Collected research

Clock Around the Clock: Time-Based Device Fingerprinting

Iskander Sanchez-Rola, Igor Santos and Davide Balzarotti · eurecom.edu

Timing how long ordinary API functions take to run reveals a device clock crystal variation, giving a hardware fingerprint. The CryptoFP tool measures HTML5 Crypto API calls from JavaScript, letting a site re-identify a visitor and tell apart machines with identical hardware and software, with nothing stored on the client.

Record

Researcher

Iskander Sanchez-Rola, Igor Santos and Davide Balzarotti

Published by

eurecom.edu

Format

Whitepaper

Topic

Other

In the archive

• Collected in the 2018 research round

Tags

• timing-attack
• side-channel
• info-leak
• javascript
• measurement-study

This page is the archive's own catalogue record. The research is the work of Iskander Sanchez-Rola, Igor Santos and Davide Balzarotti, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on 14 August 2026.