| 摘要 |
A method of securing communications between a host computer and a token having a smart card processor, which token is communicatively coupled to the host computer via a USB-compliant interface, includes the steps of requesting token information when the token is coupled to the host computer, and initializing communications with the token, including establishing an encryption key between the token and the host computer. The encryption key is established between the token and the host computer by the steps of receiving a token public key Kpu from the token, encrypting a random key Kr with the token public key Kpu and transmitting the encrypted random key E<SUB>Kpu</SUB>(Kr) to the token. |
