RandomCryptoInteger (Function)

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RandomCryptoInteger (Function)

In french: HasardCryptoEntier

Returns a random number that can be used with the cryptographic technologies.

Example

// Récupération d'un entier compris entre 0 et 2 147 483 647
ResHasard = RandomCryptoInteger()
// Récupération d'un entier compris entre 0 et 34
ResHasard = RandomCryptoInteger(34)
// Récupération d'un entier compris entre 7 et 21
ResHasard = RandomCryptoInteger(7, 21)

Syntax

Calculating a random number Hide the details

<Result> = RandomCryptoInteger()

<Result>: Integer

Random integer (included between 0 and 2 147 483 647),
-1 if an error occurred.

Calculating a random number with an upper bound Hide the details

<Result> = RandomCryptoInteger(<Upper bound>)

<Result>: Integer

Random integer (included between 0 and the upper bound, inclusive)
-1 if an error occurred.

<Upper bound>: Integer

Upper bound of returned number (included between 1 and 2 147 483 647).

Calculating a random number with a lower bound and an upper bound Hide the details

<Result> = RandomCryptoInteger(<Lower bound> , <Upper bound>)

<Result>: Integer

Random integer (included between the lower and upper bounds, inclusive),
-1 if an error occurred.

<Lower bound>: Integer

Minimum bounds of the number returned (between 0 and 2,147,483,647)

<Upper bound>: Integer

Upper bound of returned number (included between 1 and 2 147 483 647)

Remarks

The first call to the function can be quite long (about one second) because initializing the random mechanism is very complex.
InitRandom has no effect on the result of RandomCryptoInteger.

Business / UI classification: Neutral code

Component: wd300std.dll