Key Encapsulation Mechanism

(Redirected from KEM)

Key Encapsulation Mechanism, also known as KEM, is a triple of algorithms and a corresponding key space , a ciphertext space with

  1. The algorithm takes a public parameter as an input and returns a public and secret-key pair ().
  2. The probabilistic (encapsulation) algorithms takes as an input and returns a ciphertext and a key .
  3. The deterministic (decapsulation) algorithm takes as inputs and returns a key , with denoting as a failure.