dnsstamps 1.0.1

Create DNS stamps

For general information about DNS stamps please visit https://dnscrypt.info/stamps-specifications

Install

python3 -m pip install --user dnsstamps

Generate DNS stamps

Plain

$ dnsstamp.py plain -s -a 127.0.0.1
Plain DNS stamp
===============

DNSSEC: yes
No logs: no
No filter: no
IP Address: 127.0.0.1

Stamp: sdns://AAEAAAAAAAAACTEyNy4wLjAuMQ

DNSCrypt

First get the public key, if you use dnsdist, you can get it in this way

> printDNSCryptProviderFingerprint("/path/to/your/providerPublic.key")
Provider fingerprint is: CB6A:DC5C:29F9:5510:0B65:BF12:94FE:5684:579A:B349:9CC9:798F:00D0:1BB5:C1A9:A2C7

Then run

$ dnsstamp.py dnscrypt -s -a 127.0.0.1 -n 2.dnscrypt-cert.example.com -k CB6A:DC5C:29F9:5510:0B65:BF12:94FE:5684:579A:B349:9CC9:798F:00D0:1BB5:C1A9:A2C7
DNSCrypt DNS stamp
==================

DNSSEC: yes
No logs: no
No filter: no
IP Address: 127.0.0.1
Public key: CB6A:DC5C:29F9:5510:0B65:BF12:94FE:5684:579A:B349:9CC9:798F:00D0:1BB5:C1A9:A2C7
Provider name: 2.dnscrypt-cert.example.com

Stamp: sdns://AQEAAAAAAAAACTEyNy4wLjAuMSDLatxcKflVEAtlvxKU_laEV5qzSZzJeY8A0Bu1wamixxsyLmRuc2NyeXB0LWNlcnQuZXhhbXBsZS5jb20

DNS over HTTPS

First get your certificate's signed data hash (tbsCertificate)

$ openssl asn1parse -in doh.example.com.chain.pem -out /dev/stdout -noout -strparse 4 | openssl dgst -sha256
(stdin)= 3e1a1a0f6c53f3e97a492d57084b5b9807059ee057ab1505876fd83fda3db838

Then run

$ dnsstamp.py doh -s -a 127.0.0.1 -n doh.example.com -p /dns-query -t 3e1a1a0f6c53f3e97a492d57084b5b9807059ee057ab1505876fd83fda3db838
DoH DNS stamp
=============

DNSSEC: yes
No logs: no
No filter: no
IP Address: 127.0.0.1
Hashes: 3e1a1a0f6c53f3e97a492d57084b5b9807059ee057ab1505876fd83fda3db838
Hostname: doh.example.com
Path: /dns-query
Bootstrap IPs: None

Stamp: sdns://AgEAAAAAAAAACTEyNy4wLjAuMSA-GhoPbFPz6XpJLVcIS1uYBwWe4FerFQWHb9g_2j24OA9kb2guZXhhbXBsZS5jb20KL2Rucy1xdWVyeQ

DNS over TLS

First get your certificate's signed data hash (tbsCertificate)

$ openssl asn1parse -in dot.example.com.chain.pem -out /dev/stdout -noout -strparse 4 | openssl dgst -sha256
(stdin)= 2f1af500a66d4b83760766e41cb1123ebd6b95853afaef3bcdf39cbde3ab30b6

Then run

$ dnsstamp.py dot -s -a 127.0.0.1 -n dot.example.com -t 2f1af500a66d4b83760766e41cb1123ebd6b95853afaef3bcdf39cbde3ab30b6
DoT DNS stamp
=============

DNSSEC: yes
No logs: no
No filter: no
IP Address: 127.0.0.1
Hostname: dot.example.com
Hashes: 2f1af500a66d4b83760766e41cb1123ebd6b95853afaef3bcdf39cbde3ab30b6
Bootstrap IPs: None

Stamp: sdns://AwEAAAAAAAAACTEyNy4wLjAuMSAvGvUApm1Lg3YHZuQcsRI-vWuVhTr67zvN85y946swtg9kb3QuZXhhbXBsZS5jb20

Run tests

python3 -m unittest discover

Build and upload

python3 setup.py sdist bdist_wheel
python3 -m twine upload dist/*