def hashPassphrase(self, authProtocol, privKey):
if authProtocol == hmacmd5.HmacMd5.serviceID:
hashAlgo = md5
elif authProtocol == hmacsha.HmacSha.serviceID:
hashAlgo = sha1
elif authProtocol in hmacsha2.HmacSha2.hashAlgorithms:
hashAlgo = hmacsha2.HmacSha2.hashAlgorithms[authProtocol]
else:
raise error.ProtocolError('Unknown auth protocol %s' %
(authProtocol, ))
return localkey.hashPassphrase(privKey, hashAlgo)
def hashPassphrase(self, authProtocol, privKey):
if authProtocol == hmacmd5.HmacMd5.SERVICE_ID:
hashAlgo = md5
elif authProtocol == hmacsha.HmacSha.SERVICE_ID:
hashAlgo = sha1
elif authProtocol in hmacsha2.HmacSha2.HASH_ALGORITHM:
hashAlgo = hmacsha2.HmacSha2.HASH_ALGORITHM[authProtocol]
else:
raise error.ProtocolError('Unknown auth protocol %s' %
(authProtocol, ))
return localkey.hashPassphrase(privKey, hashAlgo)
def hashPassphrase(self, authProtocol, privKey):
if authProtocol == hmacmd5.HmacMd5.SERVICE_ID:
hashAlgo = md5
elif authProtocol == hmacsha.HmacSha.SERVICE_ID:
hashAlgo = sha1
elif authProtocol in hmacsha2.HmacSha2.HASH_ALGORITHM:
hashAlgo = hmacsha2.HmacSha2.HASH_ALGORITHM[authProtocol]
else:
raise error.ProtocolError(
'Unknown auth protocol %s' % (authProtocol,))
return localkey.hashPassphrase(privKey, hashAlgo)
def localizeKey(self, authProtocol, privKey, snmpEngineID):
if authProtocol == hmacmd5.HmacMd5.serviceID:
hashAlgo = md5
elif authProtocol == hmacsha.HmacSha.serviceID:
hashAlgo = sha1
elif authProtocol in hmacsha2.HmacSha2.hashAlgorithms:
hashAlgo = hmacsha2.HmacSha2.hashAlgorithms[authProtocol]
else:
raise error.ProtocolError('Unknown auth protocol %s' %
(authProtocol, ))
localPrivKey = localkey.localizeKey(privKey, snmpEngineID, hashAlgo)
# now extend this key if too short by repeating steps that includes the hashPassphrase step
while len(localPrivKey) < self.keySize:
# this is the difference between reeder and bluementhal
newKey = localkey.hashPassphrase(localPrivKey, hashAlgo)
localPrivKey += localkey.localizeKey(newKey, snmpEngineID,
hashAlgo)
return localPrivKey[:self.keySize]
def localizeKey(self, authProtocol, privKey, snmpEngineID):
if authProtocol == hmacmd5.HmacMd5.SERVICE_ID:
hashAlgo = md5
elif authProtocol == hmacsha.HmacSha.SERVICE_ID:
hashAlgo = sha1
elif authProtocol in hmacsha2.HmacSha2.HASH_ALGORITHM:
hashAlgo = hmacsha2.HmacSha2.HASH_ALGORITHM[authProtocol]
else:
raise error.ProtocolError(
'Unknown auth protocol %s' % (authProtocol,))
localPrivKey = localkey.localizeKey(privKey, snmpEngineID, hashAlgo)
# now extend this key if too short by repeating steps that includes the hashPassphrase step
while len(localPrivKey) < self.KEY_SIZE:
# this is the difference between reeder and bluementhal
newKey = localkey.hashPassphrase(localPrivKey, hashAlgo)
localPrivKey += localkey.localizeKey(newKey, snmpEngineID, hashAlgo)
return localPrivKey[:self.KEY_SIZE]
def hashPassphrase(self, authKey):
return localkey.hashPassphrase(authKey, self._hashAlgo)
def hashPassphrase(self, authKey):
return localkey.hashPassphrase(authKey, self._hashAlgo)
