AEGIS: a fast authenticated encryption algorithm. (English) Zbl 1339.94083
Lange, Tanja (ed.) et al., Selected areas in cryptography – SAC 2013. 20th international conference, Burnaby, BC, Canada, August 14–16, 2013. Revised selected papers. Berlin: Springer (ISBN 978-3-662-43413-0/pbk; 978-3-662-43414-7/ebook). Lecture Notes in Computer Science 8282, 185-201 (2014).
Summary: This paper introduces a dedicated authenticated encryption algorithm AEGIS; AEGIS allows for the protection of associated data which makes it very suitable for protecting network packets. AEGIS-128 uses five AES round functions to process a 16-byte message block (one step); AES-256 uses six AES round functions. The security analysis shows that both algorithms offer a high level of security. On the Intel Sandy Bridge Core i5 processor, the speed of AEGIS is around 0.7 clock cycles/byte (cpb) for 4096-byte messages. This is comparable in speed to the CTR mode (that offers only encryption) and substantially faster than the CCM, GCM and OCB modes.
For the entire collection see [Zbl 1321.94008].
For the entire collection see [Zbl 1321.94008].
