1. A novel one-time signature scheme is proposed with a short signature size of about 160 bits while much better computation efficiency than the BLS short signature. 提出了一种一次性短签名方案，该方案的签名长度只有160比特，但其计算效率远远高于BLS短签名方案。
2. The multi-designated verifiers signature is a special digital signature that the signature could only be checked by several designated verifiers. 多指定验证人签名是一种将签名验证者限定在指定的一组验证人中的特殊数字签名。
3. The digital signature is different from traditional signature, it is based on public key cryptosystems and is constructed by cryptogram arithmetic. 数字签名不同于传统的手写签名方式，它是基于公钥密码体制，依据一定的密码算法构造而成的。
4. Compared with other proxy signature, this scheme reduces the communication cost, since only the designated verifier can recover the message and verify the signature. 由于指定的验证者可以恢复消息并验证签名，与其他代理签名方案相比，减少了传输消息本身所需要的费用。
5. The signature mainly consists of the addresser's signature , the typed name of his and his business title. 签名主要包括写信人的手签名字、打印的名字和公司职务头衔。
