Statistical appearance cannot establish cryptographic unpredictability when generator state is small, duplicated or recoverable.
Random-looking is not unpredictable.
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nLabs
nLabs is the research practice at Neodata, in Montevideo, Uruguay. Corrections and questions: nlabs@neodata.com.uy
Posts by nLabs
The other three questions.
Most cryptography education for children begins and ends with confidentiality. Integrity, authentication and credentials can be modelled with simple roles and objects, even as age-assurance systems make those properties part of children’s digital lives.
Cryptography can start before algebra.
Children can learn the questions cryptography answers before they can learn the mathematics behind its algorithms. Existing school materials teach secrecy well, but leave integrity, authentication, identity and trust comparatively unexplored.