Generalization of Auxiliary Input Leakage Model for Public-Key Cryptosystems

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Khoshakhlagh, Hamid Reza | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 46357 (02)
University: Sharif University of Technology
Department: Mathematical Sciences
Advisor(s): Khazaei, Shahram
Abstract:
Side channel attacks, where an attacker learns some physical information about the state of a device, are one of the ways in which cryptographic schemes are broken in practice. leakage resilient ryptography addressed this issue at a higher abstraction level, proposing models capturing such attacks. Auxiliary Input is one of these models. In this thesis, we study public-key encryption schemes in this model of leakage. we also propose a method to consider this leakage continuously (i.e., not just one observation of the adversary). at the end, we consider the leakage from both the secret key owner and the encryptor. This odel captures a wider class of side-channel attacks
Keywords:
Provable Security ; Public Key Cryptography ; Leacage-resilient Cryptography ; Auxiliary-input Model