IDEAS home Printed from https://ideas.repec.org/a/wsi/ijitdm/v02y2003i02ns0219622003000616.html
   My bibliography  Save this article

New Efficient Timed Commitment Schemes

Author

Listed:
  • WANG TAO

    (P.O. Box 126, Information Security Center, Beijing University of Posts & Telecommunications, Beijing 100876, China)

  • YI XIAN YANG

    (P.O. Box 126, Information Security Center, Beijing University of Posts & Telecommunications, Beijing 100876, China)

  • XIN XIN NIU

    (P.O. Box 126, Information Security Center, Beijing University of Posts & Telecommunications, Beijing 100876, China)

Abstract

A timed commitment is an extension to the standard commitment scheme in which there is a forced-open phase for the verifier to open the committed value even without the help of the committer. The first notion of timed commitment was from Boneh and Naor,2based on the hardness of the best-known algorithm for computingg(2n)modN. We use a different approach to design two new schemes. These two schemes are based upon ElGamal encryption and Pubic Verifiable Secret Sharing (PVSS) respectively. Unlike the original scheme, our schemes can be timed precisely, thus easy to be applied in some short-term schemes. We also discuss the implementation of our schemes in contract-signing schemes.

Suggested Citation

  • Wang Tao & Yi Xian Yang & Xin Xin Niu, 2003. "New Efficient Timed Commitment Schemes," International Journal of Information Technology & Decision Making (IJITDM), World Scientific Publishing Co. Pte. Ltd., vol. 2(02), pages 287-297.
    • Handle: RePEc:wsi:ijitdm:v:02:y:2003:i:02:n:s0219622003000616
    DOI: 10.1142/S0219622003000616
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0219622003000616
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0219622003000616?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:ijitdm:v:02:y:2003:i:02:n:s0219622003000616. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/ijitdm/ijitdm.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.