Cryptographic Primitives

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Large and complex cryptographic systems are generally comprised of a combination of simple operations, primitives. Distinguished among them are:

  • Substitution
  • Transposition
  • Split/Concatenation
  • bitwise operations (between two bit strings)

    Virtually all symmetric ciphers are constructed with the design motif of a series of primitives wherein the output of one primitive operation serves as input to the other.

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