Verification of authenticity of goods by use of random numbers

Details Verification of authenticity of goods by use of random numbers Verification of authenticity of goods by use of random numbers

2007-10-16

2007-10-16

Moise, Emmanuel L. (Department: 2137)

Cryptography

Having production of printed copy

C235S462010, C713S179000, C705S028000, C705S051000, C705S052000, C705S058000, C705S062000, C705S408000

Reexamination Certificate

active

09489171

ABSTRACT:
Method of verifying authenticity of goods uses combination codes that have a random portion and a non-random portion that includes at least a secret portion that is encrypted. The combination codes are encrypted and may be applied to goods and checked to determine authenticity of goods; the secret portion may be encrypted with a public key and can be decrypted, for example, using a corresponding private key. The authenticity may include whether or not a tax or duty has been paid. The checking may include checking, e.g., viewing the non-random portion of the decrypted combination code to determine whether it is the same as the non-random portion used to compose the combination code.

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