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A Universally Composable Scheme for Electronic Cash

Authors:
Marten Trolin
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URL: http://eprint.iacr.org/2005/341
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Abstract: We propose a scheme for electronic cash based on symmetric primitives. The scheme is secure in the framework for universal composability assuming the existence of a symmetric CCA2-secure encryption scheme, a CMA-secure signature scheme, and a family of one-way, collision-free hash functions. In particular, the security proof is not in the random-oracle model. Due to its high efficiency, the scheme is well-suited for devices such as smart-cards and mobile phones. We also show how the proposed scheme can be used as a group signature scheme with one-time keys.
BibTeX
@misc{eprint-2005-12675,
  title={A Universally Composable Scheme for Electronic Cash},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols / electronic cash},
  url={http://eprint.iacr.org/2005/341},
  note={Extended abstract at Indocrypt 2005. This is the full version. marten@nada.kth.se 13067 received 19 Sep 2005, last revised 11 Oct 2005},
  author={Marten Trolin},
  year=2005
}