guarantee for a person的意思|示意

The only way to guarantee that the public key signature is from the owner is for the owner to hand you the key on a disk, in person.

保证公共密钥签名来自所有者的惟一方法是，密钥的所有者亲自把磁盘上的密钥交给您。

In other words, if I'm a rich, wealthy person in Corinth, I would say, "I'll be the local tax collector, and I'll guarantee you I'll send to Rome this amount of money for a year."

换句话说，如果我是科林斯的富人，我会说，“我想当本地税吏，我保证每年向罗马缴纳多少多少钱。”