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未完全抵御replay attack
设计中只考虑了nullfier hash来防止proof被重复使用，不过用户在tokenResponse函数时发送的交易在执行前就已经将proof暴露了，攻击者可以将参数中的res替换成自己的，随后提高gas fee以抢先打包交易，即可窃取用户的属性，可以考虑让交易发送者的地址或是res作为电路输入参与到proof的计算中，从而将proof与用户进行绑定。
想请问是用什么写的电路并生成的验证合约？
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