1. The design principle of exchange protocol includes security, anonymity, non-repudiation, atomicity (), fairness and efficiency. 该交易协议设计原则包括安全性、匿名性、非否认性、原子性、公平性与效率。
2. The protocol not only guarantees the non repudiation and anonymity of the bidder, but also ensures the non repudiation of the bid received. 协议不仅保证了投标者对所投价位的不可否认性和匿名性，而且保证了拍卖代理对接收标书的不可否认性。
3. This paper proposes a new multi-proxy signature scheme with provably secure. The new scheme fully meet unforgea-ability and non-repudiation requirements. 提出了一种新的、安全的多重代理签名方案，它能够满足不可否认性和不可伪造性的要求。
英英解释
n.
1. rejecting or disowning or disclaiming as invalid
2. refusal to acknowledge or pay a debt or honor a contract (especially by public authorities)
3. the exposure of falseness or pretensions
