Patent US2267692A successfully refreshed from Google Patents.
Patent EP0599558A2 successfully refreshed from Google Patents.
EP0599558A2
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EP
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Secure identification card and method and apparatus for producing and authenticating same
Assignee: Pitney Bowes Inc
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Filing: 1993-11-19
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Granted: —
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Expires: 2013-11-19
Abstract
Abstract An identification card and method and apparatus for producing authenticating such an identification card. An object or other entity for which the identification card will evidence identity, status or characteristics is scanned to produce a digital signal which is compressed, encrypted, and coded as a two dimensional barcode or as some other appropriate form of coding, which is incorporated into one portion of the identification card. The image is also printed or otherwise embodied onto another portion of the identification card. A text message maybe appended to the signal before it is encrypted and also printed as plain text on the identification card. In one embodiment the signal representing the image is encrypted using a public key encryption system and the key is downloaded from a center. This key maybe changed from time to time to increase security. To facilitate authentication the corresponding decryption key is encrypted with another key and incorporated on the card. To validate the card the coded message is scanned, decoded, decrypted, expanded and displayed. The card may then be authenticated by comparison of the displayed representation of the image and the displayed text message with the image and text message printed on the card.
Inventors
- 👤 James R. Marcus
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 07:54
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07F7/12; G07F7/125
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
159 words
A method of identifying an object, or other entity comprising the steps of: a) scanning said object or other entity to produce a first signal representative of an image of said object or other entity; b) printing said image on a first portion of an identification card; c) encrypting a second signal, comprising a representation of said image, said second signal being derived at least in part from said first signal; d) incorporating a coded representation of said encrypted second signal into a second portion of said identification card; e) reading said coded representation of said second signal from said identification card; f) decoding said second signal; g) decrypting said decoded second signal; h) inputting said decrypted second signal to a display to display said representation of said image; i) comparing said printed image to said displayed second image to validate said card; and j) comparing said printed image to said object or other entity to confirm its identity.
Claim 2
Independent Claim
87 words
A method for producing an identification card, comprising the steps of: a) scanning an object or other entity to produce a first signal representative of an image of said object or other entity; b) printing said image on a first portion of said identification card; c) encrypting a second signal comprising a representation of said image, said second signal being derived at least in part from said first signal; d) incorporating a coded representation of said encrypted second signal into a second portion of said identification card.
Claim 3
Dependent Claim
20 words
A method according to claim 1 or 2 wherein said second signal comprises a compressed form of said first signal.
Claim 4
Dependent Claim
28 words
A method according to claim 1, 2 or 3 wherein said second signal is encrypted using an encryption key, E i , for a public key encryption system.
Claim 5
Independent Claim
36 words
A method according to any preceding claim wherein a decryption key, D i , corresponding to said encryption key, E i , is encrypted with a second encryption key, E₁, for said public key encryption system.
Claim 6
Dependent Claim
29 words
A method according to claim 5 wherein said encrypted decryption key, E₁ [D i ], is appended to said encrypted second signal prior to incorporation into said second portion.
Claim 7
Dependent Claim
28 words
A method according to claim 3 or 6 wherein said representation of said encrypted second signal is incorporated into said second portion as a two dimensional bar code.
Claim 8
Dependent Claim
31 words
A method according to claim 7 wherein decryption of said encrypted second signal comprises the further steps of decrypting said encrypted key, E₁ [D i ] using a decryption key, D₁.
Claim 9
Dependent Claim
26 words
A method according to claim 3 wherein said representation of said encrypted second signal is incorporated into said second portion as a two dimensional bar code.
Claim 10
Dependent Claim
104 words
Apparatus for producing an identification card, comprising: a) scanning means for producing a first signal representative of an image of an object or other entity to be identified by said identification card; b) printing means, responsive to said scanning means, for printing said image on a first portion of said identification card; c) encrypting means for encrypting a second signal, said second signal being derived at least in part from said first signal, and comprising a representation of said image; and d) coding means for incorporating a coded representation of said incryption of said second signal into a second portion of said identification card.
Claim 11
Dependent Claim
26 words
Apparatus according to claim 10 further comprising means for encrypting said second signal using an encryption key, E i , for a public key encryption system.
Claim 12
Dependent Claim
41 words
Apparatus according to claim 11 wherein a decryption key, D i , is encrypted with a second key, E₁, and said encrypted key E₁ [D i ], is appended to said encrypted second signal prior to incorporation into said second portion.
Claim 13
Dependent Claim
30 words
Apparatus according to claims 10, 11 or 12 further comprising means for incorporating said representation of said encrypted second signal into said second portion as a two dimensional bar code.
Claim 14
Dependent Claim
31 words
Apparatus according to any of claims 10-13 further comprising means for receiving said encryption key, E i , and said encrypted decryption key, E₁ [D i ], from a central station.
Claim 15
Independent Claim
123 words
A method for validating an identification card, said card having an image of an object or other entity to be identified on a first portion and a coded representation of an encrypted signal comprising a representation of said image incorporated on a second portion of said card, comprising the steps of: a) reading said coded representation or said signal from said card, b) decoding said coded representation of said signal; c) decrypting said encrypted representation of said signal; and, d) inputting said decrypted representation of said signal to a display for displaying said representation of said image; whereby, e) said card may be validated by comparison of said image on said first portion of said card with said displayed representation of said image.
Claim 16
Dependent Claim
25 words
A method according to claim 15 wherein said encrypted signal is encrypted using an encryption key, E i , for a public key encryption system.
Claim 17
Dependent Claim
99 words
A method according to claim 16 wherein a decryption key, D i corresponding to said key E₁, is encrypted with a second encryption key E₁ for said public key encryption system to form an encrypted decryption key, E₁[D i ], and said encrypted decryption key, E₁[D i ] is appended to said encrypted signal, and wherein said decryption step further comprises the steps of: a) decrypting said encrypted decryption key, E₁[D i ] with a corresponding decryption key, D₁, to recover said decryption key D i ; and, b) decrypting said encrypted signal with said key, D i .
Claim 18
Dependent Claim
133 words
Apparatus for validating an identification card, said card having an image of an object or other entity to be identified on first portion and a coded representation of an encrypted signal compressing a representation of said image incorporated in a second portion of said card, comprising: a) means for reading said coded representation of said signal from said card b) decoding means, responsive to said reading means for decoding said coded representation of said signal; c) decrypting means, responsive to said decoding means, for decrypting said decoded representation of said signal, and, d) display means, responsive to said decrypting means, for displaying said representation of said image; whereby, e) said card may be validated by comparison of said image on said first portion of said card with said displayed representation of said image.
Claim 19
Dependent Claim
25 words
An apparatus according to claim 18 wherein said encrypted signal is encrypted using an encryption key, E i , for a public key encryption system.
Claim 20
Dependent Claim
100 words
Apparatus according to claim 19 wherein a decryption key, D i , corresponding to said key E i , is encrypted with an encryption key E₁ for said public key encryption system to form an encrypted decryption key E₁[D i ], and said encrypted decryption key E₁[D i ] is appended to said encrypted signal, and said decrypting means further comprises: a) means for decrypting said encrypted decryption key, E₁[D i ] with a corresponding decryption key, D₁, to recover said decryption key, D i ; and b) means for decrypting said encrypted signal using said key, D i .
Claim 21
Dependent Claim
44 words
An identification card, comprising: a) a first portion having thereon an image of an object or other entity to be identified by said identification card; and, b) a second portion incorporating an encoded representation of an encrypted signal comprising a representation of said image.
Claim 22
Dependent Claim
25 words
An identification card according to claim 21 wherein said digital signal is encrypted using an encryption key, E i, for a public key encryption system.
Claim 23
Dependent Claim
66 words
An identification card according to claim 22 wherein a decryption key, D i , corresponding to said encryption key, E i , is encrypted with a second encryption key, E₁, for said public key encryption system to produce an encrypted description key, E₁[D i ], and said encrypted decryption key, E₁[D i ], is appended to said digital signal prior to incorporation into said second portion.
Claim 24
Dependent Claim
26 words
An identification card according to claim 23.wherein said representation of said encrypted digital signal is incorporated into said second portion as a two dimensional bar code.
Claim 25
Dependent Claim
27 words
An identification card according to claim 21 wherein said representation of said encrypted digital signal is incorporated into said second portion as a two dimensional bar code.
References Cited (Backward Citations)
No citation records indexed.
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