0x4"
src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.bundle.min.js"></script>
<!-- Styles -->
<link href="css/styles.css" rel="stylesheet" />
<!-- Fonts -->
<link href="https://fonts.gstatic.com" rel="preconnect">
<link href="https://fonts.googleapis.com/css2?family=Open+Sans&family=Source+Sans+Pro&display=swap" rel="stylesheet">
<!-- Feature detection -->
<script src="js/modernizr.js"></script>
<!-- Handle fallback with browsers that don't support webp -->
<script src="js/convert_webp.js"></script>
<!-- Masonry JS -->
<script async src="https://unpkg.com/masonry-layout@4/dist/masonry.pkgd.min.js"></script>
<!-- Google tag for site analytics (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-W6YVCZH4SR"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-W6YVCZH4SR');
</script>
</head>
<body>
<nav class="navbar navbar-expand-sm navbar-dark bg-dark sticky-top">
<div class="container-sm container-scale">
<a class="navbar-brand">
<img class="nav-icon" alt="Phi" data-fallback-filetype="png" draggable="false" src="assets/img/Phi-icon.webp" />
<span class="nav-text">Alec Li</span>
</a>
<button class="navbar-toggler" aria-controls="navbar-right" aria-expanded="false" aria-label="Toggle navigation"
data-bs-target="#navbar-right" data-bs-toggle="collapse" type="button">
<span class="navbar-toggler-icon"></span>
</button>
<div id="navbar-right" class="collapse navbar-collapse ms-auto">
<ul class="navbar-nav ms-auto mb-0 mb-sm-2">
<li class="nav-item">
<a class="nav-link active">Home</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" aria-expanded="false" href="coursework" role="button">
Coursework
</a>
<ul class="dropdown-menu dropdown-menu-dark">
<li><a class="dropdown-item" href="coursework/latex.html">LaTeX</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link" href="teaching">Teaching</a>
</li>
</ul>
</div>
</div>
</nav>
<main class="container-sm container-scale">
<div id="intro-div" class="container-fluid flex-row align-items-center mx-auto justify-content-center">
<div id="intro-left">
<img id="img-headshot" class="d-block mx-auto" alt="Alec Li" data-fallback-filetype="jpg"
src="assets/img/alec-li-sather-cropped.webp" />
<div id="intro-links">
<a class="text-decoration-none" href="https://www.linkedin.com/in/-alecli" target="_blank">
<img class="intro-link" alt="LinkedIn Profile" aria-label="LinkedIn Profile Link"
data-fallback-filetype="png" src="assets/img/LI-In-Bug.webp" title="LinkedIn Profile" />
</a>
<a class="text-decoration-none" href="https://github.com/smartspot2" target="_blank">
<img class="intro-link" alt="GitHub Profile" aria-label="GitHub Profile Link" data-fallback-filetype="png"
src="assets/img/GitHub-Mark-32px.webp" title="GitHub Profile" />
</a>
<a id="intro-email-link" class="text-decoration-none">
<img class="intro-link" alt="Email Address" aria-label="Copy Personal Email Address"
src="assets/img/envelope.svg" title="Personal Email" />
</a>
</div>
</div>
<div id="intro-right" class="container-fluid">
<h2>Hi!</h2>
<p>
My name is Alec Li and I'm a software engineer at Meta in Menlo Park,
having graduated from UC Berkeley with an MS in EECS in 2025,
and a BA in Computer Science and Applied Mathematics in 2024.
</p>
<p>
I also enjoy composing music, playing tetris, swimming, and tackling puzzles I find on the internet!
</p>
</div>
</div>
<div class="section-spacing"></div>
<h3>Research</h3>
<div class="research-cards">
<div class="card">
<div class="card-header d-flex flex-column">
<div class="d-flex flex-row justify-content-between">
<a class="research-link" href="https://www2.eecs.berkeley.edu/Pubs/TechRpts/2025/EECS-2025-61.html"
target="_blank">
Enforcing Least Privilege Cross-Cloud Resource Access for Cloud Orchestrators
</a>
<p class="research-year">2025</p>
</div>
<p>
<b>Alec Li</b>,
Samyu Yagati,
Raluca Popa
</p>
</div>
<div class="card-body research-body">
<img class="research-img" alt="Skydentity Logo" src="assets/img/crosscloud-diagram.jpg" />
<div class="research-abstract">
<p>
As cloud computing systems evolve over time, there has been an increased dependency on systems that span
across multiple cloud providers, leading to the increased usage of workload orchestrator services, to
assist with the deployment and management of workloads among multiple clouds. However, the workload
orchestrators that exist today all require the end user to disclose their cloud credentials—this means
that an adversary that compromises a workload orchestrator can access resources in the user's cloud.
</p>
<p>
Recently, Skydentity solves one aspect of this security issue, by introducing a system that protects
against orchestrator compromise, ensuring that workload orchestrators never hold any cloud credentials,
and utilizing proxies that enforce fine-grained user-specified authorization policies. However, VMs
created through Skydentity do not have the ability to request resources across clouds, limiting the scope
of workloads that can utilize Skydentity.
</p>
<p>
We introduce an extension of Skydentity that allows for VMs created by workload orchestrators to access
resources across clouds, while maintaining the security guarantees of Skydentity, protecting against
orchestrator compromise. Our prototype introduces an added latency of at most 3% during VM creation, and
has negligible effect on subsequent cross-cloud resource requests.
</p>
</div>
</div>
</div>
<div class="card">
<div class="card-header d-flex flex-column">
<div class="d-flex flex-row justify-content-between">
<a class="research-link" href="https://sky.cs.berkeley.edu/project/skydentity/" target="_blank">
Skydentity: Enforcing Least-Priviledge for Cloud Orchestrators
</a>
<p class="research-year">2025</p>
</div>
<p>
Samyu Yagati,
<b>Alec Li</b>,
Karthik Dharmarajan,
Romil Bhardwaj,
Sam Kumar,
Raluca Popa,
Malte Schwarzkopf,
Ion Stoica
</p>
</div>
<div class="card-body research-body">
<img class="research-img small" alt="Skydentity Logo" src="assets/img/skydentity_logo.png" />
<div class="research-abstract">
<p>
Today’s cloud applications increasingly rely on third-party workload orchestration services that assist
with provisioning of cloud resources. Unfortunately, such services require users to hand over their cloud
credentials. An attacker who compromises a workload orchestrator can therefore access sensitive data and
code in the user’s cloud deployment.
</p>
<p>
Skydentity solves this problem with request permissions, which decouple the permission to manage resources
from the permission to access resources. To do so without cooperation from cloud providers, we implement
Skydentity as a proxy that interposes on workload orchestrator requests to cloud providers, checks them
against user-provided policies, and provides credentials only to authorized requests. Using a design
inspired by capability-oriented authorization, Skydentity restricts the operations a workload orchestrator
can perform to those pre-authorized by a user policy, and always prevents the workload orchestrator from
accessing user credentials.
</p>
<p>
Our prototype of Skydentity supports a range of typical workload orchestration use cases, such as job
management, data management, and analytics, and imposes modest overheads. Added cost is 1.75 cents or less
for a typical workload, and latency overheads are at most 3% for VM-based jobs and 20% for storage jobs on
clouds that support scoped tokens.
</p>
</div>
</div>
</div>
</div>
<div class="section-spacing"></div>
<h3>Projects</h3>
<div id="projects" data-masonry='{"itemSelector": ".project-card"}'>
<div class="card project-card">
<div class="card-header d-flex flex-row align-items-center">
<span class="project-card-title">
<b>Ed API</b>
</span>
<div class="card-links">
<a class="pypi-link" href="https://pypi.org/project/edapi" target="_blank">
<img class="pypi-img" alt="Github" aria-label="EdStem API PyPI Link" src="assets/img/pypi.svg">
</a>
<a class="github-link" href="https://github.com/smartspot2/edapi" target="_blank">
<img class="github-img" alt="Github" aria-label="EdStem API GitHub Link" data-fallback-filetype="png"
src="assets/img/GitHub-Mark-32px.webp">
</a>
</div>
</div>
<div class="card-body">
An (unofficial) integration of the Ed API with Python. Various API endpoints were reverse engineered and
documented, supporting a wide variety of actions.
</div>
</div>
<div class="card project-card">
<div class="card-header d-flex flex-row align-items-center">
<a class="text-decoration-none project-card-title" href="https://smartspot2.github.io/canvas-grade-calculator"
target="_blank">
<b>Canvas Grade Calculator</b>
</a>
<div class="card-links">
<a class="github-link" href="https://github.com/smartspot2/canvas-grade-calculator" target="_blank">
<img class="github-img" alt="Github" aria-label="Canvas Grade Calculator GitHub Link"
data-fallback-filetype="png" src="assets/img/GitHub-Mark-32px.webp">
</a>
</div>
</div>
<img class="card-img-top project-img" alt="Canvas Grade Calculator"
aria-label="Example of Canvas Grade Calculator use" data-fallback-filetype="jpg"
src="assets/img/CanvasGradeCalculator.webp" />
<div class="card-body">
A website built with Angular and Typescript to help students
easily manage, calculate, and predict grades in classes that use Canvas LMS.
Includes a text parser to convert raw pasted webpage text into Angular components,
utilizing local browser storage to persist parsed data.
Grade distributions for assignments are also illustrated in responsive box plots with d3.js.
</div>
</div>
<div class="card project-card">
<div class="card-header d-flex flex-row align-items-center">
<a class="text-decoration-none project-card-title" href="https://smartspot2.github.io/geo10-map-quiz"
target="_blank">
<b>GEOG10 Map Quizzes</b>
</a>
<div class="card-links">
<a class="github-link" href="https://github.com/smartspot2/geo10-map-quiz" target="_blank">
<img class="github-img" alt="Github" aria-label="GEOG10 Map Quiz GitHub Link" data-fallback-filetype="png"
src="assets/img/GitHub-Mark-32px.webp">
</a>
</div>
</div>
<img class="card-img-top project-img" alt="GEOG10 Map Quiz" aria-label="Example of GEOG10 Map Quiz use"
data-fallback-filetype="jpg" src="assets/img/Geo10MapQuiz.webp" />
<div class="card-body">
A website built in vanilla HTML and JS, with manually edited SVG maps
to help students in Berkeley's GEOG10 course with map quizzes of all continents and the world map.
Utilizes JavaScript to handle timers and quiz functionality,
including the scrollable and resizable map interface.
</div>
</div>
<div class="card project-card">
<div class="card-header d-flex flex-row align-items-center">
<span class="project-card-title">
<b>Sorting Visualizer</b>
</span>
<div class="card-links">
<a class="github-link" href="https://github.com/smartspot2/sort-visualization" target="_blank">
<img class="github-img" alt="Github" aria-label="Sorting Visualizer Github Link"
data-fallback-filetype="png" src="assets/img/GitHub-Mark-32px.webp">
</a>
</div>
</div>
<div id="sorting-visualizer-div" class="img-crop freezeframe">
<img class="card-img-top project-img freezeframe-overlay" alt="Sorting Visualizer"
aria-label="Sorting Visualizer Example" data-fallback-filetype="gif"
src="assets/img/RadixSortLSD_preview.webp" />
<img id="sorting-visualizer" class="card-img-top project-img freezeframe-gif" alt="Sorting Visualizer"
data-fallback-filetype="gif" src="assets/img/RadixSortLSD.webp" />
</div>
<div class="card-body">
A Processing 3 and JavaFX applet for visualizing 20+ different kinds of sorts.
All sorts are animated and annotated with highlights and short descriptions at each step.
Also includes documentation for each sort, describing the algorithm and time/space complexities.
</div>
</div>
<div class="card project-card">
<div class="card-header d-flex flex-row align-items-center">
<a class="text-decoration-none project-card-title" href="https://smartspot2.github.io/tetris-ai"
target="_blank">
<b>Tetris AI</b>
</a>
<div class="card-links">
<a class="github-link" href="https://github.com/smartspot2/tetris-ai" target="_blank">
<img class="github-img" alt="Github" aria-label="Tetris AI GitHub Link" data-fallback-filetype="png"
src="assets/img/GitHub-Mark-32px.webp">
</a>
</div>
</div>
<img class="card-img-top project-img" alt="Tetris AI" data-fallback-filetype="jpg"
src="assets/img/TetrisAI.webp" />
<div class="card-body">
A web app built with p5.js, simulating the traditional game of Tetris.
Includes a fully configurable AI using a fitness score
composed of various statistics like
line clears, board height, number of holes, etc.
</div>
</div>
</div>
</main>
<footer class="footer bg-light">
<div class="container-sm container-scale">
Copyright © 2025 Alec Li
</div>
</footer>
<!-- Handle gif freezing, email copying -->
<script src="js/utils.js"></script>
</body>
</html>