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.
Tag: Crypto
CVE-2020-0601: the ChainOfFools/CurveBall attack explained with PoC
On Tuesday the 14th of January 2020, in the frame of their first Patch Tuesday of 2020, Microsoft addressed a critical flaw discovered by the
Forget Homomorphic Encryption, Here Comes Functional Encryption
Have you ever heard of Functional Encryption (FE)? If so, you may be associating it with some sort of homomorphic encryption, which is not wrong,
Audit of Binance TSS-lib
Binance created an open source software library available on Github implementing a threshold ECDSA signature scheme (TSS), and hired Kudelski Security to perform a security
Introducing FumbleChain – A Purposefully Vulnerable Blockchain
Hello everyone, today we are happy to announce FumbleChain, a purposefully vulnerable blockchain implementation. This project has been a labor of love for the Research
Can You Sign A Quantum State?
Spoiler: no, you can’t, unless you also encrypt the quantum state. In this post we are going to look at recent scientific results about the
