illustration of lock, four asterisks and a shield with a fingerprint on it on a green gradient background

Security, privacy, & cryptography

Developing technologies that protect data, preserve privacy, and build trustworthy computing systems.

Diagram showing the process of verifying cryptographic code. An algorithm from a standard is converted into a formal specification, while Rust code is converted into a code model. The specification and code model are then compared through proof and verification steps.

Verifying Rust cryptography in SymCrypt, from standards to code

Three white line-style icons centered on a textured blue-to-green gradient background: a shield, a checkmark inside a circle, and an ID card with a user silhouette—representing security, verification, and digital identity.

Vega: Zero-knowledge proofs for digital identity in the age of AI

Project Ire | | three white line icons on an abstract purple background | greater than / less than icon, search icon, shield icon

Ire identifies another LOTUSLITE specimen

Social Reasoning Bench | four icons on a blue to green gradient | person icon, chat bubble icon, chart icon, checklist icon

SocialReasoning-Bench: Measuring whether AI agents act in users’ best interests

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Published Date

Video

Working at Microsoft Research Cambridge

October 25, 2019 | Chris Bishop, Abigail Sellen, Ant Rowstron, Aditya Nori, Haiyan Zhang, Manuel Costa, Andrew Fitzgibbon

Here at Microsoft Research in Cambridge, we truly aspire to transform the world through deep research. Watch the video to find out more about our culture, ambition and research themes. Find out more at: https://aka.ms/MSRCambridge

Aditya Nori working on Healthcare Intelligence at Microsoft Research Cambridge

0:05:06

Publication

Oblivious Differential Privacy Poster

October 2019

NeurIPS Poster | October 2019

https://arxiv.org/pdf/1807.00736.pdf

Project

Tool

HACL*

A High-Assurance Cryptographic Library (HACL*), a formally verified cryptographic library written in F*. This repository contains verified code for a library of modern cryptographic algorithms, including Curve25519, Ed25519, AES-GCM, Chacha20, Poly1305, SHA-2, SHA-3, HMAC, and…

GitHub Publication

Podcast

News from the front in the post-quantum crypto wars with Dr. Craig Costello

October 16, 2019

Dr. Craig Costello is in the business of safeguarding your secrets. And he uses math to do it. A researcher in the Security and Cryptography group at Microsoft Research, Dr. Costello is among a formidable…

Image of Dr. Craig Costello for the Microsoft Research Podcast

Publication

Spectral embedding of weighted graphs

Ian Gallagher, Andrew Jones, Anna Bertiger, Carey Priebe, Patrick Rubin-Delanchy

arXiv: Machine Learning | October 2019

Publication

VAULT: Verifiable Audits Using Limited Transparency

Josh Benaloh, Philip B. Stark, Vanessa Teague

E-Vote-ID | October 2019

Publication

TLA+ Model Checking Made Symbolic

Igor Konnov, Thanh-Hai Tran

October 2019

Publication

BioID: A Privacy-Friendly Identity Document

Betül Durak, Fatih Balli, Serge Vaudenay

STM | September 2019

Publication

Provably Robust Deep Learning via Adversarially Trained Smoothed Classifiers

Hadi Salman, Greg Yang, Jerry Li, Pengchuan Zhang, Huan Zhang, Ilya Razenshteyn, Sébastien Bubeck

33rd Conference on Neural Information Processing Systems (NeurIPS 2019) | September 2019

Microsoft Research Blog

Project Everest: Advancing the science of program proof

September 5, 2019 | Nikhil Swamy

Project Everest is a multiyear collaborative effort focused on building a verified, secure communications stack designed to improve the security of HTTPS, a key internet safeguard. This post—about the proving methodology and verification tools of…

Security, privacy, & cryptography

Highlights