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首页> 外文会议>4th International Conference on Cryptology in India; Dec 8-10, 2003; New Delhi, India >Efficient Verifiably Encrypted Signature and Partially Blind Signature from Bilinear Pairings
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Efficient Verifiably Encrypted Signature and Partially Blind Signature from Bilinear Pairings

机译：双线性配对的有效可验证加密签名和部分盲签名

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摘要

Verifiably encrypted signatures are used when Alice wants to sign a message for Bob but does not want Bob to possess her signature on the message until a later date. Such signatures are used in optimistic contact signing to provide fair exchange. Partially blind signature schemes are an extension of blind signature schemes that allows a signer to sign a partially blinded message that include pre-agreed information such as expiry date or collateral conditions in unblinded form. These signatures are used in applications such as electronic cash (e-cash) where the signer requires part of the message to be of certain form. In this paper, we propose a new verifiably encrypted signature scheme and a partially blind signature scheme, both based on bilinear pairings. We analyze security and efficiency of these schemes and show that they are more efficient than the previous schemes of their kind.
机译：当Alice想要为Bob签名邮件但不希望Bob在以后的邮件上拥有她的签名时，将使用可验证的加密签名。此类签名用于乐观联系签名中以提供公平的交换。部分盲签名方案是盲签名方案的扩展，它允许签名者对部分盲消息进行签名，该消息包括预先约定的信息（例如到期日期或附带条件的非盲形式）。这些签名用于诸如电子现金（e-cash）之类的应用中，其中签名者要求部分消息具有某种形式。在本文中，我们提出了一种基于双线性对的新的可验证加密签名方案和部分盲签名方案。我们分析了这些方案的安全性和效率，并表明它们比同类同类方案更有效。

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