Counterfeit proof ID card having a scrambled facial image

Details Counterfeit proof ID card having a scrambled facial image Counterfeit proof ID card having a scrambled facial image

1989-05-11

1990-11-20

Tarcza, Thomas H.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 25, 380 54, 34082534, 283 77, H04K 100

Patent

active

049724762

ABSTRACT:
A scrambled facial image of an ID card bearer is recorded upon a card and is descrambled only by using the proper descrambling control code assigned to the proper bearer upon verification of the authenticity of the bearer. The pixel scrambling method prevents card duplication, as a reproduced card will unscramble only the image of the proper bearer, and the method inherently prevents producing a card which can be unscrambled by a verifier. Updated scrambling codes are used for newly issued cards from enhanced security. Issue clerk initials are automatically recorded upon the card to deter unlawful card issuance. Also, unscrambled image portions are video recorded for investigation of unlawful use.

REFERENCES:
patent: 3805238 (1974-04-01), Rothfjell
patent: 4590366 (1986-05-01), Rothfjell
patent: 4765656 (1988-08-01), Becker et al.
patent: 4864618 (1989-09-01), Wright et al.
"Magnetic Encoded Photo Credit Card"; IBM Technical Disclosure Bulletin, vol. 21, No. 6; Nov. 1978; J. Kelley.

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