Other Directory Sites: SeekWonder | Directory Owners Forum
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:18:49
brands@xs4all.nl
Mon, 8 Mar 1999 06:08:19 -0500
At 16:58 7-03-99 -0800, Wei Dai wrote:
>...
>In online ecash systems based on blind signature schemes, the mint's
>public key doesn't really need to be used by anyone except the mint
>itself. So maybe it would be possible to create a blind ecash system based
>on symmetric cryptography, for example with a blind MAC analogous to blind
>signature. I don't know if such a thing (blind MAC) exists, but if it does
>perhaps it might not be covered by the blind signature patents.
The following paper might interest you:
M. Franklin and M. Yung, The blinding of weak signatures, Advances in
Cryptology -- Eurocrypt '94 Proceedings.
Stefan
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:18:49