The History of Cryptography

Page #73 of Chapter: Crypto-for-the-rest-of-us

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Technology-wise we distinguish three epochs:

  • Paper & Pencil Cryptography
  • Electro-mechanical Cryptography
  • Computer based Cryptography

    Application-wise we distinguish three periods:

  • The battlefield period: use for military, politics, mystery and espionage.
  • The civil period: use for banking, and by major civil institutions
  • The popular period: wide spread daily use by the masses.
    Read more in A Brief History of Cryptography.
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