Produces string of random byte of given length.
| public static randomBytes ( integer $len ) : string | ||
| $len | integer | length of requested string |
| 리턴 | string | RAW random binary string |
/**
* Generates a secret key for given hash function, returns RAW key or false
* if function is not supported
*
* @param string $func hash function (sha1 or sha256)
* @return mixed
*/
protected function _genSecret($func)
{
if ($func == 'sha1') {
$macLen = 20;
/* 160 bit */
} else {
if ($func == 'sha256') {
$macLen = 32;
/* 256 bit */
} else {
return false;
}
}
return Zend_OpenId::randomBytes($macLen);
}
/**
* testing testRedirect
*
*/
public function testRandomBytes()
{
$this->assertSame( '', Zend_OpenId::randomBytes(0) );
$x = Zend_OpenId::randomBytes(1);
$this->assertTrue( is_string($x) );
$this->assertSame( 1, strlen($x) );
$x = Zend_OpenId::randomBytes(1024);
$this->assertTrue( is_string($x) );
$this->assertSame( 1024, strlen($x) );
}
