Kasumi – Knowledge and References

Kasumi

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Smart Grid Technologies

Published in Stuart Borlase, Smart Grids, 2017

In addition to the boost in wireless throughput speeds, 3G technologies provided significant enhanced security capabilities, which enabled utilities to address privacy and security concerns (for instance, GPRS and HSPA allow the implementation of authentication mechanisms). In addition, 3G technologies introduced a newer, stronger, and more robust algorithm named Kasumi that addresses the vulnerabilities associated with earlier generation cryptographic algorithms. These capabilities have and will continue to affect the type of smart grid network elements and the network architecture of future systems.

A novel modified KASUMI block chiper for global system for mobile communications

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Journal Information

Published in International Journal of Computers and Applications, 2021

Raja Muthalagu, Subeen Jain

KASUMI is the modified version of block cipher algorithm MISTY1. It is Fiestel network of 8-rounds which accept the input of 64-bit and produce the output of 64-bit by using 128-bit key for each round. FI, FO and FL are the different functions used by KASUMI. All these functions are completely different and they use different key values for performing their own operations. KI, KO and KL are the keys used for FI, FO and FL function, respectively, for all the 8 rounds. Figure 1 provides Fiestel structure of 8-round KASUMI algorithm [11–16]. In odd number of rounds, FL function will be performed first followed by FO function. But FO function will be performed first followed by FL function in even number of rounds. Brief description of three functions of algorithm is given below along with key-value operations.