International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Stuart Haber

Publications

Year
Venue
Title
2007
EPRINT
Long-lived digital integrity using short-lived hash functions
Stuart Haber
New collision-finding attacks on widely used cryptographic hash functions raise questions about systems that depend on certain properties of these functions for their security. Even after new and presumably better hash functions are deployed, users may have digital signatures and digital time-stamp certificates that were computed with recently deprecated hash functions. Is there any way to use a new and currently unassailable hash function to buttress the security of an old signature or time-stamp certificate? The main purpose of this note is to remind the technical community of a simple solution to this problem that was published more than a decade ago.
1998
FSE
1996
JOFC
1993
CRYPTO
1992
EUROCRYPT
1991
JOFC
1990
CRYPTO
1989
EUROCRYPT
1987
CRYPTO
1985
CRYPTO

Program Committees

Crypto 2002
Crypto 2001