Encryption control apparatus
First Claim
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1. An encryption control apparatus, comprising:
- a CPU for running a program;
a ROM for storing the program run by the CPU;
a RAM used as a work area while the CPU is running the program;
an I/O section for sending/receiving data to/from an external device; and
an encryption section for decrypting encrypted data and encrypting plain text data, wherein each of the foregoing components is formed on a single semiconductor device.
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Abstract
An encryption control apparatus for encrypting and decrypting data that ensures data security by preventing illegal deciphering or leakage of the data is provided. A CPU 11A for running a program, a ROM 13A for storing the program run by the CPU, a RAM 12A used as a work area while the CPU is running the program, an I/O section 14A for sending/receiving data to/from an external device, and an encryption section 15A for decrypting encrypted data and encrypting plain text data are formed on a single semiconductor device.
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Citations
11 Claims
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1. An encryption control apparatus, comprising:
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a CPU for running a program;
a ROM for storing the program run by the CPU;
a RAM used as a work area while the CPU is running the program;
an I/O section for sending/receiving data to/from an external device; and
an encryption section for decrypting encrypted data and encrypting plain text data, wherein each of the foregoing components is formed on a single semiconductor device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification