并在此基础之上，把运用于诸如电子商务等其他领域中的数字签名技术引入“校园一卡通”系统，设计出了校园CPU卡的密钥管理系统。

After do this, the paper introduce the digital signature which used in other domain such ase-commerce into "campus Cards System" then design the campus CPU card key management.

youdao

并在此基础之上，把运用于诸如电子商务等其他领域中的数字签名技术引入“校园一卡通”系统，设计出了校园CPU卡的密钥管理系统。

After do this, the paper introduce the digital signature which used in other domain such ase-commerce into "campus Cards System" then design the campus CPU card key management.

youdao