The IIS Chip Gallery

Zweifel (2015)

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by

Philippe Degen, Moritz Schneider, Patrick Oschatz, Stefan Rietmann, Beat Muheim, Michael Muehlberghuber

Main Details

Application	Cryptography
Technology	65
Manufacturer	UMC
Type	Semester Thesis
Package	QFN56
Dimensions	2626μm x 1252μm
Gates	10
Voltage	1.2 V
Power	999 mW @ 1.2 V, 325 MHz
Clock	1 MHz

Description

This chip implements some of the authenticated encryption with associated data (AEAD) algorithms that were submitted as part of the Caesar Candidates, similar to Pony. The algorithms implemented are:

• Ascon
• Minalpher
• Joltik
• SCREAM
All the candidates have been designed to reach a throughput of 100 Gbps while consuming as less area as possible. To test the individual implementation an On-Chip RAM can be fed with random test vectors. Alternatively a LFSR gives the possibility to rapidly generate stimulis (e.g. for power measurement).

Zweifel is a popular Swiss company that is famous for its potato chips. The name of the chip is a pun on the obvious relation between technical chips and the edible chips. On the other hand it plays with the trustworthiness of cryptography and the need of it in general as "Zweifel" is a German word that translates to "doubt".

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