[특허]Methods for accessing content based on a session ticket

Methods for accessing content based on a session ticket 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-021/22 H04L-009/28 H04L-009/16 H04K-001/00
출원번호	US-0300306 (2011-11-18)
등록번호	US-8533807 (2013-09-10)
발명자 / 주소	Jogand-Coulomb, Fabrice Tanik, Haluk Kent Rasizade, Oktay
출원인 / 주소	SanDisk Technologies Inc.
대리인 / 주소	Brinks Hofer Gilson & Lione
인용정보	피인용 횟수 : 0 인용 특허 : 46

초록 ▼

A method for accessing content stored on a memory device is provided. In this method, a request to access the content is transmitted and a session ticket is received. The session ticket includes a parameter used to decrypt the content and the session ticket is generated based on a variable that is c

대표청구항 ▼

1. A method for accessing content stored on a memory device, comprising: generating a session ticket by encrypting a parameter associated with the cryptographic key with a variable that has a value associated with a session and that changes value at different sessions;providing the session ticket to a host computing device;receiving the session ticket and a request to access the content from the host computing device;attempting to extract the parameter associated with the cryptographic key from the session ticket by decrypting the session ticket with the variable, wherein if the session has not changed, the value of the variable has not changed, and the parameter associated with the cryptographic key is extracted from the session ticket; and if the parameter associated with the cryptographic key is extracted from the session ticket: obtaining the cryptographic key based on the parameter,decrypting the content using the cryptographic key, andsending the content to the host computing device. 2. The method of claim 1, wherein the parameter is a cryptographic nonce, the cryptographic nonce being used to generate a cryptographic key. 3. The method of claim 1, wherein the variable is a number. 4. The method of claim 3, wherein the number is configured to change randomly. 5. The method of claim 1, wherein the session spans for a period of time. 6. The method of claim 1, wherein the session expires when the host computing device is restarted. 7. The method of claim 1, wherein the session expires when the memory device is decoupled from the host computing device. 8. A memory device comprising: a memory; anda controller in communication with the memory, wherein the controller is configured to: generate a session ticket by encrypting a parameter associated with the cryptographic key with a variable that has a value associated with a session and that changes value at different sessions;provide the session ticket to a host computing device;receive the session ticket and a request to access the content from the host computing device;attempt to extract the parameter associated with the cryptographic key from the session ticket by decrypting the session ticket with the variable, wherein if the session has not changed, the value of the variable has not changed, and the parameter associated with the cryptographic key is extracted from the session ticket; and if the parameter associated with the cryptographic key is extracted from the session ticket: obtain the cryptographic key based on the parameter,decrypt the content using the cryptographic key, andsend the content to the host computing device. 9. The memory device of claim 8, wherein the parameter is a cryptographic nonce, the cryptographic nonce being used to generate a cryptographic key. 10. The memory device of claim 8, wherein the variable is a number. 11. The memory device of claim 10, wherein the number is configured to change randomly. 12. The memory device of claim 8, wherein the session spans for a period of time. 13. The memory device of claim 8, wherein the session expires when the host computing device is restarted. 14. The memory device of claim 8, wherein the session expires when the memory device is decoupled from the host computing device.

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A	생활필수품
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Methods for accessing content based on a session ticket 원문보기

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Methods for accessing content based on a session ticket 원문보기

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