Cryptology ePrint Archive: Report 2014/034

Authenticated Encryption with SPECK

Chase Manny

Abstract: In this paper, we provide performance measures for software implementations of the NSA-designed Speck128 block cipher together with various existing authenticated encryption modes. We investigated Speck128 using GCM, CCM, EAX, OCB3, COPA, and PAEAD-1, and we briefly discuss performance advantages and disadvantages of each mode. Our results indicate that Speck128 is capable of performing extremely fast authenticated encryption, as fast as 3.4 cycles/byte on a modern x86-based 64-bit processor.

Category / Keywords: secret-key cryptography / Authenticated Encryption, SPECK

Date: received 11 Jan 2014

Contact author: cmanny at terpmail umd edu

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Version: 20140112:132902 (All versions of this report)

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