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Kudelski Security Research

Kudelski Security Research

The Latest News from Research at Kudelski Security

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Author: Antonio de la Piedra

Multiple CVEs in threshold cryptography implementations

March 23, 2023 Antonio de la Piedra

Introduction io.finnet hired us to perform a code audit of their threshold ECDSA signature implementation called tss-lib based on the paper UC Non-Interactive, Proactive, Threshold

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Introducing ABE Squared: A Framework for Comparing the Efficiency of ABE Schemes

September 19, 2022 Antonio de la Piedra

Authors: Antonio de la Piedra (Kudelski Security Research Team), Marloes Venema (Radboud University Nijmegen), Greg Alpar (Radboud University Nijmegen and Open University of the Netherlands).

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Implementing ZK-focused hash schemes

July 7, 2022 Antonio de la Piedra

In my last post, I described the ZK-oriented Ciminion AE (Dobraunig et al., 2021) scheme and implemented it using the circom2 DSL for writing zkSNARK

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Implementing a ZK-focused authenticated-encryption scheme

May 2, 2022 Antonio de la Piedra

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

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Practical attacks against attribute-based encryption

November 12, 2021 Antonio de la Piedra

Authors: Antonio de la Piedra (Kudelski Security Research Team) and Marloes Venema (Radboud University Nijmegen) This week at Black Hat Europe 2021 we have presented

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