Question

How to check SSL version

Asked by: wunyu

Hello,

How do I check what version of SSL my IIS is using?  Thanks.

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Asked On
2005-02-10 at 11:59:11ID21310122
Tags

iis

,

ssl

,

version

,

check

Topic

Microsoft IIS Web Server

Participating Experts
3
Points
50
Comments
3

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Answers

 

by: Dave_DietzPosted on 2005-02-10 at 13:09:53ID: 13280124

IIS will negotiate an SSL version and cipher suite with the client - it isn't one version or another that IIS supports.

IIS supports SSL2.0, SSL3.0, PCT1.0 and TLS1.0 by default with various DES, RC2, RC4, Skipjack and Triple DES cipher suites.

You can look under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL at the Ciphers and Protocols keys to see what is there.

If a given cipher or protocol has an ENABLED value of 0 that item will not be used.  If it is not 0 it will be used, although they may be used in specific combinations i.e. not all protocols use all cipher suites.

Dave Dietz

 

by: EjayHirePosted on 2009-03-09 at 14:53:02ID: 23841390

Adding to the response above, you can test it from a remote linux box.

the command for sslv2 is
openssl s_client -connect yourserver.com:443 -ssl2

If that succeeds, you have v2 enabled.  

the command for sslv3 is
openssl s_client -connect yourserver.com:443 -ssl3

If that succeeds, you have v3 enabled.  

HTH

 

by: HershPosted on 2010-07-21 at 06:42:49ID: 33255283

How can i check whether SSL meets AES 256 bit encryption standard?

20120131-EE-VQP-002

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