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What is Fault Attacks on Deterministic Signatures about?

This document analyzes the security of deterministic ECDSA and EdDSA signature schemes against fault attacks. It shows that by eliminating random numbers, these schemes are vulnerable to new types of fault attacks that allow retrieving the private signature key. Specifically, it demonstrates practical Rowhammer attacks against EdDSA that can flip bits to alter a message after the nonce is generated but before signing. The document also discusses requirements for vulnerability, potential countermeasures, and

Author

Sam Fairire

Language

EN