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Comment by thomastjeffery

7 years ago

OK. Maybe not GPG specifically.

But keypairs. Everyone should understand keypairs. They are the basis for all of digital security, and they are really not that difficult.

Symmetric encryption is also popular and ubiquitous. I don't think this can be practically explained to most of the population of non-technical people. Encryption schemes also often use hybrids of symmetric and asymmetric encryption; they are useful for different scenarios.