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ICC
2009
IEEE

Cryptanalysis of Substitution Cipher Chaining Mode (SCC)

13 years 10 months ago
Cryptanalysis of Substitution Cipher Chaining Mode (SCC)
In this paper, we present an enhanced cryptanalysis of the Substitution Cipher Chaining mode (SCC) [1]. In [2], SCC-128 (SCC which uses AES with 128-bit key) was broken using 5 attacks, where the authors used an active attack model (where the attacker can force the disk encryption application to re-encrypt a sector for her), the complexity of these attacks are at most 240 cipher executions. In this paper, we enhance the main attack on SCC-128, this enhancement decrease the complexity of SCC-128 attacks to be at most 214 cipher executions. We also cryptanalze SCC-128 in a less restrictive attack model, our attacks are upper bounded with 240 cipher executions.
Mohamed Abo El-Fotouh, Klaus Diepold
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICC
Authors Mohamed Abo El-Fotouh, Klaus Diepold
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