LTSC-128: Stream Cipher Based on the Intractable Shortest Vector Problem in Lattice
Khaled Suwais, Azman Samsudin
Journal of Digital Information Management, Vol. 9, No. 1, 2011.
DOI: 
Link: http://www.dline.info/fpaper/jdim/v9i1/4.pdf
Abstract:
LTSC-128 is a high secure stream cipher based on the hardness of the Shortest Vector Problem in Lattice space. The cipher is based on vectors multiplication over finite field, where these vectors are represented by polynomials to enhance the per formance of keystream generation. The key size is 128 bits and there is no attack faster than exhaustive key search has been identified. The experimental results showed that the encryption rate of LTSC-128 is about 50Mbit/second. LTSC-128 cipher has additional feature that its performance can be increased by applying multithreading technique on multi-core processors. The multithreaded version of LTSC-128 has achieved better encryption rate of 71Mbit/second on dual-core processor.