Multi-party fair exchange protocol
In cryptography, a multi-party fair exchange protocol is protocol where parties accept to deliver an item if and only if they receive an item in return.[1]
Definition
Matthew K. Franklin and Gene Tsudik suggested in 1998[2] the following classification:
- An
-party single-unit general exchange is a permutation
on
, where each party
offers a single unit of commodity
to
, and receives a single unit of commodity
from
.
- An
-party multi-unit general exchange is a matrix of baskets, where the entry
in row
and column
is the basket of goods given by
to
.
See also
Secure multi-party computation
References
- ↑ Mukhamedov, Aybek; Kremer, Steve; Ritter, Eike. "Analysis of a Multi-Party Fair Exchange Protocol and Formal Proof of Correctness in the Strand Space model". Financial Crypto 2005.
- ↑ Franklin, Matthew K.; Tsudik, Gene (1998). "Secure Group Barter: Multi-party Fair Exchange with Semi-trusted Neutral Parties". Lecture Notes in Computer Science 1465: 90–102.
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