(Number ONCE) An arbitrary number that is generated for security purposes such as an initialization vector. A nonce is used only one time in any security session. 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, 12.5 seconds past 5:13pm on 1/18/2012 can only occur once.
Pronounced like the "nons" in "nonsense," nonce is actually an English word meaning "for the present occasion or time." See initialization vector.
Pronounced like the "nons" in "nonsense," nonce is actually an English word meaning "for the present occasion or time." See initialization vector.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
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