Slovenia's Maheno corporation manufactured a series of Barbie-branded and white label typewriters for kids, with a hidden feature that allowed their owners to use them to produce messages encrypted with a simple substitution cipher. (more…)
Slovenia's Maheno corporation manufactured a series of Barbie-branded and white label typewriters for kids, with a hidden feature that allowed their owners to use them to produce messages encrypted with a simple substitution cipher. (more…)
