Lattice Attacks on Digital Signature Schemes

N.A. Howgrave-Graham; N.P. Smart

doi:10.1023/A:1011214926272

Designs, Codes, and Cryptography

Paper

01 Aug 2001

Lattice Attacks on Digital Signature Schemes

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Abstract

We describe a lattice attack on the Digital Signature Algorithm (DSA) when used to sign many messages, mi, under the assumption that a proportion of the bits of each of the associated ephemeral keys, yi, can be recovered by alternative techniques.

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