It Won't Be an "Open" Marriage

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Cory Doctorow’s Cipher Wheel Wedding Rings

Cory Doctorow wanted a secret decoder wedding ring, and he asked me to help design it.
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[N]ow it’s time to create some cryptographic applications for the rings. Cory and I are holding an open contest for the cleverest application.

Be sure to drink your Ovaltine.

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