Package dns :: Module tsigkeyring
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Source Code for Module dns.tsigkeyring

 1  # Copyright (C) 2003-2007, 2009-2011 Nominum, Inc. 
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15   
16  """A place to store TSIG keys.""" 
17   
18  from dns._compat import maybe_decode, maybe_encode 
19   
20  import base64 
21   
22  import dns.name 
23   
24   
25 -def from_text(textring):
26 """Convert a dictionary containing (textual DNS name, base64 secret) pairs 27 into a binary keyring which has (dns.name.Name, binary secret) pairs. 28 @rtype: dict""" 29 30 keyring = {} 31 for keytext in textring: 32 keyname = dns.name.from_text(keytext) 33 secret = base64.decodestring(maybe_encode(textring[keytext])) 34 keyring[keyname] = secret 35 return keyring
36 37
38 -def to_text(keyring):
39 """Convert a dictionary containing (dns.name.Name, binary secret) pairs 40 into a text keyring which has (textual DNS name, base64 secret) pairs. 41 @rtype: dict""" 42 43 textring = {} 44 for keyname in keyring: 45 keytext = maybe_decode(keyname.to_text()) 46 secret = maybe_decode(base64.encodestring(keyring[keyname])) 47 textring[keytext] = secret 48 return textring
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