Pretty Good Privacy (PGP) and the open source implementation GNU Privacy Guard (GPG) are encryption solutions following the OpenPGP standard. Even if GPG has been
Tag: cryptography
Practical bruteforce of AES-1024 military grade encryption
I recently presented work on the analysis of a file encryption solution that claimed to implement “AES-1024 military grade encryption“. Spoiler alert: I did not
Implementing a ZK-focused authenticated-encryption scheme
In the last few years, several practitioners have proposed zk-focused cryptographic constructions such as hashing and encryption primitives that operate on binary and prime fields
Web3 and Security: It’s Time To Grow Up
Hello Web3/blockchain world, great job. You got people to take you seriously, trusting your projects and investing their money. You’ve sold people on your innovations,
Quick Analysis of the Wormhole attack
Summary An anonymous attacker used a verification problem in the Wormhole program and 80000 wETH were pulled out of the Wormhole contract. The problem was
Practical attacks against attribute-based encryption
This week at Black Hat Europe 2021, Marloes Venema (Radboud University Nijmegen) and me, presented our work on attacking attribute-based encryption implementations: https://www.blackhat.com/eu-21/briefings/schedule/#practical-attacks-against-attribute-based-encryption-25058. Attribute-based encryption
Kudelski Security Research 