Integrated circuit, encryption communication apparatus, encryption communication system, information processing method and encryption communication method

A technology for encrypted communication and communication devices, which is applied in secure communication devices, transmission systems, digital transmission systems, etc., and can solve problems such as mutual authentication and invalid encrypted communication.
CN101847296AInactive Publication Date: 2010-09-29SONY CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SONY CORP
Publication Date
2010-09-29
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides an integrated circuit, an encryption communication apparatus, an encryption a communication system, an information processing method and an encryption communication method. The integrated circuit includes an arithmetic circuit having input / output characteristics determined by element-specific physical characteristics; a storage unit having cipher text obtained by performingencryption processing on predetermined secret information using an output value output from the arithmetic circuit with respect to input of a predetermined value and the predetermined value input into the arithmetic circuit stored therein; and a decryption unit that restores the predetermined secret information by inputting the predetermined value stored in the storage unit into the arithmetic circuit and decrypting the cipher text stored in the storage unit using the output value output from the arithmetic circuit when the predetermined secret information is used.
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Description

technical field

[0001] The present invention relates to an integrated circuit, an encryption communication device, an encryption communication system, an information processing method and an encryption communication method. Background technique

[0002] Various cards such as credit cards, cash cards, prepaid cards, identification cards, and various membership cards have been used in various situations. These various cards have stored therein information on the type of the card, the card issuer, the holder, and the like. For example, in magnetic cards, this information is stored in a magnetic strip on the card. Therefore, there is a risk that the magnetic information is illegally read or falsified by a technique called "skimming". On the other hand, as cards are widely used, various services using the cards are increasingly provided, thereby increasing the amount and value of information recorded in the cards. Therefore, there is a need to realize a card that can securely ...

Claims

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