Re: [cryptopp-users] Website certificate renewal

2018-07-24 Thread Jeffrey Walton
On Tue, Jul 24, 2018 at 11:20 AM, Weikeng Chen  wrote:
> Seems that recertifying the existing public key is kind of... non-standard
> practice?
>
> What would be the benefit of "key continuity"?

Key continuity has proven to be a more desirable security property
than random key changes. Clients can pin a server's public key and
obtain assurances without relying on third parties.

Certificate and public key pinning is the security control that
revealed Dignotar's compromise in 2011. Public key pinning is a little
easier in the mobile age because of short-lived certificates.

Also see Peter Gutmann's Engineering Security,
https://www.cs.auckland.ac.nz/~pgut001/pubs/book.pdf

Jeff

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Re: [cryptopp-users] Website certificate renewal

2018-07-24 Thread Weikeng Chen
Seems that recertifying the existing public key is kind of... non-standard
practice?

What would be the benefit of "key continuity"?

On Tue, Jul 24, 2018 at 8:03 AM, Jeffrey Walton  wrote:

> Hi Everyone,
>
> We got a renewal notice for the website's certificate. I was going to try
> Let's Encrypt and recertify the existing public key.
>
> The existing cert is from Comodo. We have to ping some folks out of band
> for the cert and I want to avoid troubling them.
>
> The existing public key has not been compromised (to the best of my
> knowledge) so I believe we can maintain key continuity.
>
> Does anyone have any objections?
>
> Jeff
>
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Weikeng Chen @ 795 Soda Hall

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[cryptopp-users] Website certificate renewal

2018-07-24 Thread Jeffrey Walton
Hi Everyone,

We got a renewal notice for the website's certificate. I was going to try 
Let's Encrypt and recertify the existing public key.

The existing cert is from Comodo. We have to ping some folks out of band 
for the cert and I want to avoid troubling them.

The existing public key has not been compromised (to the best of my 
knowledge) so I believe we can maintain key continuity.

Does anyone have any objections?

Jeff

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information about Crypto++ and this group is available at 
http://www.cryptopp.com and 
http://groups.google.com/forum/#!forum/cryptopp-users.
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