Re: Certificate Renew protocol

From: Daniel Roesler <diafygi@xxxxxxxxx>
To: Kaiduan Xie <kaiduanx@xxxxxxxxx>
CC: "Let's Encrypt Client Development" <client-dev@xxxxxxxxxxxxxxx>, "Let's Encrypt CA Development" <ca-dev@xxxxxxxxxxxxxxx>
Date: Mon, 15 Feb 2016 09:26:04 -0800
Why ads?
For acme-tiny, we just run the same procedure as getting a new
certificate. You can even use the same CSR as before.

POST /acme/new-authz (request new challenges for the domain)
POST /path/to/challenge (notify of challenges met)
GET /path/to/challenge (wait for the challenge to turn valid)
...repeat as needed for multiple domains

POST /acme/new-cert (get a signed cert)

Daniel

On Mon, Feb 15, 2016 at 7:00 AM, Kaiduan Xie <kaiduanx@xxxxxxxxx> wrote:
Hi all,

What is the protocol/procedure used under the hood to renew a Letsencrypt
certificate? I obtained an Letsencrypt certificate on Dec of 2015 with my
own client (not the Python client provided by Letsencrypt), the certificate
is going to expire soon.

Unfortunately the IETF draft
https://tools.ietf.org/html/draft-barnes-acme-04 does not explain the renew
procedure and protocol.

Now the following informations are available after obtaining a Letsencrypt
certificate.

1. Account RSA key pair
2. RSA key pair for Letsencrypt issued certificate
3. CSR for Letsencrypt issued certificate
4. Letsencrypt issued certificate
5. URL for Letsencrypt issued certificate
6. Domain name

Can someone elaborate the renew protocol in details? How the above
informations are used to renew a certificate?

Thanks a lot for the help,

/Kaiduan

--
You received this message because you are subscribed to the Google Groups
"Let's Encrypt Client Development" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to client-dev+unsubscribe@xxxxxxxxxxxxxxx.
To post to this group, send email to client-dev@xxxxxxxxxxxxxxx.
To view this discussion on the web visit
https://groups.google.com/a/letsencrypt.org/d/msgid/client-dev/CACKRbQfxRDCb2Q_et5%3D2%2ByH5KS2wnobO5BOViz1PE%3Dynky6POg%40mail.gmail.com.

-- 
You received this message because you are subscribed to the Google Groups "Let's Encrypt Client Development" group.
To unsubscribe from this group and stop receiving emails from it, send an email to client-dev+unsubscribe@xxxxxxxxxxxxxxx.
To post to this group, send email to client-dev@xxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/a/letsencrypt.org/d/msgid/client-dev/CA%2B65Osox-tvEBck9rH%2Bj8US6v5mCfkdA%2BM3bqfNKfn9usVtpgA%40mail.gmail.com.

Why ads?