This document specifies the crypto suite for SIMON for the ISO/IEC 18000 air interface standards for radio frequency identification (RFID) devices.
SIMON is a symmetric block cipher that is parameterized in both its block length and key length. The block/key length options supported in this crypto suite (in bits) are 64/96, 96/96, 64/128, 128/128 and 128/256.
In this document, a Tag and an Interrogator can support one, a subset or all of the specified options, clearly stating what is supported.
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.