Merge pull request #2303 from bauerj/ksk-2017
Add KSK-2017 to dnssec trust anchors and accept either of the two
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2323abb769
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@ -185,9 +185,13 @@ dns.dnssec.validate = dns.dnssec._validate
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from util import print_error
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# hard-coded root KSK
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root_KSK = dns.rrset.from_text('.', 15202, 'IN', 'DNSKEY', '257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0=')
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# hard-coded trust anchors (root KSKs)
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trust_anchors = [
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# KSK-2017:
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dns.rrset.from_text('.', 1 , 'IN', 'DNSKEY', '257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU='),
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# KSK-2010:
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dns.rrset.from_text('.', 15202, 'IN', 'DNSKEY', '257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0='),
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]
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def check_query(ns, sub, _type, keys):
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@ -210,8 +214,18 @@ def check_query(ns, sub, _type, keys):
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def get_and_validate(ns, url, _type):
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# get trusted root keys
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root_rrset = check_query(ns, '', dns.rdatatype.DNSKEY, {dns.name.root: root_KSK})
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# get trusted root key
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root_rrset = None
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for dnskey_rr in trust_anchors:
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try:
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# Check if there is a valid signature for the root dnskey
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root_rrset = check_query(ns, '', dns.rdatatype.DNSKEY, {dns.name.root: dnskey_rr})
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break
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except dns.dnssec.ValidationFailure:
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# It's OK as long as one key validates
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continue
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if not root_rrset:
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raise dns.dnssec.ValidationFailure('None of the trust anchors found in DNS')
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keys = {dns.name.root: root_rrset}
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# top-down verification
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parts = url.split('.')
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