Memory card
First Claim
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1. A memory card for use in a system including an external read/writing selection, said memory card comprising:
- data processing means, provided in said card medium, for encrypting/decrypting input data; and
memory means, provided on the surface of said card medium and not connected to said data processing means, for storing the input data encrypted by said data processing means;
whereinthe external card read/writing section writes encrypted data output from said data processing means in said memory means, and reads written data from said memory means, said read data being sent to said data processing means and decrypted.
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Accused Products
Abstract
A memory card has a card medium and a laser memory for storing data. A data processing section for storing encryption and/or decryption key data, an encryption and/or decryption program and a password is arranged in the card medium. When the same password as prestored in the data processing section is input, the input data is encrypted and/or decrypted in accordance with the encryption and/or decryption key data and the encryption and/or decryption program. The encrypted and/or decrypted data is stored in the laser memory.
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Citations
10 Claims
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1. A memory card for use in a system including an external read/writing selection, said memory card comprising:
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data processing means, provided in said card medium, for encrypting/decrypting input data; and memory means, provided on the surface of said card medium and not connected to said data processing means, for storing the input data encrypted by said data processing means;
whereinthe external card read/writing section writes encrypted data output from said data processing means in said memory means, and reads written data from said memory means, said read data being sent to said data processing means and decrypted. - View Dependent Claims (2, 3, 4, 5)
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6. A memory card system comprising:
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a card medium including data processing means provided in said card medium, for encrypting/decrypting input data, and memory means, provided on the surface of said card medium and not connected to said data-processing means, for storing the encrypted data; and an external card reading/writing section or writing the encrypted data output from said data processing means in said memory means, and for reading the written data from said memory means, said read-out data being sent to said data-processing means and decoded. - View Dependent Claims (7, 8, 9, 10)
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Specification