Certificate authority

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hi

i have ca installed on win server 2008 r2

i need upgrade ca using sha2 using below command

certutil -setreg ca\csp\cnghashalgorithm sha256
my question if upgrade ca happen certificate using sha1 , stop working or still working , can renew use sha2 anytime?

mcp mcsa mcse mct mcts ccna

hello,

sorry late reply.

i have there no official documents state no impact on existing certificates after upgrading ca sha2.

as long certificate , previous root certificate valid, certificate remain valid. if still have concern this, may test in lab environment before upgrading.

in addition, here blog how upgrade, please refer it:

http://www.cusoon.fr/update-microsoft-certificate-authorities-to-use-the-sha-2-hashing-algorithm-2/

regards,

yan li

please remember mark replies answers if , unmark them if provide no help. if have feedback technet subscriber support, contact tnmff@microsoft.com.



Windows Server  >  Windows Server 2012 General



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