How to Identify Who We Are Talking to?

Page #45 of Chapter: Crypto-for-the-rest-of-us

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Cyber identities are most easy to fake, one is rarely too sure of the identity of his conversation partner.

Identities are determined based on:

  • explicit display (password, PIN, key)
  • implicit display (non-repeat identifier)
  • Multi parametric identification.

    Determination of identity is probabilistic: happens when the probability to be wrong is sufficiently small (never zero).

    It's good practice to employ a mutual identification procedure, to insure each of the identity of the other.

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