nonce


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nonce

(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."
References in periodicals archive ?
In considering the effects of the stress pattern of a similar real word, the two categories of vowel-final nonce words differed only in the quality of the final vowel.
Mr Bennett added: "You knew precisely what the word 'nonce' meant.
Fix a block cipher E : [K.sub.e] x [{0, 1}.sup.n] [right arrow] [{0, 1}.sup.n] and an [epsilon]-AXU hash function H : [K.sub.h] x [{0, 1}.sup.*] x [{0, 1}.sup.n] [right arrow] [{0, 1}.sup.n]; the encryption algorithm of OGCM-1 is described as E : K x N x H x M [right arrow] C x T, where K = [K.sup.2.sub.e] x [K.sub.h] = [{0, l}.sup.k] is the key space, N = [{0, l}.sup.l] is the nonce space, H [subset not equal to] [{0, l}.sup.*] is the associated data space, M [subset not equal to] [{0, l}.sup.*] is the plaintext space, C [subset not equal to] [{0, l}.sup.*] is the ciphertext space, and T = [{0, l}.sup.[tau]] is the tag space.
And if no web-based fact checking is possible, then one can--indeed, one needs to--make up new stories, something we might call "nonce fictions," about the child as new and unexpected details are introduced.
If it does not hold, the smart card aborts this request; Otherwise, [U.sub.i] computes [DID.sub.i]=h(H_[PW*.sub.i][parallel]X[s*.sub.i])[direct sum]h(X[s*.sub.i] [parallel]R[N.sub.i][parallel][T.sub.i]), [mathematical expression not reproducible] and [v.sub.i]= R[N.sub.i][direct sum]X[s*.sub.i], where R[N.sub.i] is a nonce and [T.sub.i] the current timestamp.
The vulnerabilities are scheduled to be formally presented in a talk titled Key Reinstallation Attacks: Forcing Nonce Reuse in WPA2 scheduled for November 1 at the ACM Conference on Computer and Communications Security in Dallas.
Using the nonce information stored in the UDB, the attackers were able to "mint" their own nonces, allowing them to access user data without having to log in with a password.
After verifying freshness of the nonce, the TC signs both the nonce and the measurement list with its private endorsement key.
Once receiving the request, the Cloud Platform generates a random nonce N1 and transmits it to [DV.sub.i].
Counting nonce OED quotes, the highest dictionary AV is 1118 for the 'word' zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz (43z) under the headword Z.
Johnson has been spat at and also faces cat-calls of "nonce".