Invention Grant
US08687809B2 System and method for decryption of content including disconnected encryption chains
有权
用于解密内容的系统和方法,包括断开的加密链
- Patent Title: System and method for decryption of content including disconnected encryption chains
- Patent Title (中): 用于解密内容的系统和方法,包括断开的加密链
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Application No.: US13118143Application Date: 2011-05-27
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Publication No.: US08687809B2Publication Date: 2014-04-01
- Inventor: Viswanathan Swaminathan , Saayan Mitra
- Applicant: Viswanathan Swaminathan , Saayan Mitra
- Applicant Address: US CA San Jose
- Assignee: Adobe Systems Incorporated
- Current Assignee: Adobe Systems Incorporated
- Current Assignee Address: US CA San Jose
- Agency: Wolfe-SBMC
- Main IPC: H04L9/00
- IPC: H04L9/00

Abstract:
Embodiments may include receiving a protected version of content including different encryption chains including encrypted blocks of content. The protected version of content may include decryption information for decrypting the encrypted chains; the decryption information may include initialization vectors that are distinct from the content. Embodiments may also include performing chained decryption on a particular sequence of data blocks including multiple encryption chains from the protected version of the content and at least some of the initialization vectors. Some of the initialization vectors may be positioned between the encryption chains within the particular sequence such that during the chained decryption the initialization vectors are decrypted in sequence with the data blocks of the encryption chains. The chained decryption may result in a sequence of decrypted data blocks including decrypted initialization vectors. Embodiments may include generating a decrypted version of the content by excluding the decrypted initialization vectors from that sequence.
Public/Granted literature
- US20130129079A1 System And Method For Decryption Of Content Including Disconnected Encryption Chains Public/Granted day:2013-05-23
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