Active Authentication relies on public key cryptography. It works by working the e-passport proves possession of a private key. The corresponding public key is stored as part of the signed data on the passport. To authenticate, the passport receives an 8-bytes challenge from the reader. It digitally sign it value using it's private key and return the result. The reader can verify the correctness of the response against the public key for the passport.
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How does readers ensure AA?
Active Authentication relies on public key cryptography. It works by working the e-passport proves possession of a private key. The corresponding public key is stored as part of the signed data on the passport. To authenticate, the passport receives an 8-bytes challenge from the reader. It digitally sign it value using it's private key and return the result. The reader can verify the correctness of the response against the public key for the passport.
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