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Sec Bug #55244 openssl_encrypt() / openssl_decrypt() truncate keys
Submitted: 2011-07-19 18:20 UTC Modified: 2011-07-23 21:01 UTC
From: scottmac@php.net Assigned: scottmac (profile)
Status: Closed Package: OpenSSL related
PHP Version: Irrelevant OS: All
Private report: No CVE-ID: None
 [2011-07-19 18:20 UTC] scottmac@php.net
Description:
------------
The key length for variable length ciphers will always be the OpenSSL default. The 
larger key is just truncated. This makes our encryption algorithms incompatible 
with others implementations unless it happens to match the OpenSSL default.

Expected result:
----------------
mcrypt / openssl output to match with a 56 byte key using blowfish

Actual result:
--------------
Only matches with a 16 byte key, larger one produces different results.

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History

AllCommentsChangesGit/SVN commitsRelated reports
 [2011-07-19 18:20 UTC] scottmac@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: scottmac
 [2011-07-19 18:20 UTC] scottmac@php.net
This was fixed in 313453
 [2011-07-23 21:01 UTC] scottmac@php.net
applied for a CVE still nothing.
 
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