Threshold implementations of small S-boxes
نویسندگان
چکیده
منابع مشابه
On 3-Share Threshold Implementations for 4-Bit S-boxes
One of the most promising lightweight hardware countermeasures against SCA attacks is the so-called Threshold Implementation (TI) [12] countermeasure. In this work we discuss issues towards its applicability and introduce solutions to boost its implementation efficiency. In particular, our contribution is three-fold: first we introduce two methodologies to efficiently implement 3-share TI to a ...
متن کاملThreshold Implementations of All 3 ×3 and 4 ×4 S-Boxes
Side-channel attacks have proven many hardware implementations of cryptographic algorithms to be vulnerable. A recently proposed masking method, based on secret sharing and multi-party computation methods, introduces a set of sufficient requirements for implementations to be provably resistant against first-order DPA with minimal assumptions on the hardware. The original paper doesn’t describe ...
متن کاملEnabling 3-Share Threshold Implementations for all 4-Bit S-Boxes
Threshold Implementation (TI) is an elegant and promising lightweight countermeasure for hardware implementations to resist first order Differential Power Analysis (DPA) in the presence of glitches. Unfortunately, in its most efficient version with only three shares, it can only be applied to 50% of all 4-bit S-boxes so far. In this paper, we introduce a new approach, called factorization, that...
متن کاملThreshold Implementations
Embedded devices are used pervasively in a wide range of applications some of which require cryptographic algorithms in order to provide security. Today’s standardized algorithms are secure in the black-box model where an adversary has access to several inputs and/or outputs of the algorithm. However, sensitive information, such as the secret key used in the algorithm, can be derived from the p...
متن کاملHigher-Order Threshold Implementations
Higher-order differential power analysis attacks are a serious threat for cryptographic hardware implementations. In particular, glitches in the circuit make it hard to protect the implementation with masking. The existing higher-order masking countermeasures that guarantee security in the presence of glitches use multi-party computation techniques and require a lot of resources in terms of cir...
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ژورنال
عنوان ژورنال: Cryptography and Communications
سال: 2014
ISSN: 1936-2447,1936-2455
DOI: 10.1007/s12095-014-0104-7