Conference Publication Details
Mandatory Fields
Amiel, F., Feix, B., Tunstall, M., Whelan, C. and Marnane, W.P.
Lecture Notes in Computer Science 5381, 15th Annual Workshop on Selected Areas in Cryptography (SAC2008)
Distinguishing Multiplication and Squaring Operations
2008
August
Published
1
Scopus: 20 ()
Optional Fields
Side channel attacks, differential power analysis, modular multiplication and exponentiation, RSA, square and multiply algorithm
346
360
Sackville, New Brunswick, Canada
14-AUG-08
15-AUG-08
In this paper we present a new approach to attacking a modular exponentiation and scalar multiplication based by distinguishing multiplications from squaring operations using the instantaneous power consumption. Previous approaches have been able to distinguish these operations based on information of the specific implementation of the embedded algorithm or the relationship between specific plaintexts. The proposed attack exploits the expected Hamming weight of the result of the computed operations. We extrapolate our observations and assess the consequences for elliptic curve cryptosystems when unified formulae for point addition are used.
10.1007/978-3-642-04159-4_22
Grant Details