External program security access architecture based on system on chip (SoC) and control method
An external program and security access technology, applied in computer security devices, instruments, electrical digital data processing, etc., can solve the problem of no security protection measures
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[0035] Embodiment: The present invention discloses a SoC chip-based external program security access architecture and access control method. The method includes a hardware platform of a storage management architecture, an implementation mechanism of a secure static access control method for an external program memory, and a secure dynamic access control method. a basic part. The memory management architecture referred to in the present invention is a chip based on the MCS-52 series Harvard memory architecture. SoC chips of this type of structure are widely used in the field of smart cards, and are widely used in my country, such as bank IC cards, social security cards, SIM card, citizen card, ID card and other chips.
[0036] 1. External program memory security access control architecture
[0037] External program memory security access control architecture such as figure 1 shown. It is composed of internal buffer memory RAM, extended external program storage area security a...
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