[Openstack] [Cinder-backup]why use sha256 instead md5 in chunk based backup-driver
yang, xing
Xing.Yang at dell.com
Tue Apr 11 15:53:20 UTC 2017
Hi,
Please see the following article regarding the risks of using MD5.
http://searchsecurity.techtarget.com/news/4500270165/MD5-vulnerability-renews-calls-for-faster-SHA-256-transition
Thanks,
Xing
________________________________
From: yuliyang at cmss.chinamobile.com [yuliyang at cmss.chinamobile.com]
Sent: Tuesday, April 11, 2017 3:52 AM
To: openstack
Subject: [Openstack] [Cinder-backup]why use sha256 instead md5 in chunk based backup-driver
hi,all
why we use sha256 instead md5 in chunk based backup-driver , in the current file chunkeddriver.py, we have object_sha256['sha256s'] list to store all the sha256 value of sha_block_size data , why we do not use md5 ,md5 is faster compute than sha256,and we all use the md5 value in _backup_chunk too, so we just need to compute one time and used in two diffrent place,it save much time
________________________________
yuliyang at cmss.chinamobile.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20170411/cc6208d6/attachment.html>
More information about the Openstack
mailing list