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arXiv 1107.1847cs.CR
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一种高效的基于身份的公开可验证签密方案

Efficient Identity Based Public Verifiable Signcryption Scheme

Prashant Kushwah, Sunder Lal

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11 pages
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摘要：

签密是一种在单个逻辑步骤中执行加密和签名的密码原语。在传统的签密中，只有签密文本的接收者可以在解密密文之后验证消息上的源（即发送者的签名）的真实性。在公开可验证签密方案中，任何人都可以验证能够访问签密文本的来源的真实性，即发送者对密文的签名。公开可验证签密方案中，接收者可以通过提供除私钥以外的附加信息来说服第三方，这种方案被称为第三方可验证签密方案。本文提出了一个有效的基于身份的可公开验证签密方案，并在随机预言机模型下证明了该方案的安全性。

英文摘要：

Signcryption is a cryptographic primitive which performs encryption and signature in a single logical step. In conventional signcryption only receiver of the signcrypted text can verify the authenticity of the origin i.e. signature of the sender on the message after decrypting the cipher text. In public verifiable signcryption scheme anyone can verify the authenticity of the origin who can access the signcrypted text i.e. signature of the sender on the cipher text. Public verifiable signcryption scheme in which the receiver can convince a third party, by providing additional information other than his private key along with the signcryption is called third party verifiable signcryption schemes. In this paper we proposed an efficient identity based public verifiable signcryption scheme with third party verification and proved its security in the random oracle model.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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