Boxcryptor is a software developed by Secomba GmbH which focuses on protecting files stored on external cloud providers by over-encrypting the files and even
Tag: cybersecurity
Audit of AMIS’ Hierarchical Threshold Signature Scheme
AMIS implemented a hierarchical variant of threshold signatures, using different levels/ranks in its distributed key generation (DKG) and signing logic, based on a previous research paper.
An Introduction to Oblivious RAM (ORAM)
In this article we are going to have a look at a special kind of privacy-preserving cryptographic scheme: ORAMs. The acronym ORAM stands for Oblivious
5 Common CFP Submission Mistakes for Security Conferences
Throughout my years on the review board for Black Hat, I’ve seen quite a few mistakes in submissions. Many of these mistakes are ones I’ve
Differential privacy: a comparison of libraries
Note that this article is a hands-on, applied, comparison and does not try to explain all the details of differential privacy. For more background information
FIDO2 Deep Dive: Attestations, Trust model and Security
Update 2020-02-14: As pointed out by a reader (thank you!), attestations do not protect against man-in-the-middle attacks where an attacker owns a genuine authenticator of
