| 摘要 |
The invention relates to a personal token (PT) for a hosting telecommunication terminal (T) such personal token (PT) storing a secret master key and comprising a microprocessor and a software equipment for interpreting at least one incoming command so as to generate first derived key material on the basis of the stored secret master key and on the basis of the content of said incoming at least one command, said software equipment controlling interpretation of said command so as to determine whether said command indicates that the first derived key material should be delivered to the hosting terminal (T) or not, characterized in that the software equipment performs a checking task as to whether the command comprises a content which complies with a predetermined content format and refuses to proceed to delivery of the first derived key material in case said content does not comply with said content format. |
