BIB-VERSION:: CS-TR-v2.0
ID:: ncstrl.dartmouthcs//TR2009-640
ENTRY:: March 26, 2009
ORGANIZATION:: Dartmouth College, Computer Science
REQUESTED-BY:: sws@cs.dartmouth.edu
REQUESTED-FOR:: Pak.Kong.Tsang@Dartmouth.EDU
REQUESTED-DATE:: Wed Jan 28 18:43:04 EST 2009
TITLE:: Authenticated Streamwise On-line Encryption
TYPE:: Technical Report (paper)
REVISION:: 1
AUTHOR:: Tsang, Patrick P.
AUTHOR:: Solomakhin, Rouslan V.
AUTHOR:: Smith, Sean W.
DATE:: March 2009
RETRIEVAL:: For a paper copy, email <reports@cs.dartmouth.edu>
RETRIEVAL:: For a paper copy, write to
       Technical Report Librarian
       Department of Computer Science
       Dartmouth College
       6211 Sudikoff Laboratory
       Hanover, NH 03755-3510
       USA
RETRIEVAL:: PDF at http://www.cs.dartmouth.edu/reports/TR2009-640.pdf
ABSTRACT:: 
In Blockwise On-line Encryption, encryption and decryption
return an output block as soon as the next input block is received.
In this paper, we introduce Authenticated Streamwise On-line
Encryption (ASOE), which operates on plaintexts and ciphertexts as
streams of arbitrary length (as opposed to fixed-sized blocks),
and thus significantly reduces message expansion and end-to-end
latency.  Also, ASOE provides data authenticity as an option.
ASOE can therefore be used to efficiently secure
resource-constrained communications with real-time requirements such
as those in the electric power grid and wireless sensor networks.
  We investigate and formalize ASOE's strongest achievable notion of
security, and present a construction that is secure under that notion.
An instantiation of our construction incurs zero end-to-end
latency due to buffering and only 48 bytes of message expansion,
regardless of the plaintext-size.
END:: ncstrl.dartmouthcs//TR2009-640