An Approach for Symmetric Encryption Against Side Channel Attacks in Provable Security
- Cite this paper as:
- Li W., Gu D. (2007) An Approach for Symmetric Encryption Against Side Channel Attacks in Provable Security. In: Susilo W., Liu J.K., Mu Y. (eds) Provable Security. ProvSec 2007. Lecture Notes in Computer Science, vol 4784. Springer, Berlin, Heidelberg
This paper defines perfect security against side channel attacks for a cryptosystem implementation, and discusses the implication of secure notions for a cryptosystem in provable security. Then we give some security notions for symmetric encryption against side channel attacks, UB-SCA (unbreakability in side channel attacks) and IND-CPA-SCA (indistinguishability of chosen plaintext attacks and side channel attacks). On the basis of these definitions, we propose and prove that IND-CPA + UB-SCA \(\Rightarrow\) IND-CPA-SCA by reduction, and IND-CPA-SCA is stronger than IND-CPA or UB-SCA.
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