1190 search results - page 188 / 238 » Secure off-the-record messaging |
JOC
2011
13 years 6 months ago
2011
In this paper we introduce a new primitive called identity-based encryption with wildcards, or WIBE for short. It allows a sender to encrypt messages to a whole range of receivers ...
CTRSA
2011
Springer
13 years 2 months ago
2011
Springer
Abstract. Online ciphers are deterministic length-preserving permutations EK : ({0, 1}n )+ → ({0, 1}n )+ where the i-th block of ciphertext depends only on the first i blocks of...
CCS
2009
ACM
14 years 11 months ago
2009
ACM
In this work, we study several properties of the SHA-2 design which have been utilized in recent collision attacks against reduced round SHA-2. Small modifications to the SHA-2 des...
STOC
2005
ACM
14 years 11 months ago
2005
ACM
Our main result is a reduction from worst-case lattice problems such as GAPSVP and SIVP to a certain learning problem. This learning problem is a natural extension of the `learnin...
PERCOM
2007
ACM
14 years 10 months ago
2007
ACM
Mobile ad hoc networks show great potential in emergency response and/or recovery. Such mission-critical applications demand security service be "anywhere", "anytim...