CPA on COLM Authenticated Cipher and the Protection Using Domain-Oriented Masking

on the relationship between using discourse markers and the quality of expository and argumentative academic writing of iranian english majors

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

The HKC authenticated stream cipher (Ver.1)

Authenticated encryption provides confidentiality and integrity in the same one-pass process, by computing a Message Authentication Code (MAC) at almost no cost over generating keystream. This is natively more efficient than providing confidentiality then authentication in separate passes. The argument as to whether compute MAC (on plaintext) then encrypt, encrypt then compute MAC (on ciphertex...

A realtime key recovery attack on the authenticated cipher FASER128

FASER is a family of authenticated ciphers submitted to the CAESAR competition, which contains two parent ciphers: FASER128 and FASER256. In this work we only focus on FASER128 and present a key recovery attack to FASER128, which needs at most 64 key words and is realtime in a PC. The result shows that FASER128 is very insecure. What’s more, our attack can be easily applied to FASER256 and brea...

COBRA: A Parallelizable Authenticated Online Cipher Without Block Cipher Inverse

We present a new, misuse-resistant scheme for online authenticated encryption, following the framework set forth by Fleischmann et al. (FSE 2012). Our scheme, COBRA, is roughly as efficient as the GCM mode of operation for nonce-based authenticated encryption, performing one block cipher call plus one finite field multiplication per message block in a parallelizable way. The major difference fr...

π-Cipher: Authenticated Encryption for Big Data

In today’s world of big data and rapidly increasing telecommunications, using secure cryptographic primitives that are parallelizable and incremental is becoming ever more important design goal. π-Cipher is parallel, incremental, nonce based authenticated encryption cipher with associated data. It is designed with the special purpose of providing confidentiality and integrity for big data in tr...

LAC: A Lightweight Authenticated Encryption Cipher