| 摘要 |
A COMMUNICATIONS DEVICE (30), WHICH HAS A CRYPTOGRAPHIC MODULE FOR USE IN MOBILE COMMUNICATIONS, CAN BE USED AS A CRYPTOGRAPHIC SERVICES PROVIDER (22, 24). FOR EXAMPLE, THE DEVICE MAY BE A DEVICE WHICH CAN OPERATE UNDER THE WIRELESS APPLICATION PROTOCOL, THAT IS, A WAP-ENABLED DEVICE, SUCH AS A MOBILE PHONE. THIS HAS THE ADVANTAGE THAT WAP-ENABLED DEVICES INCLUDE COMPONENTS WHICH ARE USED IN PUBLIC KEY/PRIVATE KEY CRYPTOGRAPHIC SYSTEMS AS A PART OF THEIR STANDARD COMMUNICATION FUNCTIONS. THESE COMPONENTS THEREFORE ADVANTAGEOUSLY ALLOW THE DEVICE TO BE USED AS A CRYPTOGRAPHIC SERVICES PROVIDER. ADVANTAGEOUSLY, THE DEVICE CAN USE WIRELESS TRANSPORT LAYER SECURITY (WTLS) FOR MOBILE COMMUNICATIONS, AND EMPLOYS ITS CRYPTOGRAPHIC NODULE WHEN IN USE AS A CRYPTOGRAPHIC SERVICES PROVIDER. (FIG. 1)
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