openSUSE admin

Hi,

This seems a letsencrypt side issue, probalby not possible for us to
fix easily.

Ciao, Marcus
On Tue, Feb 14, 2023 at 08:47:43AM +0000, redmine@opensuse.org wrote:

[openSUSE Tracker]
Issue #124457 has been reported by meissner@suse.de.

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tickets #124457: 2048 bit RSA intermediate at download.opensuse.org
https://progress.opensuse.org/issues/124457

• Author: meissner@suse.de
• Status: New
• Priority: Normal
• Assignee:
• Category:

* Target version: ¶

hi,

we received this:
https://bugzilla.suse.com/show_bug.cgi?id=1208210

It seems genuine:

Certificate chain
0 s:CN = opensuse.org
i:C = US, O = Let's Encrypt, CN = R3
a:PKEY: rsaEncryption, 4096 (bit); sigalg: RSA-SHA256
v:NotBefore: Jan 9 00:42:31 2023 GMT; NotAfter: Apr 9 00:42:30 2023 GMT
1 s:C = US, O = Let's Encrypt, CN = R3
i:C = US, O = Internet Security Research Group, CN = ISRG Root X1
a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
v:NotBefore: Sep 4 00:00:00 2020 GMT; NotAfter: Sep 15 16:00:00 2025 GMT
2 s:C = US, O = Internet Security Research Group, CN = ISRG Root X1
i:O = Digital Signature Trust Co., CN = DST Root CA X3
a:PKEY: rsaEncryption, 4096 (bit); sigalg: RSA-SHA256
v:NotBefore: Jan 20 19:14:03 2021 GMT; NotAfter: Sep 30 18:14:03 2024 GMT

Can this be fixed?

Ciao, Marcus

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Marcus Meissner (he/him), Distinguished Engineer / Senior Project Manager Security
SUSE Software Solutions Germany GmbH, Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Martje Boudien Moerman, HRB 36809, AG Nuernberg

Most we could do is switch to Let's Encrypt's E1 (ECDSA) intermediate. Then our full chain will be ECDSA. But it's considered "experimental".

If it's really important and urgent to fix this, we could consider moving to a different (commercial) cert provider.

Oh, and Marcus tells me that there is another option:

Since Let's Encrypt has ECDSA P-384 intermediate CAs in their chain of trust, we could solve this problem by switching to an ECDSA P-384 certificate. (Because P-384 is still supported in the FUTURE profile.)