nonce

Definition from Wiktionary, a free dictionary

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Contents 1 English 1.1 Etymology 1 1.1.1 Pronunciation 1.1.2 Noun 1.1.2.1 Translations 1.1.2.2 Derived terms 1.2 Etymology 2 1.2.1 Noun 2 French 2.1 Pronunciation 2.2 Noun

[edit] English

[edit] Etymology 1

From a misdivision in Middle English of þan anes (“‘the one (occasion, instance)’”).

[edit] Pronunciation

• IPA: /nɒns/
• Rhymes: -ɒns

[edit] Noun

nonce (plural nonces)

1. The one or single occasion; the present reason or purpose (now only in for the nonce).

   That will do for the nonce, but we'll need a better answer for the long term.

2. (lexicography) A nonce word.

   I had thought that the term was a nonce, but it seems as if it's been picked up by other authors.

3. (British, slang, pejorative) A sex offender, especially of children; a paedophile.

   That bloke who lives at number 53A is a nonce!

4. (British, slang) A stupid or worthless person.

[edit] Translations

[edit] Derived terms

• for the nonce
• nonce word

[edit] Etymology 2

Abbreviation of number used once.

[edit] Noun

nonce (plural nonces)

1. (cryptography) A datum constructed so as to be unique to a particular message in a stream, in order to prevent replay attacks.

   In this protocol we use the serial number of the message as a nonce.

2. (cryptography) In a security engineering context, a value used only once.
   • 1999, Network Working Group, RFC 2617 -- HTTP Authentication: Basic and Digest Access Authentication, The Internet Society, page 22,

     The information gained by the eavesdropper would permit a replay attack, but only with a request for the same document, and even that may be limited by the server's choice of nonce.

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[edit] French

[edit] Pronunciation

• IPA: /nɔ̃s/, SAMPA: /nO~s/

[edit] Noun

nonce m. (plural nonces)

1. nuncio