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Lightweight hash function CHF based on new encryption and sponge structures. (Chinese. English summary) Zbl 1374.68188

Summary: To meet the application requirement for cipher algorithms in the resource-constrained terminal system such as the limited energy supply etc., a lightweight hash function named CHF is designed. CHF adopts the Sponge structure as its iterative structure, and it uses the CLEFIA-128* as its compression function, which adopts a new encryption structure named MS. Test and analysis results show that the software efficiency of CHF is better than that of common lightweight hash functions, and its hardware efficiency is also taken into account. That is, the CHF algorithm fulfills the application requirements for hardware in the resource-constrained system such as radio frequency identification (RFID)and for software in embedded system & monolithic processor. Thus the CHF has wider application. The dependency test and security analysis results show that the CHF algorithm satisfies the security requirements of the lightweight hash function. Thus the security of MS structure is proved from sideway.

MSC:

68P25 Data encryption (aspects in computer science)
94A60 Cryptography
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