Turning off 3DES breaks SSL

[HD2Pct]

Hi-

In my classic ASP application, submission to A.net seemed to grind to halt when they "retired" 3DES. Some on this forum apparently fixed the problem by disabling 3DES. I tried that approach but when I did that, I couldn't access any SSL pages on my site.

Thoughts on this?

Thanks

Dave

[NexusSoftware]

What version of Windows are you running? How did you disable 3DES?

For 2003 - 2008, check out the post at: https://community.developer.authorize.net/t5/Integration-and-Testing/Underlying-connection-was-close...

[HD2Pct]

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@NexusSoftware wrote:

What version of Windows are you running? How did you disable 3DES?

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It's Server 2003 R2.

I used IISCrypto, the utility from Nartac software. Figured it was marginally safer than a direct edit of the Registry. I have heard that others have had success with it.

Thoughts?

[NexusSoftware]

IISCrypto can work pretty well. Do you have a live URL to check out?

There is a lack of support for the SHA2 family of hash algorithms on Windows Server 2003. A potential fix is: https://support.microsoft.com/en-us/help/938397/applications-that-use-the-cryptography-api-cannot-va...

[HD2Pct]

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@NexusSoftware wrote:

IISCrypto can work pretty well. Do you have a live URL to check out?

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You mean an SSL page on our site for scanning purposes? Can I PM you?

Again, keep in mind that we never had an issue with A.net until thie 3DES retirement thing,

[NexusSoftware]

Yes, an SSL page on your site. Not necessarlity for scanning but to inspect and see what might be causing the issue. Yes, you can PM the URL.

[HD2Pct]

I'm sorry -I feel dumb but I have looked at menus all over this forum and don't see how to send a PM

[NexusSoftware]

If you click on a user's profile, there is a link "Send this user a private message".