SIDE CHANNEL PROTECTION FOR SHA3 CRYPTOGRAPHIC FUNCTIONS

SIDE CHANNEL PROTECTION FOR SHA3 CRYPTOGRAPHIC FUNCTIONS

In one example an apparatus comprises an input state register, and a first round secure hash algorithm (SHA) datapath circuit communicatively coupled to the input state register and a second round secure hash algorithm (SHA) datapath circuit communicatively coupled to the first round secure hash dat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Ghosh, Santosh, Dinu, Dumitru-Daniel, Sastry, Manoj, Friel, Joseph, Varna, Avinash L
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:In one example an apparatus comprises an input state register, and a first round secure hash algorithm (SHA) datapath circuit communicatively coupled to the input state register and a second round secure hash algorithm (SHA) datapath circuit communicatively coupled to the first round secure hash datapath circuit, the first round secure has algorithm (SHA) datapath circuit and the second round secure hash algorithm (SHA) datapath circuit each comprising a first section to perform a θ step of a SHA calculation, a second section to perform a ρ step calculation, a third section to perform a π step of the SHA calculation, a fourth section to perform a χ step of the SHA calculation, and a fifth section to perform a ι step of the SHA calculation.