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    • 4. 发明授权
    • System and method for downloading application components to a chipcard
    • 将应用程序组件下载到芯片卡的系统和方法
    • US07117364B1
    • 2006-10-03
    • US09679333
    • 2000-10-04
    • Stefan HepperThomas Schaeck
    • Stefan HepperThomas Schaeck
    • H04L9/00
    • G07F7/1008G06Q20/3552
    • The present invention describes a method for downloading application components, so-called on-card application components, from a server via a client to a chipcard, wherein the server and the client communicate with each other via a distributed system, in particular an Intranet or the Internet. The advantages of the present invention lie in the fact that downloading of the application components is divided into two stages: The first stage occurs on the server only, and ensures that not every command to download the application component is sent individually over the network. This is effected by means of a broadband-optimized protocol which bundles the individual commands to download the application component into a command sequence and sends it as a complete data packet over the network. This reduces the time required for downloading application components over the network. Each command within the command sequence is assigned a digital signature and, where appropriate, encrypted. This ensures that only authenticated commands are accepted by the chipcard. In this way this invention meets security requirements for the transfer of data via distributed systems, in particular over the Internet. The second stage occurs between the client and the chipcard, and ensures that the data packets are unpacked and sent individually to the chipcard. All security-relevant keys and certificates are stored on the secure server. Communication between the client and the server runs preferentially via SSL (Secure Sockets Layer) as the transfer protocol. Misuse of the inventive system/method is thereby rendered much more difficult.
    • 本发明描述了一种用于从服务器经由客户端下载应用程序组件(即所谓的卡上应用程序组件)到芯片卡的方法,其中服务器和客户端经由分布式系统,特别是内联网或者 互联网。 本发明的优点在于应用程序组件的下载被分为两个阶段:第一阶段仅在服务器上发生,并且确保不是通过网络单独发送每个下载应用组件的命令。 这通过宽带优化协议实现,该协议捆绑各个命令以将应用组件下载到命令序列中,并通过网络将其作为完整的数据分组发送。 这减少了通过网络下载应用程序组件所需的时间。 命令序列中的每个命令都被分配一个数字签名,并在适当的情况下加密。 这确保了芯片卡只接受已认证的命令。 以这种方式,本发明满足了通过分布式系统特别是通过因特网传输数据的安全性要求。 第二级发生在客户端和芯片卡之间,并确保数据包被解包并单独发送到芯片卡。 所有安全相关的密钥和证书都存储在安全服务器上。 客户端和服务器之间的通信优先通过SSL(安全套接字层)作为传输协议运行。 因此,滥用本发明的系统/方法变得更加困难。