Storage device including a non-volatile memory

Details Storage device including a non-volatile memory Storage device including a non-volatile memory

2007-01-09

2007-01-09

Louis-Jacques, Jacques (Department: 2134)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S167000, C726S026000

Reexamination Certificate

active

10062451

ABSTRACT:
A storage device includes a tamper-resistant module and a flash memory. In correspondence with a command, a CPU inside the tamper-resistant module judges the security of data received from the outside, then recording the data as follows: High-security and small-capacity data is recorded into a memory inside the tamper-resistant module. High-security and large-capacity data is encrypted, then being recorded into the flash memory. Low-security data is recorded as it is into the flash memory. This recording method permits large-capacity data to be stored while ensuring a security (i.e., a security level) corresponding thereto.

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