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use random_bytes(32) which throws for not enought entropy

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This commit is contained in:
Ralf Becker 2020-01-29 11:12:21 +01:00
parent d95894d530
commit cc8258cb3c
1 changed files with 3 additions and 3 deletions
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6
api/src/Csrf.php
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@ -31,6 +31,8 @@ class Csrf
*
* @param mixed $_purpose =true if given it need to be used in validate too! (It must NOT be NULL)
* @return string CSRF token
* @throws Exception\WrongParameter
* @throws \Exception if it was not possible to gather sufficient entropy.
*/
public static function token($_purpose=true)
{
@ -39,9 +41,7 @@ class Csrf
throw new Exception\WrongParameter(__METHOD__.'(NULL) $_purspose must NOT be NULL!');
}
// generate random token (using oppenssl if available otherwise mt_rand based Auth::randomstring)
$token = function_exists('openssl_random_pseudo_bytes') ?
base64_encode(openssl_random_pseudo_bytes(64)) :
Auth::randomstring(64);
$token = base64_encode(random_bytes(32));
// store it in session for later validation
Cache::setSession(__CLASS__, $token, $_purpose);