International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

John Kelsey

Publications

Year
Venue
Title
2024
TOSC
XDRBG: A Proposed Deterministic Random Bit Generator Based on Any XOF
A deterministic random bit generator (DRBG) generates pseudorandom bits from an unpredictable seed, i.e., a seed drawn from any random source with sufficient entropy. The current paper formalizes a security notion for a DRBG, in which an attacker may make any legal sequence of requests to the DRBG and sometimes compromise the DRBG state, but should still not be able to distingush DRBG outputs from ideal random bits. The paper proposes XDRBG, a new DRBG based on any eXtendable Output Function (XOF) and proves the security of the XDRBG in the ideal-XOF model. The proven bounds are tight, as demonstrated by matching attacks. The paper also discusses the security of XDRBG against quantum attackers. Finally, the paper proposes concrete instantiations of XDRBG, employing either the SHAKE128 or the SHAKE256 XDRBG. Alternative instantiations suitable for lightweight applications can be based on ASCON.
2016
JOFC
2015
CHES
2013
CHES
The Future of SHA-3
John Kelsey
2008
EUROCRYPT
2006
EUROCRYPT
2006
FSE
2005
EUROCRYPT
2003
FSE
2002
FSE
2000
FSE
2000
FSE
1999
FSE
1998
CRYPTO
1998
FSE
1998
FSE
1997
CRYPTO
1996
CRYPTO
1996
FSE

Program Committees

FSE 2018
FSE 2017
FSE 2013
Eurocrypt 2012
FSE 2012
Crypto 2010
Eurocrypt 2009
Crypto 2007
FSE 2007