Kim Davies kjd

kjd / fetch_root_zone.py

Last active March 11, 2026 08:18

Fetch the root zone, validating it with DNSSEC and ZONEMD

	#!/usr/bin/env python3
	# /// script
	# dependencies = ['dnspython', 'cryptography', 'certifi']
	# ///
	"""Fetch, validate, and save the current DNS root zone.

	Downloads the root zone from IANA, validates DNSSEC signatures on the
	ZONEMD record against IANA trust anchors, verifies the zone digest, and
	writes the result to root.zone in the current directory.

kjd / psl_missing_tlds.py

Last active August 30, 2022 23:27

Which TLDs are not in the Public Suffix List?

	#!/usr/bin/env python3

	import requests, idna

	PUBLIC_SUFFIX_URL = 'https://publicsuffix.org/list/public_suffix_list.dat'
	DELEGATED_TLDS_URL = 'https://data.iana.org/TLD/tlds-alpha-by-domain.txt'

	current_suffixes = [x for x in requests.get(PUBLIC_SUFFIX_URL).text.split('\n') if x and not x.startswith('//')]
	current_tlds = [idna.decode(x) for x in requests.get(DELEGATED_TLDS_URL).text.split('\n') if x and not x.startswith('#')]

kjd / cctld_flags.py

Created June 16, 2017 16:49

ccTLD to flags with Emoji

kjd / gist:0b94d8cc3c36a4dd54cd

Created August 16, 2014 00:52

keybase.md

	### Keybase proof

	I hereby claim:

	* I am kjd on github.
	* I am kjd (https://keybase.io/kjd) on keybase.
	* I have a public key whose fingerprint is E6D9 BAAD 8BE6 9E14 F383 7E49 D9B1 54C1 4A6C 23DC

	To claim this, I am signing this object:

kjd / gist:137507

Created June 29, 2009 07:08

	#!/usr/bin/env python
	#
	# Base 58 function used by Flickr e.g. photo id 2360374815 becomes flic.kr/p/4Azxcv

	def base58(i):

	chars = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ'
	o = ''

	while (1):