Verification of authenticity of goods by use of random numbers
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United States of America Patent
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Oct 16, 2007
Issued Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Jul 21, 1997
priority date (Note) -
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status (Latency Note)
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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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