Bug #77156 [NEW]: Useless warning for AEAD

From: obreham at gmail dot com Operating system: Windows PHP version: 7.1.24 Package: OpenSSL related Bug Type: Bug Bug description:Useless warning for AEAD Description: ------------ PHP version: 7.1.9 The documentation for openssl_encrypt() indicates that the default &$tag = NULL, which should be true for any case. But if a $tag is deliberately passed - even when set to NULL - with a cipher that does not support AEAD, a warning is triggered. This warning is not even mentioned in the documentation. There are no needs for this warning, especially when it is the default value (NULL). The function does set the $tag to NULL (no matter its initial value) and the correct encrypted data is returned. Nothing unexpected happens. As an aside, there is also a typo in the error message, it should read "does not" and not "doesn not". Test script: --------------- $tag = null; $encrypted = openssl_encrypt( 'data', 'aes-256-ctr', 'password', 0, '1234567812345467', $tag ); var_dump($tag, $encrypted); Expected result: ---------------- NULL string(8) "/fQItQ==" Actual result: -------------- Warning: openssl_encrypt(): The authenticated tag cannot be provided for cipher that doesn not support AEAD in C:\wamp\www\test\test.php on line 8 NULL string(8) "/fQItQ==" -- Edit bug report at https://bugs.php.net/bug.php?id=77156&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77156&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77156&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77156&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77156&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77156&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77156&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77156&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77156&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77156&r=support Expected behavior: https://bugs.php.net/fix.php?id=77156&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77156&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77156&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77156&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77156&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77156&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77156&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77156&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77156&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77156&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77156&r=mysqlcfg