A data carrier having security mark and apparatus for handling such data carrier

P.T. Tuyls; J.P.M.G. Linnartz

A data carrier having security mark and apparatus for handling such data carrier

P.T. Tuyls (Inventor), J.P.M.G. Linnartz (Inventor)

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Abstract

The present invention relates to a data carrier (1) having a security mark (2) in which a code is embedded, which security mark is of an optical type. For instance, the mark is of the POWF (Physical One Way Functions) type which gives a speckle pattern for a specific light. From this speckle pattern it is possible to determine a code from which it is possible to get an authentication mark or a decrypting key. In an alternative, it is possible to use a hologram from which a key or authentication mark can be derived by using a unique spatial modulation filter at the level of the analysis of the security mark.

Original language	English
Patent number	WO2005048256
Publication status	Published - 26 May 2005

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title = "A data carrier having security mark and apparatus for handling such data carrier",

abstract = "The present invention relates to a data carrier (1) having a security mark (2) in which a code is embedded, which security mark is of an optical type. For instance, the mark is of the POWF (Physical One Way Functions) type which gives a speckle pattern for a specific light. From this speckle pattern it is possible to determine a code from which it is possible to get an authentication mark or a decrypting key. In an alternative, it is possible to use a hologram from which a key or authentication mark can be derived by using a unique spatial modulation filter at the level of the analysis of the security mark.",

author = "P.T. Tuyls and J.P.M.G. Linnartz",

year = "2005",

month = may,

day = "26",

language = "English",

type = "Patent",

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T1 - A data carrier having security mark and apparatus for handling such data carrier

AU - Tuyls, P.T.

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PY - 2005/5/26

Y1 - 2005/5/26

N2 - The present invention relates to a data carrier (1) having a security mark (2) in which a code is embedded, which security mark is of an optical type. For instance, the mark is of the POWF (Physical One Way Functions) type which gives a speckle pattern for a specific light. From this speckle pattern it is possible to determine a code from which it is possible to get an authentication mark or a decrypting key. In an alternative, it is possible to use a hologram from which a key or authentication mark can be derived by using a unique spatial modulation filter at the level of the analysis of the security mark.

AB - The present invention relates to a data carrier (1) having a security mark (2) in which a code is embedded, which security mark is of an optical type. For instance, the mark is of the POWF (Physical One Way Functions) type which gives a speckle pattern for a specific light. From this speckle pattern it is possible to determine a code from which it is possible to get an authentication mark or a decrypting key. In an alternative, it is possible to use a hologram from which a key or authentication mark can be derived by using a unique spatial modulation filter at the level of the analysis of the security mark.

UR - http://v3.espacenet.com/publicationDetails/biblio?DB=EPODOC&adjacent=true&locale=nl_nl&FT=D&date=20050526&CC=WO&NR=2005048256A2&KC=A2

M3 - Patent publication

M1 - WO2005048256

ER -

A data carrier having security mark and apparatus for handling such data carrier

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