COMMUNICATIONS SYSTEM, COMMUNICATIONS APPARATUS AND METHOD, AND COMPUTER PROGRAM
First Claim
1. A communications system configured to execute data transmission by use of a first transmission media and a second transmission media that are different from each other in security level, the communication system comprising:
- a communications apparatus on a transmitting side dividing transmission data into first transmission data and second transmission data that are transmitted via said first transmission media and said second transmission media, respectively, encrypting said first transmission data by use of at least a part of said second transmission data, transmitting the encrypted first transmission data to said first transmission media, and transmitting said second transmission data to said second transmission media in an unencrypted form; and
a communications apparatus on a receiving side receiving said encrypted first transmission data via said first transmission media, receiving said second transmission data via said second transmission media, decrypting the encrypted first transmission data by use of at least a part of said second transmission data, and reconfiguring original transmission data from said first transmission data and said second transmission data.
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Accused Products
Abstract
Disclosed herein is a communications system configured to execute data transmission by use of a first transmission media and a second transmission media that are different from each other in security level, a communications apparatus on a transmitting side dividing transmission data into first transmission data and second transmission data that are transmitted via said first transmission media and said second transmission media, respectively, encrypting said first transmission data by use of at least a part of said second transmission data, transmitting the first and second transmission data, a communications apparatus on a receiving side receiving said first and second transmission data decrypting the encrypted first transmission data by use of at least a part of said second transmission data, and reconfiguring original transmission data from said first transmission data and said second transmission data.
44 Citations
21 Claims
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1. A communications system configured to execute data transmission by use of a first transmission media and a second transmission media that are different from each other in security level, the communication system comprising:
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a communications apparatus on a transmitting side dividing transmission data into first transmission data and second transmission data that are transmitted via said first transmission media and said second transmission media, respectively, encrypting said first transmission data by use of at least a part of said second transmission data, transmitting the encrypted first transmission data to said first transmission media, and transmitting said second transmission data to said second transmission media in an unencrypted form; and a communications apparatus on a receiving side receiving said encrypted first transmission data via said first transmission media, receiving said second transmission data via said second transmission media, decrypting the encrypted first transmission data by use of at least a part of said second transmission data, and reconfiguring original transmission data from said first transmission data and said second transmission data. - View Dependent Claims (2, 3, 4, 5)
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6. A communications apparatus configured to transmit data to a first transmission media and a second transmission media that are different from each other in security, level, the communications apparatus comprising:
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data distributing means for distributing transmission data to first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media; encryption processing means for encrypting said first transmission data by use of at least a part of said second transmission data; and data transmitting means for transmitting the encrypted first transmission data to said first transmission media and transmit said second transmission data to said second transmission media in an encrypted form. - View Dependent Claims (7, 8, 9, 10)
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11. A communications apparatus configured to receive data via first transmission media and a second transmission media that are different from each other in security level, the communications apparatus comprising:
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a communications apparatus on a transmitting side dividing transmission data into first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media, respectively, encrypting said first transmission data by use of at least a part of said second transmission data, transmitting the encrypted first transmission data to said first transmission media, and transmitting said second transmission data to said second transmission media in an unencrypted form, comprising; data receiving means for receiving said encrypted first transmission data via said first transmission media and said second transmission data via said second transmission media, decryption processing means for decrypting the encrypted first transmission data by use of at least a part of the received second transmission data, and data reconfigurating means for reconfiguring the original transmission data from the decrypted first transmission data and the received second transmission data. - View Dependent Claims (12, 13, 14, 15)
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16. A communications method configured to transmit data to a first transmission media and a second transmission media that are different from each other in security level, comprising:
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distributing transmission data to first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media; encrypting said first transmission data by use of at least a part of said second transmission data; and transmitting the encrypted first transmission data to said first transmission media and transmit said second transmission data to said second transmission media in an encrypted form.
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17. A communications method configured to receive data via a first transmission media and a second transmission media that are different from each other in security level, wherein a communications apparatus on a transmitting side divides transmission data into first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media, respectively, encrypts said first transmission data by use of at least a part of said second transmission data, transmits the encrypted first transmission data to said first transmission media, and transmits said second transmission data to said second transmission media in an unencrypted form, said communication method comprising:
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receiving said encrypted first transmission data via said first transmission media and said second transmission data via said second transmission media; decrypting the encrypted first transmission data by use of at least a part of the received second transmission data; and reconfiguring the original transmission data from the decrypted first transmission data and the received second transmission data.
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18. A computer program written in a computer-readable form so as to execute, on a computer, processing of transmission of data to a first transmission media and a second transmission media that are different from each other in security level, comprising the steps of:
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distributing transmission data to first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media; encrypting said first transmission data by use of at least a part of said second transmission data; and transmitting the encrypted first transmission data to said first transmission media and transmit said second transmission data to said second transmission media in an encrypted form.
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19. A computer program written in a computer-readable form so as to execute, on a computer, processing of transmission of data to a first transmission media and a second transmission media that are different from each other in security level, wherein a communications apparatus on a transmitting side divides transmission data into first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media, respectively, encrypts said first transmission data by use of at least a part of said second transmission data, transmits the encrypted first transmission data to said first transmission media, and transmits said second transmission data to said second transmission media in an unencrypted form, said computer program comprising the steps of:
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receiving said encrypted first transmission data via said first transmission media and said second transmission data via said second transmission media; decrypting the encrypted first transmission data by use of at least a part of the received second transmission data; and reconfiguring the original transmission data from the decrypted first transmission data and the received second transmission data.
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20. A communications apparatus configured to transmit data to a first transmission media and a second transmission media that are different from each other in security level, comprising:
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a data distributor configured to distribute transmission data to first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media; a encryption processor configured to encrypt said first transmission data by use of at least a part of said second transmission data; and a data transmitter configured to transmit the encrypted first transmission data to said first transmission media and transmit said second transmission data to said second transmission media in an encrypted form.
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21. A communications apparatus configured to receive data via first transmission media and a second transmission media that are different from each other in security level the communications apparatus comprising:
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a first communications apparatus on a transmitting side dividing transmission data into first transmission data and second transmission data to be transmitted via said first transmission media and said second transmission media, respectively, encrypting said first transmission data by use of at least a part of said second transmission data, transmitting the encrypted first transmission data to said first transmission media, and transmitting said second transmission data to said second transmission media in an unencrypted form, comprising; a data receiver configured to receive said encrypted first transmission data via said first transmission media and said second transmission data via said second transmission media; a decryption processor configured to decrypt the encrypted first transmission data by use of at least a part of the received second transmission data; and a data reconfigurator configured to reconfigure the original transmission data from the decrypted first transmission data and the received second transmission data.
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Specification