/usr/lib/python3/dist-packages/certbot/tests/testdata/csr-san_512.pem is in python3-certbot 0.23.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | -----BEGIN CERTIFICATE REQUEST-----
MIIBbjCCARgCAQAweTELMAkGA1UEBhMCVVMxETAPBgNVBAgMCE1pY2hpZ2FuMRIw
EAYDVQQHDAlBbm4gQXJib3IxDDAKBgNVBAoMA0VGRjEfMB0GA1UECwwWVW5pdmVy
c2l0eSBvZiBNaWNoaWdhbjEUMBIGA1UEAwwLZXhhbXBsZS5jb20wXDANBgkqhkiG
9w0BAQEFAANLADBIAkEArHVztFHtH92ucFJD/N/HW9AsdRsUuHUBBBDlHwNlRd3f
p580rv2+6QWE30cWgdmJS86ObRz6lUTor4R0T+3C5QIDAQABoDowOAYJKoZIhvcN
AQkOMSswKTAnBgNVHREEIDAeggtleGFtcGxlLmNvbYIPd3d3LmV4YW1wbGUuY29t
MA0GCSqGSIb3DQEBCwUAA0EAZGBM8J1rRs7onFgtc76mOeoT1c3v0ZsEmxQfb2Wy
tmReY6X1N4cs38D9VSow+VMRu2LWkKvzS7RUFSaTaeQz1A==
-----END CERTIFICATE REQUEST-----
|