By use of the TTP, digital signature, encryption and decryption technologies, the system guaranteed the security and reliability of thee-business trade.
该系统借助可信第三方技术、数字签名和加密等技术，确保电子交易的安全性和可靠性。
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In a word, the seven fashionable restaurants and bars have distinguishing features and collect signature food all over the world. Customers would be guaranteed with a fantastic world trip of taste!
Furthermore, the proposed scheme can prevent the original signer from generating a valid proxy ring signature, thus the profits of the proxy signer are guaranteed.