The invention relates to an intelligent card hardware firewall
system and a realizing method thereof. The
system comprises a storage logic subsection management module, a storage space assess
authorization control module and a logic circuit module. The storage logic subsection management module is used for dividing a storage into one or a plurality of storage sections which are independent in logic, subsection management is achieved according to storage space, and each storage section stores program codes or data files with independent
logical relationship. The storage space assess
authorization control module is used for setting access
authorization between a
program code storage section and a
data file storage section. The logic circuit module is used for receiving an address access
signal and judging whether the address access
signal is valid according to the
program code section currently running and the access authorization set by the storage space assess authorization control module. According to the intelligent card hardware firewall
system and the realizing method thereof, logic subsection management and space
access control are achieved on a storage, so that safe coexisting of a plurality of applications on the same intelligent card is achieved, the hidden danger that an invalid program modifies an access zone and authorization of an application program through an
operating system is avoided, and safety of the intelligent card is guaranteed.