Bug#1093139: Certbot should reuse existing key pair when available

I should have included a reference to Peter Gutmann's book on the subject of key continuity schemes. The book provides a treatment under the section Key Continuity Management. Here is the reference: Peter Gutmann, Engineering Security (April 2014), pp. 375-384,

Bug#1093139: Certbot should reuse existing key pair when available

Package: certbot Version: 2.1.0-4 Tags: bookworm Let's Encrypt is switching to short-lived certificates in an attempt to manage revocations more efficiently.[0,1] The thinking is, by ensuring the certificate expires quickly, relying parties will have less reliance on revocations lists in case a C