Seminar Details
| Date |
28-5-2003 |
| Time |
14:30 |
| Room/Location |
214 |
| Title |
ID-based Chameleon Hash and Applications
|
| Speaker |
Giuseppe Ateniese |
| Affiliation |
Johns Hopkins University, Baltimore MD |
| Link |
http://www.cs.jhu.edu/~ateniese/
|
| Abstract |
Chameleon signatures are non-interactive signatures based on a
hash-and-sign paradigm which are similar to traditional digital
signatures but with the distinguishing characteristic of being non-transferable,
i.e., a designated recipient can verify that the signature is valid but cannot
show this to others.
In this talk, we introduce the first identity-based chameleon hash
function and we explore novel applications of this primitive.
The general advantages of identity-based cryptography over conventional
schemes, relative to key distribution, are even more pronounced in a
chameleon hashing scheme, because the owner of a public key does not necessarily
need to retrieve the associated secret key. |
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