Abstract
In this paper we examine the immunity of ElGamal signature scheme and its variants against fault cryptanalysis. Although such schemes have been already widely adopted, their resistance against fault cryptanalysis has not been verified in detail yet. However, at least some of them are not immune to fault cryptanalysis and can be broken without solving discrete logarithm problem. We will show that the selected signature schemes can be broken in O(nlog2n) steps if single bit-flip errors are inducted during computations. We also present two modifications that can be used to improve security of ElGamal scheme.
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© 2005 Springer-Verlag Berlin Heidelberg
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Biernat, J., Nikodem, M. (2005). Fault Cryptanalysis of ElGamal Signature Scheme. In: Moreno Díaz, R., Pichler, F., Quesada Arencibia, A. (eds) Computer Aided Systems Theory – EUROCAST 2005. EUROCAST 2005. Lecture Notes in Computer Science, vol 3643. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11556985_43
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DOI: https://doi.org/10.1007/11556985_43
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-29002-5
Online ISBN: 978-3-540-31829-3
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