Intentionally use weak server key

Stavros Tsolakos stsolakos at gmail.com
Thu Dec 20 12:50:22 EET 2018


On 20/12/2018 12:37, Marc Roos wrote:
>  
> You have to create your own ca, and then create the certificate. I doubt 
> if you will be able to find companies like DigiCert or Comodo to do 
> this. 
> 
> If you want, I can try sign it with our own 'internal' CA. The only 
> thing you have to do is of course adding our CA to your ca bundle but 
> that is very easy in CentOS7
> 

Thank you, Marc.

We created our own CA and certificates just fine. The problem is that
SSL does not seem to like them giving the error I mentioned in the
previous message:

dovecot: imap-login: Error: SSL: Stacked error: error:04075070:rsa
routines:RSA_sign:digest too big for rsa key

What would an SSL+Dovecot expert do if this error was encountered? A
1024 bit key works just fine but we have to stick to 256.


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