A Secure Self-synchronized Stream Cipher
Cryptography and Security
2017-09-26 v1
Abstract
We follow two main objectives in this article. On the one hand, we introduce a security model called LORBACPA for self-synchronized stream ciphers which is stronger than the blockwise LOR-IND-CPA, where we show that standard constructions as delayed CBC or similar existing self-synchronized modes of operation are not secure in this stronger model. Then, on the other hand, following contributions of G.~Mill\'{e}rioux et.al., we introduce a new self-synchronized stream cipher and prove its security in LORBACPA model.
Keywords
Cite
@article{arxiv.1709.08613,
title = {A Secure Self-synchronized Stream Cipher},
author = {Amir Daneshgar and Fahimeh Mohebbipoor},
journal= {arXiv preprint arXiv:1709.08613},
year = {2017}
}