Invention Grant
US08135955B2 Device and method for detecting a manipulation of an information signal
有权
用于检测信息信号的操纵的装置和方法
- Patent Title: Device and method for detecting a manipulation of an information signal
- Patent Title (中): 用于检测信息信号的操纵的装置和方法
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Application No.: US12958253Application Date: 2010-12-01
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Publication No.: US08135955B2Publication Date: 2012-03-13
- Inventor: Ralph Kulessa , Jörg Pickel , Stefan Krägeloh , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
- Applicant: Ralph Kulessa , Jörg Pickel , Stefan Krägeloh , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Glenn Patent Group
- Agent Michael A. Glenn
- Priority: DE102004054549 20041111
- Main IPC: H04L9/00
- IPC: H04L9/00 ; H04L9/32 ; G06F7/04
Abstract:
The present invention relates to a device for detecting a manipulation of an information signal, having an extractor for extracting an information signal component characteristic for the information signal from the information signal, an encrypter for encrypting the information signal component to obtain an encrypted signal, and a comparator for comparing the encrypted signal to a reference signal, wherein the reference signal is an encrypted representation of a non-manipulated reference signal component of a reference information signal to detect the manipulation.
Public/Granted literature
- US20110099386A1 DEVICE AND METHOD FOR DETECTING A MANIPULATION OF AN INFORMATION SIGNAL Public/Granted day:2011-04-28
Information query
