January 9, 2017 10:55 AM Subscribe
The Barbie Typewriter has a hidden built-in cryptographic capability. Specifically, four alphabet substitution cipher modes that were explained in the manual for the original Mehano electronic typewriter that served as the basis for the Barbie Typewriter. However: As it was probably thought that secret writing would not appeal to girls, the coding/decoding facilities were omitted from the [Barbie Typewriter] manual. Nevertheless, these facilities can still be accessed if you know how to activate them. Via Bruce Schneier.
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