Invention Grant
US08359473B1 System and method for digital rights management using digital signatures
有权
使用数字签名进行数字版权管理的系统和方法
- Patent Title: System and method for digital rights management using digital signatures
- Patent Title (中): 使用数字签名进行数字版权管理的系统和方法
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Application No.: US12364411Application Date: 2009-02-02
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Publication No.: US08359473B1Publication Date: 2013-01-22
- Inventor: Peter Sorotokin , James L. Lester
- Applicant: Peter Sorotokin , James L. Lester
- Applicant Address: US CA San Jose
- Assignee: Adobe Systems Incorporated
- Current Assignee: Adobe Systems Incorporated
- Current Assignee Address: US CA San Jose
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Robert C. Kowert
- Main IPC: G06F21/00
- IPC: G06F21/00

Abstract:
Various embodiments of a system and method for digital rights management using digital signatures are described. Various embodiments may include a digital rights management component configured to receive license data including user information and an encrypted decryption key. The digital rights management component may also receive a digital signature and encrypted content data. The digital rights management component may, in response to determining that the digital signature is a valid digital signature of the license data, generate on a device, a message including the user information. The digital rights management component may also perform a key derivation function on the user information to generate a result, generate a decryption key by decrypting the encrypted decryption key with the result of the key derivation function, and decrypt the encrypted content data with the generated decryption key to generate unencrypted content data.
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