Unlinkable Divisible Digital Cash without Trusted Third Party

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Paper 2007/216

Unlinkable Divisible Digital Cash without Trusted Third Party

Pawel Pszona and Grzegorz Stachowiak

Abstract

We present an efficient divisible digital cash scheme which is unlinkable and does not require Trusted Third Party. The size of the coin is proportional to the size of the primes we use, i.e., hundreds of bytes. The computational and communication complexity of the protocol is proportional to a polynomial of the size of the primes and polylogarithm of the maximum number of pieces to which a coin can be subdivided.

Metadata

Available format(s): PDF PS
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Keywords: digital cash divisibility unlinkability
Contact author(s): gst @ ii uni wroc pl
History: 2007-07-05: last of 2 revisions; 2007-06-08: received; See all versions
Short URL: https://ia.cr/2007/216
License: CC BY