There was considerable attention around Passkeys last year. It was sometimes presented as the password killer technology. This came from the announcements of Apple and
Category: cryptography
The KyberSlash vulnerability and the crystals-go library: A retrospective story
Introduction In this blog post we are going to talk about a security incident which involved an open-source library developed by a student working on
Lattice-free half-half attack on Bitcoin and Ethereum
Public blockchains have a long history of attacks regarding their ECDSA signatures. Since all transactions are publicly available, it makes a perfect experimental field for
Polynonce: A Tale of a Novel ECDSA Attack and Bitcoin Tears
Introduction In this blog post, we tell a tale of how we discovered a novel attack against ECDSA and how we applied it to datasets
Some AES CBC Encryption Myth-busting
Myth-busting us. /ˈmɪθˌbʌs.tɪŋ/ : the act of saying or showing that something generally thought to be true is not, in fact, true, or is different from
Practical fault attacks against SM4
During the Hardwear.io 2022 conference, Nicolas and I presented hardware attacks against the SM4 block cipher. In this post, I’ll give more details about the