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Optimal Recovery of Secret Keys from Weak Side Channel Traces

Schindler, Werner and Walter, Colin Parker, M. G. (ed.) (2009):
Optimal Recovery of Secret Keys from Weak Side Channel Traces.
In: LNCS, In: Cryptography and Coding - IMA 2009, Springer, pp. 446 - 468, [Conference or Workshop Item]

Abstract

It should be difficult to extract secret keys using weak side channel leakage from embedded crypto-systems which employ standard counter-measures. Here we consider the case of key re-use with randomised exponent recoding. An optimum strategy is presented and proved, but it has the disadvantage of impracticality for realistic key sizes. Developed from the basis of an optimal decision strategy, some modified, computationally feasible versions are studied for effectiveness. This shows how to modify existing algorithms and pick their parameters for the best results.

Item Type: Conference or Workshop Item
Erschienen: 2009
Editors: Parker, M. G.
Creators: Schindler, Werner and Walter, Colin
Title: Optimal Recovery of Secret Keys from Weak Side Channel Traces
Language: German
Abstract:

It should be difficult to extract secret keys using weak side channel leakage from embedded crypto-systems which employ standard counter-measures. Here we consider the case of key re-use with randomised exponent recoding. An optimum strategy is presented and proved, but it has the disadvantage of impracticality for realistic key sizes. Developed from the basis of an optimal decision strategy, some modified, computationally feasible versions are studied for effectiveness. This shows how to modify existing algorithms and pick their parameters for the best results.

Title of Book: Cryptography and Coding - IMA 2009
Series Name: LNCS
Publisher: Springer
Uncontrolled Keywords: Secure Things;Side channel leakage, power analysis, optimal strategy
Divisions: LOEWE
LOEWE > LOEWE-Zentren
LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt
Date Deposited: 30 Dec 2016 20:23
Identification Number: TUD-CS-2009-1833
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