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Doc Bug #70615 72-character password limit
Submitted: 2015-10-01 17:52 UTC Modified: 2015-10-07 06:50 UTC
From: dave at qccareerschool dot com Assigned: sobak (profile)
Status: Closed Package: *General Issues
PHP Version: 5.6.13 OS:
Private report: No CVE-ID: None
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From: dave at qccareerschool dot com
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 [2015-10-01 17:52 UTC] dave at qccareerschool dot com 
Description:
------------
---
From manual page: http://www.php.net/function.password-hash
---

>Caution
>Using the PASSWORD_BCRYPT for the algo parameter, will result in the password parameter being truncated to a maximum length of 72 characters.

Since PASSWORD_DEFAULT is currently set to PASSWORD_BCRYPT, does using PASSWORD_DEFAULT for the algo paramater _also_ result in a truncated password? It's not entirely clear. Maybe the section should be reworded to 

>Caution
>Using bcrypt will result in the password parameter being truncated to a maximum length of 72 characters.

or perhaps

>Caution
>Using PASSWORD_BCRYPT (and, by extension, PASSWORD_DEFAULT) for the algo parameter will result in the password parameter being truncated to a maximum length of 72 characters.

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 [2015-10-06 08:13 UTC] sobak@php.net 
I would say that docs are clear. Current form is good, because we won't have to change the documentation once PASSWORD_DEFAULT value will change. Maybe:

> Using the PASSWORD_BCRYPT as the algorithm, will result in the password parameter being truncated to a maximum length of 72 characters.

is better? Does removing explitic corelation with function parameter make it more readable in any way?
 [2015-10-06 13:14 UTC] dave at qccareerschool dot com 
>Using the PASSWORD_BCRYPT as the algorithm, will result in the password parameter being truncated to a maximum length of 72 characters.

Oh yes this addresses the issue as I saw it.
 [2015-10-07 06:49 UTC] sobak@php.net 
Automatic comment from SVN on behalf of sobak
Revision: http://svn.php.net/viewvc/?view=revision&revision=337962
Log: Make the caution more clear (closes bug #70615)
 [2015-10-07 06:50 UTC] sobak@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: sobak
 
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