Auth_OpenID_CryptUtil Class Reference

List of all members.

Public Member Functions
	getBytes ($num_bytes)
	randomString ($length, $population=null)

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Detailed Description

Definition at line 26 of file CryptUtil.php.

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Member Function Documentation

Auth_OpenID_CryptUtil::getBytes

(

$

num_bytes

)

Get the specified number of random bytes.

Attempts to use a cryptographically secure (not predictable) source of randomness if available. If there is no high-entropy randomness source available, it will fail. As a last resort, for non-critical systems, define Auth_OpenID_RAND_SOURCE as null, and the code will fall back on a pseudo-random number generator.

Parameters:

int

$num_bytes

The length of the return value

Returns:

string $bytes random bytes

Definition at line 40 of file CryptUtil.php.

Referenced by Auth_OpenID_Signatory\createAssociation(), Auth_OpenID_MathLibrary\rand(), and randomString().

Auth_OpenID_CryptUtil::randomString	(	$	length,
		$	population = null
	)

Produce a string of length random bytes, chosen from chrs. If $chrs is null, the resulting string may contain any characters.

Parameters:

integer	$length	The length of the resulting randomly-generated string
string	$chrs	A string of characters from which to choose to build the new string

Returns:

string $result A string of randomly-chosen characters from $chrs

Definition at line 80 of file CryptUtil.php.

References getBytes().

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The documentation for this class was generated from the following file:

• typo3/sysext/openid/lib/php-openid/Auth/OpenID/CryptUtil.php