323 lines
13 KiB
Python
323 lines
13 KiB
Python
#!/usr/bin/env python
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import os
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import base64
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from saml2 import sigver, make_instance
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from saml2 import utils, class_name
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from saml2 import time_util
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from saml2 import saml, samlp
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import xmldsig as ds
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from py.test import raises
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SIGNED = "saml_signed.xml"
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UNSIGNED = "saml_unsigned.xml"
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FALSE_SIGNED = "saml_false_signed.xml"
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SIMPLE_SAML_PHP_RESPONSE = "simplesamlphp_authnresponse.xml"
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PUB_KEY = "test.pem"
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PRIV_KEY = "test.key"
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def _eq(l1,l2):
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return set(l1) == set(l2)
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SIGNED_VALUE= """AS1kHHtA4eTOU2XLTWhLMSJQ6V+TSDymRoTF78CqjrYURNLk9wjdPjAReNn9eykv
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ryFiHNk0p9wMBknha5pH8aeCI/LmcVhLa5xteGZrtE/Udh5vv8z4kRQX51Uz/5x8
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ToiobGw83MEW6A0dRUn0O20NBMMTaFZZPXye7RvVlHY="""
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DIGEST_VALUE = "WFRXmImfoO3M6JOLE6BGGpU9Ud0="
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def get_xmlsec():
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for path in os.environ["PATH"].split(":"):
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fil = os.path.join(path, "xmlsec1")
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if os.access(fil,os.X_OK):
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return fil
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raise Exception("Can't find xmlsec1")
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CERT1 = """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"""
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CERT_SSP = """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"""
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from pyasn1.codec.der import decoder
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def test_cert_from_instance_1():
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xml_response = open(SIGNED).read()
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response = samlp.response_from_string(xml_response)
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assertion = response.assertion[0]
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certs = sigver.cert_from_instance(assertion)
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assert len(certs) == 1
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assert certs[0] == CERT1
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def test_cert_from_instance_ssp():
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xml_response = open(SIMPLE_SAML_PHP_RESPONSE).read()
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response = samlp.response_from_string(xml_response)
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assertion = response.assertion[0]
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certs = sigver.cert_from_instance(assertion)
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assert len(certs) == 1
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print certs[0]
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der = base64.b64decode(certs[0])
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print str(decoder.decode(der)).replace('.',"\n.")
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assert decoder.decode(der)
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assert certs[0] == CERT_SSP
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class TestSecurity():
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def setup_class(self):
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self.sec = sigver.SecurityContext(get_xmlsec(), PRIV_KEY, "pem",
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PUB_KEY, "pem", debug=1)
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def test_verify_1(self):
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xml_response = open(SIGNED).read()
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response = self.sec.correctly_signed_response(xml_response)
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assert response
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def test_non_verify_1(self):
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""" unsigned is OK """
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xml_response = open(UNSIGNED).read()
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response = self.sec.correctly_signed_response(xml_response)
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assert response
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def test_non_verify_2(self):
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xml_response = open(FALSE_SIGNED).read()
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raises(sigver.SignatureError,self.sec.correctly_signed_response,
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xml_response)
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def test_sign_assertion(self):
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ass = make_instance(saml.Assertion, {
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"version": "2.0",
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"id": "11111",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11111"),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Foo",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bar",
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}
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]
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}
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})
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sign_ass = self.sec.sign_assertion_using_xmlsec("%s" % ass)
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sass = saml.assertion_from_string(sign_ass)
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print sass
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assert _eq(sass.keyswv(), ['attribute_statement', 'issue_instant',
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'version', 'signature', 'id'])
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assert sass.version == "2.0"
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assert sass.id == "11111"
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assert time_util.str_to_time(sass.issue_instant)
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sig = sass.signature
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assert sig.signature_value.text == SIGNED_VALUE
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assert len(sig.signed_info.reference) == 1
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assert len(sig.signed_info.reference[0].digest_value) == 1
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assert sig.signed_info.reference[0].digest_value[0].text == DIGEST_VALUE
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def test_sign_response(self):
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assertion = {
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"version": "2.0",
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"id": "11111",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11111"),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Foo",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bar",
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}
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]
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}
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}
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s_response = sigver.signed_instance_factory(samlp.Response, {
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"assertion" : assertion,
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"id": "22222",
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"signature": sigver.pre_signature_part("22222"),
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}, self.sec)
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assert s_response != None
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print s_response
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print
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sass = s_response.assertion[0]
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print sass
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assert _eq(sass.keyswv(), ['attribute_statement', 'issue_instant',
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'version', 'signature', 'id'])
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assert sass.version == "2.0"
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assert sass.id == "11111"
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assert time_util.str_to_time(sass.issue_instant)
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sig = sass.signature
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assert sig.signature_value.text == """AS1kHHtA4eTOU2XLTWhLMSJQ6V+TSDymRoTF78CqjrYURNLk9wjdPjAReNn9eykv\nryFiHNk0p9wMBknha5pH8aeCI/LmcVhLa5xteGZrtE/Udh5vv8z4kRQX51Uz/5x8\nToiobGw83MEW6A0dRUn0O20NBMMTaFZZPXye7RvVlHY="""
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assert len(sig.signed_info.reference) == 1
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assert len(sig.signed_info.reference[0].digest_value) == 1
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digest = sig.signed_info.reference[0].digest_value[0].text
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assert digest == """WFRXmImfoO3M6JOLE6BGGpU9Ud0="""
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def test_sign_response_2(self):
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assertion1 = {
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"version": "2.0",
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"id": "11111",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11111").copy(),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Foo",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bar",
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}
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]
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}
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}
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assertion2 = {
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"version": "2.0",
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"id": "11122",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11122").copy(),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Fox",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bear",
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}
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]
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}
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}
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s_response = sigver.signed_instance_factory(samlp.Response, {
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"assertion" : [assertion1,assertion2],
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"id": "22233",
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"signature": sigver.pre_signature_part("22233"),
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}, self.sec)
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assert s_response != None
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print s_response
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print
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sass = s_response.assertion[0]
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print sass
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assert _eq(sass.keyswv(), ['attribute_statement', 'issue_instant',
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'version', 'signature', 'id'])
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assert sass.version == "2.0"
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assert sass.id == "11111"
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assert time_util.str_to_time(sass.issue_instant)
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sig = sass.signature
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assert sig.signature_value.text == """AS1kHHtA4eTOU2XLTWhLMSJQ6V+TSDymRoTF78CqjrYURNLk9wjdPjAReNn9eykv\nryFiHNk0p9wMBknha5pH8aeCI/LmcVhLa5xteGZrtE/Udh5vv8z4kRQX51Uz/5x8\nToiobGw83MEW6A0dRUn0O20NBMMTaFZZPXye7RvVlHY="""
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assert len(sig.signed_info.reference) == 1
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assert len(sig.signed_info.reference[0].digest_value) == 1
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digest = sig.signed_info.reference[0].digest_value[0].text
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assert digest == """WFRXmImfoO3M6JOLE6BGGpU9Ud0="""
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def test_sign_verify(self):
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assertion = {
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"version": "2.0",
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"id": "11111",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11111"),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Foo",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bar",
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}
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]
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}
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}
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s_response = sigver.signed_instance_factory(samlp.Response, {
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"assertion" : assertion,
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"id": "22222",
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"signature": sigver.pre_signature_part("22222"),
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}, self.sec)
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res = self.sec.verify_signature("%s" % s_response,
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node_name=class_name(samlp.Response()))
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print res
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assert res
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def test_sign_verify_with_cert_from_instance(self):
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assertion = {
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"version": "2.0",
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"id": "11111",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11111"),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Foo",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bar",
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}
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]
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}
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}
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s_response = sigver.signed_instance_factory(samlp.Response, {
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"assertion" : assertion,
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"id": "22222",
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"signature": sigver.pre_signature_part("22222",
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"".join(open(self.sec.cert_file).read().split("\n")[1:-2])),
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}, self.sec)
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ci = sigver.cert_from_instance(s_response)
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print ci
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res = self.sec._check_signature("%s" % s_response, s_response,
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class_name(s_response))
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assert res == s_response
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def test_exception_sign_verify_with_cert_from_instance(self):
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assertion = {
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"version": "2.0",
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"id": "11111",
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"issue_instant": "2009-10-30T13:20:28Z",
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"signature": sigver.pre_signature_part("11111"),
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"attribute_statement": {
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"attribute": [{
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"friendly_name": "surName",
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"attribute_value": "Foo",
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},
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{
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"friendly_name": "givenName",
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"attribute_value": "Bar",
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}
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]
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}
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}
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s_response = sigver.signed_instance_factory(samlp.Response, {
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"assertion" : assertion,
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"id": "22222",
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"signature": sigver.pre_signature_part("22222",
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"".join(open(self.sec.cert_file).read().split("\n")[1:-2])),
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}, self.sec)
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# Change something that should make everything fail
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s_response.id = "23456"
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raises(sigver.SignatureError, self.sec._check_signature,
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"%s" % s_response, s_response, class_name(s_response))
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