Small Crypto for Small IOT

Document Type Expired Internet-Draft (individual)
Authors Robert Moskowitz  , Liang Xia 
Last updated 2018-05-03 (latest revision 2017-10-30)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo proposes to leverage the Keccak algorithm at a function "width" of b=400 to provide a set of "small" cryptographic functions well suited to the IOT constrained environment. As such, only 128 bit security level is provided here. The full set of NIST approved Keccak derived functions that can work within the b=400 constraint, plus the 3rd round candidate in the CAESAR competition, Ketje, are defined.


Robert Moskowitz (
Liang Xia (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)