Sciweavers

39 search results - page 1 / 8
» Tightness of the Security Bound of CENC
Sort
View
DAGSTUHL
2007
13 years 10 months ago
Tightness of the Security Bound of CENC
CENC (Cipher-based ENCryption) is the recently designed encryption mode for blockciphers. It is provably secure with beyond the birthday bound. In this note, we present a simple di...
Tetsu Iwata
FSE
2006
Springer
132views Cryptology» more  FSE 2006»
14 years 1 months ago
New Blockcipher Modes of Operation with Beyond the Birthday Bound Security
In this paper, we define and analyze a new blockcipher mode of operation for encryption, CENC, which stands for Cipher-based ENCryption. CENC has the following advantages: (1) bey...
Tetsu Iwata
TIT
2008
187views more  TIT 2008»
13 years 8 months ago
The Bare Bounded-Storage Model: The Tight Bound on the Storage Requirement for Key Agreement
Abstract--In the bounded-storage model (BSM) for information-theoretic secure encryption and key agreement, one makes use of a random string R whose length t is greater than the as...
Stefan Dziembowski, Ueli M. Maurer
CRYPTO
2012
Springer
237views Cryptology» more  CRYPTO 2012»
11 years 12 months ago
Tweakable Blockciphers with Beyond Birthday-Bound Security
Liskov, Rivest and Wagner formalized the tweakable blockcipher (TBC) primitive at CRYPTO’02. The typical recipe for instantiating a TBC is to start with a blockcipher, and then b...
Will Landecker, Thomas Shrimpton, R. Seth Terashim...
INDOCRYPT
2003
Springer
14 years 2 months ago
Stronger Security Bounds for OMAC, TMAC, and XCBC
OMAC, TMAC and XCBC are CBC-type MAC schemes which are provably secure for arbitrary message length. In this paper, we present a more tight upper bound on Advmac for each scheme, w...
Tetsu Iwata, Kaoru Kurosawa