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CRYPTO
2001
Springer
117views Cryptology» more  CRYPTO 2001»
15 years 2 months ago
Online Ciphers and the Hash-CBC Construction
We initiate a study of on-line ciphers. These are ciphers that can take input plaintexts of large and varying lengths and will output the ith block of the ciphertext after having p...
Mihir Bellare, Alexandra Boldyreva, Lars R. Knudse...
FSE
2006
Springer
137views Cryptology» more  FSE 2006»
15 years 1 months ago
A Study of the MD5 Attacks: Insights and Improvements
MD5 is a well-known and widely-used cryptographic hash function. It has received renewed attention from researchers subsequent to the recent announcement of collisions found by Wa...
John Black, Martin Cochran, Trevor Highland
WWW
2007
ACM
15 years 10 months ago
On anonymizing query logs via token-based hashing
In this paper we study the privacy preservation properties of a specific technique for query log anonymization: tokenbased hashing. In this approach, each query is tokenized, and ...
Ravi Kumar, Jasmine Novak, Bo Pang, Andrew Tomkins
SCN
2004
Springer
123views Communications» more  SCN 2004»
15 years 3 months ago
On the Key Exposure Problem in Chameleon Hashes
Chameleon signatures were introduced by Krawczyk and Rabin, being non-interactive signature schemes that provide non-transferability. However, that first construction employs a c...
Giuseppe Ateniese, Breno de Medeiros
ACISP
2007
Springer
15 years 1 months ago
Combining Prediction Hashing and MDS Codes for Efficient Multicast Stream Authentication
We study the multicast stream authentication problem when the communication channel is under control of an opponent who can drop, reorder and inject data packets. In this work, we...
Christophe Tartary, Huaxiong Wang