Origin of nonceMiddle English (for the) nones, formed by syllabic merging ; from (for then) ones, literally , the once: then is the dative singular of the def. article (grammar)
Origin of nonceFrom Middle English for the nones, for the occasion, alteration of for then anes : for, for; see for + then : neuter dative sing. of the; see the1 + ones, anes, once; see once.
- 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.
- (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.
- (computing) A number, usually generated randomly or from the time, used once in a cryptographic protocol, to prevent replay attacks.
- denoting something occurring once.
From a misdivision in Middle English of Ã¾an anes (“the one (occasion, instance)").
See Wikipedia article for further discussion.
- (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.
- (cryptography) In a security engineering context, a value used only once.
Contraction of number used once
nonce - Computer Definition
(Number ONCE) An arbitrary number that is generated to provide a unique identification or for security purposes such as when logging in to a network (see initialization vector). The nonce is used only once and not repeated. Although random and pseudo-random numbers theoretically produce unique numbers, there is the possibility that the same number can be generated more than once. However, if a very large, true random number is used, the chances are extremely small. A perfect nonce is the time of day; for example, 12.53 seconds past 5:13pm on 1/18/2012 can only occur once. Pronounced like the "nons" in "nonsense," nonce is actually an English word that means "for the present occasion or time."