Definition of nonce

Definition of nonce
  1. nonce Noun The one or single occasion; the present reason or purpose (now only in "for the nonce").
  2. nonce Noun A nonce word.
  3. nonce Noun A number, usually generated randomly or from the time, used once in a cryptographic protocol, to prevent replay attacks.
  4. nonce Adjective denoting something occurring once.
  5. nonce Noun A sex offender, "especially" of children; a paedophile.
  6. nonce Noun A stupid or worthless person.
  7. nonce Noun A datum constructed so as to be unique to a particular message in a stream, in order to prevent replay attacks.
  8. nonce Noun In a security engineering context, a value used only once.
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