amtauto.co.uk

Full SSL Certificate Signing Request (CSR) in DNS

$ dig TXT amtauto.co.uk

;; QUESTION SECTION:

;amtauto.co.uk. IN TXT


;; ANSWER SECTION:

amtauto.co.uk. 3600 IN TXT "-----BEGIN CERTIFICATE REQUEST----- MIICWTCCAUMCAQAwGDEWMBQGA1UEAwwNYW10YXV0by5jby51azCCASIwDQYJKoZI hvcNAQEBBQADggEPADCCAQoCggEBAOm3FgXojmp9sgdgO+sLtK4SCLUXdAkB3FUB [...truncated...] -----END CERTIFI…"

A full Certificate Signing Request (CSR) was pasted into the DNS TXT field — chunked across multiple records due to the 255-char limit. The CSR itself is public information (it contains only the public key), but it is a spectacular example of using DNS as a general-purpose text storage system.

-----BEGIN CERTIFICATE REQUEST----- MIICWTCCAUMCAQAwGDEWMBQGA1UEAwwNYW10YXV0by5jby51azCCASIwDQYJKoZI hvcNAQEBBQADggEPADCCAQoCggEBAOm3FgXojmp9sgdgO+sLtK4SCLUXdAkB3FUB [...truncated...] -----END CERTIFICATE REQUEST-----