Semi-quantum group proxy blind signature method

The invention provides a semi-quantum group proxy blind signature method. A signature verifier and a part of proxy signers are only equipped with part of quantum capability. According to the method, the original signer authorizes the proxy signature group to sign on the basis of ensuring that the content of the message to be signed of the original message owner is blind to the original signer, the signature verifier, the proxy signature group and the trusted third party assisting in completing the signature process. The method provided by the invention has the advantages of unforgeability, non-repudiation, complete blindness and safety. Because a signature verifier and a part of proxy signers are only equipped with part of quantum capabilities, compared with many proposed quantum group proxy blind signature methods, the method provided by the invention has a wider signature application scene. 本发明提出一种半量子群代理盲签名方法，其中签名验证者和部分代理签名者仅配备部分量子能力。本发明的方法在保证原始消息拥有者的待签名消息内容对原始签名者、签名验证者、代理签名组和帮助完成签名过程的可信第三方都是盲的基础上实现原始签名者授权代