A cryptographic technique called signcryption combines the role of digital signature and encryption in a single logical step. This helps in reducing the computational cost associated with the traditional approach of signature-then-encryption technique. In last two decades, several signcryption schemes were proposed for single and multiple recipients, each having its own drawbacks and benefits. In this paper, we introduced an efficient signcryption scheme that uses the elliptic curve cryptography and is capable of transmitting data to multiple recipients. The scheme generates single signature by aggregating the multiple signatures for authentication and verification of data. This reduces the communication and computational cost associated with the signature generation and verification process. The analysis of the scheme shows that it has resistance against many known cryptographic attacks. Our scheme has the security features of non-repudiation, unforgeability, message confidentiality, forward secrecy, integrity, authentication and unforgeability.

一种称为签密的密码技术在一个逻辑步骤中结合了数字签名和加密的作用。这有助于减少与签名-然后-加密技术的传统方法相关的计算成本。在过去的二十年中，针对单个接收者和多个接收者提出了几种签密方案，每种方案都有其自身的缺点和益处。在本文中，我们介绍了一种有效的签密方案，该方案使用椭圆曲线密码学并且能够将数据传输到多个接收者。该方案通过聚合多个签名以进行数据验证和验证来生成单个签名。这减少了与签名生成和验证过程相关的通信和计算成本。对方案的分析表明，它可以抵抗许多已知的密码攻击。我们的方案具有不可否认性，不可伪造性，消息机密性，前向保密性，完整性，身份验证和不可伪造性的安全性特征。