DEVICE, SERVER AND METHOD FOR PROVIDING SECRET KEY ENCRYPTION AND RESTORATION
First Claim
1. A secret key encryption and restoration device, comprising:
- a communication module;
a memory that stores a secret key encryption and restoration program; and
a processor that executes the program,wherein when a request for restoration of a secret key is received from a user, the processor restores the secret key of which restoration is requested on the basis of restoration information received from each of a key management server and one or more trusted devices according to execution of the program,the secret key of the user is generated and encrypted by the processor in response to the request from the user, andthe restoration information is generated corresponding to the secret key and then transmitted to each of the key management server and the one or more trusted devices through the communication module.
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Accused Products
Abstract
The present disclosure includes: a communication module; a memory that stores a secret key encryption and restoration program; and a processor that executes the program, wherein when a request for restoration of a secret key is received from a user, the processor restores the secret key of which restoration is requested on the basis of restoration information received from each of a key management server and one or more trusted devices according to execution of the program, the secret key of the user is generated and encrypted by the processor in response to the request from the user, and the restoration information is generated corresponding to the secret key and then transmitted to each of the key management server and the one or more trusted devices through the communication module.
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Citations
17 Claims
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1. A secret key encryption and restoration device, comprising:
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a communication module; a memory that stores a secret key encryption and restoration program; and a processor that executes the program, wherein when a request for restoration of a secret key is received from a user, the processor restores the secret key of which restoration is requested on the basis of restoration information received from each of a key management server and one or more trusted devices according to execution of the program, the secret key of the user is generated and encrypted by the processor in response to the request from the user, and the restoration information is generated corresponding to the secret key and then transmitted to each of the key management server and the one or more trusted devices through the communication module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A secret key encryption and restoration method in a device, comprising:
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receiving, by the device, each restoration information from a key management server and one or more trusted devices in response to a request for restoration of a secret key of a user; and performing, by the device, restoration of the secret key of which restoration is requested on the basis of the received restoration information, wherein the secret key is generated by the device and then encrypted, and the restoration information is generated corresponding to the secret key and then transmitted to the key management server and the one or more trusted devices. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A key management server that provides secret key encryption and restoration, comprising:
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a communication module; a storage module; a memory that stores a secret key encryption and restoration program; and a processor that executes the program, wherein the processor receives a local key and restoration information from a device and stores them in the storage module according to execution of the program, and the processor transmits any one or more of the local key and the restoration information stored in the storage module to the device in response to a request from the device. - View Dependent Claims (17)
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Specification