Authentication System
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0 Petitions
Accused Products
Abstract
An object is to achieve both the safety and convenience in authentication of an object to be authenticated which is required in various situations. An authentication system (900) includes a first authentication information transmitting device (901) having first authentication information, a second authentication information transmitting device (904) having second authentication information, and an authentication section (905) for authenticating a user or authority of the user. The second authentication information transmitting device (904) sends the second authentication information in only a period during which it receives the first authentication information sent from the first authentication information transmitting device (901). The authentication section (905) receives the second authentication information sent from the second authentication information transmitting device (904), and authenticates the user or the authority of the user based on the second authentication information.
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Citations
70 Claims
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1-15. -15. (canceled)
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16. An authentication system, comprising:
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a first device having first authentication information;
a second device having second authentication information; and
a third device for authenticating a user or authority of the user, in which the first device includes;
a first authentication information storage unit for storing the first authentication information; and
a first transmission unit for continuously transmitting the first authentication information, the second device includes;
a first authentication information receiving unit for receiving the first authentication information sent from the first device;
a second authentication information storage unit for storing the second authentication information;
a determination unit for determining truth or falsehood of correspondence between the first authentication information and the second authentication information; and
a communication unit for sending to-be-authenticated information in a period during which the first authentication information receiving unit receives the first authentication information and only when the correspondence between the first authentication information and the second authentication information is determined to be true by the determination unit, the third device includes;
a to-be-authenticated information receiving unit for receiving the to-be-authenticated information sent from the second device; and
an authentication unit for authenticating the user or the authority of the user based on the to-be-authenticated information. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An authentication apparatus, comprising:
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a first authentication receiving unit for receiving first authentication information;
a second authentication information storage unit for storing second authentication information;
a determination unit for determining truth or falsehood of correspondence between the first authentication information and the second authentication information; and
a second communication unit for sending to-be-authenticated information in a period during which the first authentication receiving unit is receiving the first authentication information and only when the correspondence between the first authentication information and the second authentication information is determined to be true by the determination unit. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. An authentication method, comprising:
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a first step for receiving first authentication information continuously transmitted by other device;
a second step for determining truth or falsehood of correspondence between the first authentication information and the second authentication information which is previously stored; and
a third step for sending to-be-authenticated information in a period during which the first authentication information is being received in the first step and only when the correspondence between the first authentication information and the second authentication information is determined to be true in the second step.
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55. A computer program which runs on a computer to perform a process of:
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a first step for receiving first authentication information continuously transmitted by other device;
a second step for determining truth or falsehood of correspondence between the first authentication information and the second authentication information which is previously stored; and
a third step for sending to-be-authenticated information in a period during which the first authentication information is being received in the first step and only when the correspondence between the first authentication information and the second authentication information is determined to be true in the second step.
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56. A recording medium, comprising:
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a first area which is optically accessible and on which encrypted content information is configured to be recorded; and
a second area which is accessible through radio wave communication and only from an authenticated device and on which an encryption key of the encrypted content information is configured to be recorded; and
a third area which is accessible through radio wave communication without any authentication and in which the encrypted encryption key obtained by encrypting the encryption key can be stored. - View Dependent Claims (57)
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58. An information recording medium comprising an information storage device and including a first area for storing encrypted information which is encrypted with an encryption key, wherein:
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the information storage device includes;
a second area which is accessible only from a device authenticated by the information storage device and in which the encryption key is stored, and a third area in which encrypted encryption key obtained by encrypting the encryption key is stored.
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59. A recording apparatus for recording information on a recording medium, the recording apparatus comprising:
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a first obtaining section for obtaining first information;
a second obtaining section for obtaining second information from a second area on the recording medium which is accessible only from an authenticated device;
an authentication section for performing authentication related to the first information and authentication for obtaining the second information from the second area;
an encryption section for encrypting the second information using the first information authenticated by the authentication section; and
a recording section for recording the encrypted second information on a third area of the recording medium. - View Dependent Claims (60, 61, 62, 63)
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64. A method for recording information on a recording medium, comprising:
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a first step for obtaining first information;
a second step for performing authentication related to the first information;
a third step for performing authentication with a second area on the recording medium which is accessible only from an authenticated device;
a fourth step for obtaining second information from the second area;
a fifth step for encrypting the second information using the first information; and
a sixth step for recording the encrypted second information on a third area of the recording medium.
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65. A reproducing apparatus for a recording medium including a content recording area on which content information is recorded, the reproducing apparatus comprising:
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a first obtaining section for obtaining first information;
a second obtaining section for obtaining encrypted second information from the recording medium;
a third obtaining section for obtaining the content information from the content recording area;
an authentication section for performing authentication related to the first information;
a first decoding section for decoding the second information using the first information authenticated by the authentication section; and
a second decoding section for decoding the content information using the decoded second information. - View Dependent Claims (66, 67, 68, 69)
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70. A method for reproducing a recording medium including a content recording area on which content information is recorded, comprising:
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a first step for obtaining first information;
a second step for performing authentication related to the first information;
a third step for obtaining encrypted second information from the recording medium;
a fourth step for decoding the second information using the first information;
a fifth step for obtaining the content information from the content recording area; and
a sixth step for decoding the content information using the decoded second information.
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Specification