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Lecture Notes in Computer Science
The recent developments of side channel attacks have lead implementers to use more and more sophisticated countermeasures in critical operations such as modular exponentiation, or scalar multiplication in the elliptic curve setting. In this paper, we propose a new attack against a classical implementation of these operations that only requires two queries to the device. The complexity of this so-called "doubling attack" is much smaller than previously known ones. Furthermore, this approachdoi:10.1007/978-3-540-45238-6_22 fatcat:x7fce7adm5e35mrrdvwyj3ruo4