def getPubKey(self, dg15):
"""
Retrieve the public key in PEM format from the dataGroup15
@return: A PEM reprensation of the public key
@rtype: A string
@raise ActiveAuthenticationException: I{The parameter type is not valid, must be a dataGroup15 object}: The parameter dg15 is not set or invalid.
@raise ActiveAuthenticationException: I{The public key could not be recovered from the DG15}: Is open SSL installed?
"""
if type(dg15) != type(datagroup.DataGroup15(None)):
raise ActiveAuthenticationException(
"The parameter type is not valid, must be a dataGroup15 object"
)
return self._openssl.retrieveRsaPubKey(dg15.body)
def algorithm(self, dg15):
"""
Return the algorithm name used to store the signature
@return: A string from the OID dictionnary.
@raise ActiveAuthenticationException: I{Unsupported algorithm}: The algorithm does not exist in the OID enumeration.
@raise ActiveAuthenticationException: I{The parameter type is not valid, must be a dataGroup15 object}: The parameter dg15 is not set or invalid.
"""
if type(dg15) != type(datagroup.DataGroup15(None)):
raise ActiveAuthenticationException(
"The parameter type is not valid, must be a dataGroup15 object"
)
algo = ""
try:
spec = self._asn1Parse()
algo = spec.getComponentByName('algorithm').getComponentByName(
'algorithm').prettyPrint()
return OID[algo]
except KeyError:
raise ActiveAuthenticationException("Unsupported algorithm: " +
algo)
except Exception as msg:
raise ActiveAuthenticationException(
"Active Authentication not supported: ", msg)
