将共享验证和签密的概念引入到门限代理签名中,构造了一个安全有效的共享验证的门限代理签密方案。该方案不仅实现了门限代理签密,而且还实现了指定验证组中的不少于t个验证人一起才能恢复消息,验证签密的特性。另外,该方案还具有消息保密性、可公开验证性和公开信道授权的优点。
The concepts of shared verification and signcryption are introduced into threshold proxy signature,and a secure and efficient threshold proxy signcryption scheme with shared verification is presented.In the scheme,any t or more proxy signers can sign a message on behalf of an original signer, and only t or more verifiers of the specified group together can recover the message and verify the validity of proxy signcryption.Furthermore,the scheme also has the merits of secrecy,public verifiability and pubic delegation.