Short Overview: Substitution-permutation networks are the basis for almost all modern symmetric cryptography. RSA is widespread on the Internet, and uses large prime numbers - but how does it work?

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Substitution-permutation networks are the basis for almost all modern symmetric cryptography. RSA is widespread on the Internet, and uses large prime numbers - but how does it work? Keeping data anonymous seems easy, but keeping identities separate is a big problem.

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  • Substitution-permutation networks are the basis for almost all modern symmetric cryptography.
  • RSA is widespread on the Internet, and uses large prime numbers - but how does it work?
  • Keeping data anonymous seems easy, but keeping identities separate is a big problem.
  • With data leaks becoming common, people are concerned about protecting their own
  • End to end encryption, government ministers are again talking about stopping it.

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