python - 用 Python 加密 SOAP 信封

Question

我正在尝试连接到一个 soap 服务，它希望我的请求使用标准 XML 加密(根据文档)进行加密。我正在使用 Python 请求将请求发送到端点，但不幸的是，我不知道如何从原始请求发送到加密请求。

我有一些从 SoapUI 中提取的示例(如下所示)，它们显示了加密过程前后的请求，但遗憾的是没有描述加密过程本身。我曾尝试使用 py-wsse 来加密信息，但它与所需的格式不匹配。我也曾尝试使用 OpenSSL 来加密来自请求的信息，但我对 Soap 加密的了解还不够多，无法以所需的格式构建它

从原始请求到加密请求的步骤是什么

我的尝试:

import uuid
import base64
import requests
from wsse import encryption

headers = {'SOAPAction': '"urn:CorporateService:activateServiceAgreement"',
                     'Content-Type': 'text/xml; charset=utf-8'}

url= "https://stest.bankconnect.dk/2019/04/04/services/CorporateService?wsdl"
csr_pem = "some generated CSR string without 'Begin' and 'End' tags, any string works for testing"
registration_number = '1234'
funtion_identification = '00123456789'
unique_id = uuid.uuid4().hex
activation_code = '1234123412341234'
path_to_cert = "some_cert.crt"

data = f"""<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/">
    <soap-env:Header>
        <wsse:Security mustUnderstand="false"
            xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
            xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"/>
        <ns0:technicalAddress xmlns:ns0="http://bankconnect.dk/schema/2014">
            <ns0:ipAddress>{{http://bankconnect.dk/schema/2014}}technicalAddress</ns0:ipAddress>
        </ns0:technicalAddress>
        <ns1:activationHeader xmlns:ns1="http://bankconnect.dk/schema/2014">
            <ns1:organisationIdentification>
                <ns1:mainRegistrationNumber>{registration_number}</ns1:mainRegistrationNumber>
                <ns1:isoCountryCode>DK</ns1:isoCountryCode>
            </ns1:organisationIdentification>
            <ns1:functionIdentification>{funtion_identification}</ns1:functionIdentification>
            <ns1:erpInformation>
                <ns1:erpsystem>{{http://bankconnect.dk/schema/2014}}erpInformation</ns1:erpsystem>
            </ns1:erpInformation>
            <ns1:endToEndMessageId>{unique_id}</ns1:endToEndMessageId>
            <ns1:createDateTime>2021-12-07T11:08:25</ns1:createDateTime>
        </ns1:activationHeader>
    </soap-env:Header>
    <soap-env:Body>
        <ns0:activateServiceAgreement xmlns:ns0="http://bankconnect.dk/schema/2014">
            <ns0:activationAgreement>
                <ns0:activationCode>{base64.b64encode(str.encode(activation_code))}</ns0:activationCode>
                <ns0:certificateRequest>{csr_pem}=</ns0:certificateRequest>
            </ns0:activationAgreement>
        </ns0:activateServiceAgreement>
    </soap-env:Body>
</soap-env:Envelope>
"""

encryptedData = encryption.encrypt(data, path_to_cert) # this outputs a different format than needed (example below)

requests.post(url,data=encryptedData.decode(), headers=headers) # the request will fail as data is not in the correct format

我尝试生成的加密 SOAP(为了便于阅读而格式化):

<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/">
    <soap-env:Header>
        <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
            xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
            <wsse:BinarySecurityToken EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3" wsu:Id="id-70b626c1-3e8f-4827-abc2-a3004f7f00ef">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</wsse:BinarySecurityToken>
            <xenc:EncryptedKey xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
                <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p"/>
                <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
                    <wsse:SecurityTokenReference wsse:TokenType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3">
                        <wsse:Reference ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3" URI="#id-70b626c1-3e8f-4827-abc2-a3004f7f00ef"/>
                    </wsse:SecurityTokenReference>
                </ds:KeyInfo>
                <xenc:CipherData>
                    <xenc:CipherValue>L8/N579SnH/XPWsVvI8nVEvW67bFoV1wEaoRM3Bvpc0fS6Ihay90aonrvc8AJdEH 73z/UoUizrLhT4KPkqr3pLJ3UO42aKf6PRXyJ1pYaN5SbZH75kdL7VpiGBNjhaFK Zzn5SpIQElIjxrvVjbyDkTKzlzLaU8qzCvR08PHEgs452uIjDKuSEIPt49uAhExI /d7fRMGgXn9PpiH4jJGO/GfMUV3V2nNL/eB9jn00Dlz7vfEqeYwBaoegzq3ZyC25 nTSYXOkGvFU7dQAmrQ4QYEqYhmr3Sey3fEzcyb0lAPhZ3JBwDI5oo5GxbVXa+xVQ IL85p8Xrw0niGvLGbspXTQ==</xenc:CipherValue>
                </xenc:CipherData>
                <xenc:ReferenceList>
                    <xenc:DataReference URI="#id-a1155f0f-8c75-4de3-9bc2-c26e23ea1873"/>
                </xenc:ReferenceList>
            </xenc:EncryptedKey>
        </wsse:Security>
        <ns0:technicalAddress xmlns:ns0="http://bankconnect.dk/schema/2014">
            <ns0:ipAddress>{http://bankconnect.dk/schema/2014}technicalAddress</ns0:ipAddress>
        </ns0:technicalAddress>
        <ns1:activationHeader xmlns:ns1="http://bankconnect.dk/schema/2014">
            <ns1:organisationIdentification>
                <ns1:mainRegistrationNumber>1234</ns1:mainRegistrationNumber>
                <ns1:isoCountryCode>DK</ns1:isoCountryCode>
            </ns1:organisationIdentification>
            <ns1:functionIdentification>00123456789</ns1:functionIdentification>
            <ns1:erpInformation>
                <ns1:erpsystem>{http://bankconnect.dk/schema/2014}erpInformation</ns1:erpsystem>
            </ns1:erpInformation>
            <ns1:endToEndMessageId>some-uuid</ns1:endToEndMessageId>
            <ns1:createDateTime>2021-12-06T15:18:25</ns1:createDateTime>
        </ns1:activationHeader>
    </soap-env:Header>
    <soap-env:Body>
        <xenc:EncryptedData xmlns:xenc="http://www.w3.org/2001/04/xmlenc#"
            xmlns:ns0="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" Type="http://www.w3.org/2001/04/xmlenc#Element" ns0:Id="id-a1155f0f-8c75-4de3-9bc2-c26e23ea1873">
            <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc"/>
            <xenc:CipherData>
                <xenc:CipherValue>VBocX0ZNKgJ98E/1mZLQY6gJaFDIdxh+lLy38xyau3GYzT8G88XqVff7hSbBRCnt Z5zXa3sNhMl4e88GuuWnMrTe4j8QbcXuXrxVjCuZ+6TnKG1YIJ5t3L8myt+VI3+5 4FI15xQAOqATdxbtwE89xV0/n4szsxJ0nczBTK8pm/WL5rjks0Ks5o+F3wkBqwcF w+YYEE8zPD6ejlmAs+fye0gjsBAKF96RAe63kvT7gHrHKkj2GlEI5f2+bp7ebe2V U5PokQso22WBYidA8FdTBu9GGc8YD6gbTPq93GpOM1f6AV0fPd7vQCTw1d1F73HZ 9+NTZzPXqJb5RAPGSMEHlGgH3TYXOD7eBUgj0aZClGU5JsouusTmC7eiXWd5ys+b bN6LLkHvv6pPnAnm5Z7rgAK67sra1kCyFKgY3FHMOgE764MoRjBWroEmJokpnQ/q Do+D4iLbAsaGsVhdNZ+CelGUCTskvuIYHon33mdy5PHeMb0FUe8c3SDHqgyh0efp rcYUiT236jzpwBYP+ZgWzET2Mh2mdw8yVcUeyectayT6LhS8rqxExrQvMS120JST BY2pW+8WJVdu69/WplqktUCtOmYjdHEGgb63u2d139O2N5w+4ebSJxHEAzOgnCwg kpOQcD6hJm7UW0FG3AZTTcBAJfPCgtfyEPH+MGssIEFaeb9rsRGxbb/n8gfCyOjF d3LHYLezTRHCnbwqP4411BGK/1QUeX+ZI7W9/EHfPesYueCEoUZa0arInMlUdxeS nShBi3xnOo/NQNbwpUXmLTAnpg/GYyk9on2iIhFAKagevKB6XT3eN5QTpeQYYbcR KZSAE1KRhMJJWYSzElXUfZizHAAsIb470xc4MBDL6EKBZYt4E/7jPGgJO8/IbVL3 FaPjdEfx2Fo3G1FQfpzVMFav04RKCFZsGJ7mnBQnlWgraOa+hRsRed/koTBBxZ5n Dy9XQvIiko6nmXpcAQaUcNEx6/YJaOO5BXVHfS5QiTaJ7Ohe/20d7+fnivZgW7Es nm0tJS9yYX0IsE8c1Blft/T3iTOqsXuxPbrpE6TLy+9eINSqjzKDduwfx64IWju+ Bho13i71rKFZCVDvBMRwuFJwjZBYRMZc42MGrhBVMGDvyob0iHTrOQr3INDWYRSH DWYRxxboSU+xcgPAB6eXQfj8O2LWuGZSjhdt9p5dj75vc1OCGSrweZ/QXulXyxdK y2hkb01qUUoEFqdnr+gHouDWWyUgaO/tYF2eNkVMu/jagAtAZL6Yg5KApV/TzwIr ZsrxrCxgAls0oaiTJeoxk9O+WSzCiU9NBBQ30OfKii8Do1yDjFmqVkl4JPCusCXY Efq1na1OIwHnfCmOSMPk7uojztixxbgvhF5q4yv0gIGMqx/FutE42dIpXU5lqkbT OonGguy85c1q9R3Fx6E8T4GwumpO7wAxnbEu2MCl7mm0PeWGVRg6f5H+SnWslL96 88aYIBo+7wwnkC9JVCB8Sl/6eGYum58OrP1Hp01VqgkdMcrRwiyQPPN//Yk/N5oS cb30w2AdeKPMbjihDnfRCiRSzWQfBs7Fat1MWxp80H6gqnaVq0Paf/buMpMJYa9Z hqNGFtMUJkMd+PTconOxF5a1SUWwAj0Op/J24mOd3XFy39HZnZb67rWzNATuh34p 2G+XInAmKvkxBcKR94HGfajFAE1794q2L9O6mIIiZufuKnZM0JGoQeNEdP6TETX3 G5zl7F0Xn4iZgEFPRkMREf+66+CxSwxWnmi4m8W1SHXLmmuP5pyS8wPt+q4Lg3Jd 5G54J3he3g5dyhaJVj6WD1bPgwQkN+ha4aPl+2gVNLh79u7CL/uJWwBqrKfy1a64 mJbTWRAM4aNnPIcixdWxrHYM+J7rzBTmYSANEcdhCfv534Kjd8ZH8vL/47I8C+wG VV0x6P+yJCH63UZ4tQScxMdMPKl+INmEqI1bnpq9/vXnSTkoezY2pmtAx7VpgyZm Mp+rHiEmbjMMAaLmHtw7lqUf0PtrGzUEDyXanruaY68tKLFNJyFod1Ubgo8znAfD u0/iFcpruhNtvThwCP3AmgvTWjhoDPtXobxkR54akl4TWRaZNka8LfCATouaOGsu dWDqeIQikIhwNPsv144XVpF09JLfejOhUkARj+D1OSTRAtZ/lbia7g==</xenc:CipherValue>
            </xenc:CipherData>
        </xenc:EncryptedData>
    </soap-env:Body>
</soap-env:Envelope>

预期的加密 SOAP 示例

<soapenv:Envelope xmlns:ns="http://bankconnect.dk/schema/2014"
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
    <soapenv:Header>
        <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
            xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
            <xenc:EncryptedKey Id="EK-F3FCAC3C34D9D25B87163351066951111"
                xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
                <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p"/>
                <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
                    <wsse:SecurityTokenReference>
                        <wsse:KeyIdentifier EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3">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</wsse:KeyIdentifier>
                    </wsse:SecurityTokenReference>
                </ds:KeyInfo>
                <xenc:CipherData>
                    <xenc:CipherValue>2be8yrQGdq1KM7XYjcW+AeP4dPUUZLKdbIta1mnipSN5/p8u4Oj06jjFfTWHgZlMo846hGz2l25AJnrOo79aadH+ZLUiZyTTU6zZn8NbziOtB3gff7I0zvTiUTZBFFq7Pj2qQHV+uMBKzZzx8dVgWgu43jwqr8ub2fv32vZeYaYC39VxhZOiVOdcYNBoSXkk53bYvrP5Q/xO0KxgB99WspcozzslELyi0NpRC1W0wr+QcMpl/pX8dugnzRdE5w4IBejhvO/hPFMY8BptDpw9Jr360dbcqfA6SH8ldoqxm9qlHsm80OIhYSFhXWjnOei8Snls6PtcliR3f3DYcaivJw==</xenc:CipherValue>
                </xenc:CipherData>
                <xenc:ReferenceList>
                    <xenc:DataReference URI="#ED-F3FCAC3C34D9D25B87163351066951112"/>
                </xenc:ReferenceList>
            </xenc:EncryptedKey>
        </wsse:Security>
        <ns:activationHeader>
            <ns:organisationIdentification>
                <ns:mainRegistrationNumber>1234</ns:mainRegistrationNumber>
                <ns:isoCountryCode>DK</ns:isoCountryCode>
            </ns:organisationIdentification>
            <ns:functionIdentification>00123456789</ns:functionIdentification>
            <ns:erpInformation>
                <!--Optional:-->
                <ns:erpsystem>TEST</ns:erpsystem>
                <!--Optional:-->
                <ns:erpversion>1</ns:erpversion>
            </ns:erpInformation>
            <ns:endToEndMessageId>TEST</ns:endToEndMessageId>
            <ns:createDateTime>2021-09-14T14:58:33.258+02:00</ns:createDateTime>
        </ns:activationHeader>
        <technicalAddress xmlns="http://bankconnect.dk/schema/2014"
            xmlns:ns2="http://www.w3.org/2000/09/xmldsig#"/>
    </soapenv:Header>
    <soapenv:Body>
        <xenc:EncryptedData Id="ED-F3FCAC3C34D9D25B87163351066951112" Type="http://www.w3.org/2001/04/xmlenc#Content"
            xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
            <xenc:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes256-cbc"/>
            <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
                <wsse:SecurityTokenReference wsse11:TokenType="http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#EncryptedKey"
                    xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
                    xmlns:wsse11="http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd">
                    <wsse:Reference URI="#EK-F3FCAC3C34D9D25B87163351066951111"/>
                </wsse:SecurityTokenReference>
            </ds:KeyInfo>
            <xenc:CipherData>
                <xenc:CipherValue>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</xenc:CipherValue>
            </xenc:CipherData>
        </xenc:EncryptedData>
    </soapenv:Body>
</soapenv:Envelope>

虽然我假设我可以通过使用 openSSL 加密我的初始主体来获取密码数据，但我不知道如何构建安全 header ，以及如何获取参数(如 Id、URI 等)。正如我之前提到的，示例是使用 SoapUi 生成的。有没有办法在 Python 中做同样的事情？

Answer 1

是的，我建议只使用第三方 github lib并调用 WSE Encrypt，或者只使用此函数的特定代码。它将使用 X509 证书对其进行加密。

---

"""Functions for WS-Security (WSSE) encryption and decryption.
Heavily based on test examples in https://github.com/mehcode/python-xmlsec as
well as the xmlsec documentation at https://www.aleksey.com/xmlsec/. Some
functions from https://github.com/mvantellingen/py-soap-wsse.
Reading the xmldsig, xmlenc, and ws-security standards documents, though
admittedly painful, will likely assist in understanding the code in this
module.
"""
import base64

from lxml import etree
from OpenSSL import crypto
import xmlsec

from .constants import BASE64B, X509TOKEN, DS_NS, ENC_NS, SOAP_NS, WSSE_NS
from .xml import ensure_id, ns


def encrypt(envelope, certfile):
    """Encrypt body contents of given SOAP envelope using given X509 cert.
    Currently only encrypts the first child node of the body, so doesn't really
    support a body with multiple child nodes (the later ones won't be
    encrypted), and doesn't support encryption of multiple nodes.
    Expects to encrypt an incoming document something like this (xmlns
    attributes omitted for readability):
    <soap:Envelope>
      <soap:Header>
        <wsse:Security mustUnderstand="true">
          <wsu:Timestamp>
            <wsu:Created>2015-06-25T21:53:25.246276+00:00</wsu:Created>
            <wsu:Expires>2015-06-25T21:58:25.246276+00:00</wsu:Expires>
          </wsu:Timestamp>
        </wsse:Security>
      </soap:Header>
      <soap:Body>
        ...
      </soap:Body>
    </soap:Envelope>
    Encryption results in an XML structure something like this (note the added
    wsse:BinarySecurityToken and xenc:EncryptedKey nodes in the wsse:Security
    header, and that the contents of the soap:Body have now been replaced by a
    wsse:EncryptedData node):
    <soap:Envelope>
      <soap:Header>
        <wsse:Security mustUnderstand="true">
          <wsse:BinarySecurityToken
              wsu:Id="id-31e55a42-adef-4312-aa02-6da738177b25"
              EncodingType="...-wss-soap-message-security-1.0#Base64Binary"
              ValueType=".../oasis-200401-wss-x509-token-profile-1.0#X509v3">
            MIIGRTCC...7RaVeFVB/w==
          </wsse:BinarySecurityToken>
          <xenc:EncryptedKey>
            <xenc:EncryptionMethod
                Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p"/>
            <ds:KeyInfo>
              <wsse:SecurityTokenReference
                  wsse:TokenType="...wss-x509-token-profile-1.0#X509v3">
                <wsse:Reference
                    ValueType="...-wss-x509-token-profile-1.0#X509v3"
                    URI="#id-31e55a42-adef-4312-aa02-6da738177b25"
                />
              </wsse:SecurityTokenReference>
            </ds:KeyInfo>
            <xenc:CipherData>
              <xenc:CipherValue>0m23u5UVh...YLcEcmgzng==</xenc:CipherValue>
            </xenc:CipherData>
            <xenc:ReferenceList>
              <xenc:DataReference
                  URI="#id-094305bf-f73e-4940-88d9-00688bc78718"/>
            </xenc:ReferenceList>
          </xenc:EncryptedKey>
          <wsu:Timestamp wsu:Id="id-d449ec14-f31c-4174-b51c-2a56843eeda5">
            <wsu:Created>2015-06-25T22:26:57.618091+00:00</wsu:Created>
            <wsu:Expires>2015-06-25T22:31:57.618091+00:00</wsu:Expires>
          </wsu:Timestamp>
        </wsse:Security>
      </soap:Header>
      <soap:Body wsu:Id="id-73bc3f79-1597-4e35-91d5-354fc6197858">
        <xenc:EncryptedData
            Type="http://www.w3.org/2001/04/xmlenc#Element"
            wsu:Id="id-094305bf-f73e-4940-88d9-00688bc78718">
          <xenc:EncryptionMethod
            Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc"/>
          <xenc:CipherData>
            <xenc:CipherValue>rSJC8m...js2RQfw/5</xenc:CipherValue>
          </xenc:CipherData>
        </xenc:EncryptedData>
      </soap:Body>
    </soap:Envelope>
    (In practice, we'll generally be encrypting an already-signed document, so
    the Signature node would also be present in the header, but we aren't
    encrypting it and for simplicity it's omitted in this example.)
    """
    doc = etree.fromstring(envelope)

    header = doc.find(ns(SOAP_NS, 'Header'))
    security = header.find(ns(WSSE_NS, 'Security'))

    # Create a keys manager and load the cert into it.
    manager = xmlsec.KeysManager()
    key = xmlsec.Key.from_file(certfile, xmlsec.KeyFormat.CERT_PEM, None)
    manager.add_key(key)

    # Encrypt first child node of the soap:Body.
    body = doc.find(ns(SOAP_NS, 'Body'))
    target = body[0]

    # Create the EncryptedData node we will replace the target node with,
    # and make sure it has the contents XMLSec expects (a CipherValue node,
    # a KeyInfo node, and an EncryptedKey node within the KeyInfo which
    # itself has a CipherValue).
    enc_data = xmlsec.template.encrypted_data_create(
        doc,
        xmlsec.Transform.DES3,
        type=xmlsec.EncryptionType.ELEMENT,
        ns='xenc',
    )
    xmlsec.template.encrypted_data_ensure_cipher_value(enc_data)
    key_info = xmlsec.template.encrypted_data_ensure_key_info(
        enc_data, ns='dsig')
    enc_key = xmlsec.template.add_encrypted_key(
        key_info, xmlsec.Transform.RSA_OAEP)
    xmlsec.template.encrypted_data_ensure_cipher_value(enc_key)

    enc_ctx = xmlsec.EncryptionContext(manager)
    # Generate a per-session DES key (will be encrypted using the cert).
    enc_ctx.key = xmlsec.Key.generate(
        xmlsec.KeyData.DES, 192, xmlsec.KeyDataType.SESSION)
    # Ask XMLSec to actually do the encryption.
    enc_data = enc_ctx.encrypt_xml(enc_data, target)

    # XMLSec inserts the EncryptedKey node directly within EncryptedData,
    # but WSSE wants it in the Security header instead, and referencing the
    # EncryptedData as well as the actual cert in a BinarySecurityToken.

    # Move the EncryptedKey node up into the wsse:Security header.
    security.insert(0, enc_key)

    # Create a wsse:BinarySecurityToken node containing the cert and add it
    # to the Security header.
    cert_bst = create_binary_security_token(certfile)
    security.insert(0, cert_bst)

    # Create a ds:KeyInfo node referencing the BinarySecurityToken we just
    # created, and insert it into the EncryptedKey node.
    enc_key.insert(1, create_key_info_bst(cert_bst))

    # Add a DataReference from the EncryptedKey node to the EncryptedData.
    add_data_reference(enc_key, enc_data)

    # Remove the now-empty KeyInfo node from EncryptedData (it used to
    # contain EncryptedKey, but we moved that up into the Security header).
    enc_data.remove(key_info)

    return etree.tostring(doc)


def decrypt(envelope, keyfile):
    """Decrypt all EncryptedData, using EncryptedKey from Security header.
    EncryptedKey should be a session key encrypted for given ``keyfile``.
    Expects XML similar to the example in the ``encrypt`` docstring.
    """
    # Create a key manager and load our key into it.
    manager = xmlsec.KeysManager()
    key = xmlsec.Key.from_file(keyfile, xmlsec.KeyFormat.PEM)
    manager.add_key(key)

    doc = etree.fromstring(envelope)
    header = doc.find(ns(SOAP_NS, 'Header'))
    security = header.find(ns(WSSE_NS, 'Security'))
    enc_key = security.find(ns(ENC_NS, 'EncryptedKey'))

    # Find each referenced encrypted block (each DataReference in the
    # ReferenceList of the EncryptedKey) and decrypt it.
    ref_list = enc_key.find(ns(ENC_NS, 'ReferenceList'))
    for ref in ref_list:
        # Find the EncryptedData node referenced by this DataReference.
        ref_uri = ref.get('URI')
        referenced_id = ref_uri[1:]
        enc_data = doc.xpath(
            "//enc:EncryptedData[@Id='%s']" % referenced_id,
            namespaces={'enc': ENC_NS},
        )[0]

        # XMLSec doesn't understand WSSE, therefore it doesn't understand
        # SecurityTokenReference. It expects to find EncryptedKey within the
        # KeyInfo of the EncryptedData. So we get rid of the
        # SecurityTokenReference and replace it with the EncryptedKey before
        # trying to decrypt.
        key_info = enc_data.find(ns(DS_NS, 'KeyInfo'))
        key_info.remove(key_info[0])
        key_info.append(enc_key)

        # When XMLSec decrypts, it automatically replaces the EncryptedData
        # node with the decrypted contents.
        ctx = xmlsec.EncryptionContext(manager)
        ctx.decrypt(enc_data)

    return etree.tostring(doc)


def add_data_reference(enc_key, enc_data):
    """Add DataReference to ``enc_data`` in ReferenceList of ``enc_key``.
    ``enc_data`` should be an EncryptedData node; ``enc_key`` an EncryptedKey
    node.
    Add a wsu:Id attribute to the EncryptedData if it doesn't already have one,
    so the EncryptedKey's URI attribute can reference it.
    (See the example XML in the ``encrypt()`` docstring.)
    Return created DataReference node.
    """
    # Ensure the target EncryptedData has a wsu:Id.
    data_id = ensure_id(enc_data)

    # Ensure the EncryptedKey has a ReferenceList.
    ref_list = ensure_reference_list(enc_key)

    # Create the DataReference, with URI attribute referencing the target
    # node's id, add it to the ReferenceList, and return it.
    data_ref = etree.SubElement(ref_list, ns(ENC_NS, 'DataReference'))
    data_ref.set('URI', '#' + data_id)

    return data_ref


def ensure_reference_list(encrypted_key):
    """Ensure that given EncryptedKey node has a ReferenceList node.
    Return the found or created ReferenceList node.
    """
    ref_list = encrypted_key.find(ns(ENC_NS, 'ReferenceList'))
    if ref_list is None:
        ref_list = etree.SubElement(encrypted_key, ns(ENC_NS, 'ReferenceList'))
    return ref_list


def create_key_info_bst(security_token):
    """Create and return a KeyInfo node referencing given BinarySecurityToken.
    (See the example XML in the ``encrypt()`` docstring.)
    Modified from https://github.com/mvantellingen/py-soap-wsse.
    """
    # Create the KeyInfo node.
    key_info = etree.Element(ns(DS_NS, 'KeyInfo'), nsmap={'ds': DS_NS})

    # Create a wsse:SecurityTokenReference node within KeyInfo.
    sec_token_ref = etree.SubElement(
        key_info, ns(WSSE_NS, 'SecurityTokenReference'))
    sec_token_ref.set(
        ns(WSSE_NS, 'TokenType'), security_token.get('ValueType'))

    # Add a Reference to the BinarySecurityToken in the SecurityTokenReference.
    bst_id = ensure_id(security_token)
    reference = etree.SubElement(sec_token_ref, ns(WSSE_NS, 'Reference'))
    reference.set('ValueType', security_token.get('ValueType'))
    reference.set('URI', '#%s' % bst_id)

    return key_info


def create_binary_security_token(certfile):
    """Create a BinarySecurityToken node containing the x509 certificate.
    Modified from https://github.com/mvantellingen/py-soap-wsse.
    """
    # Create the BinarySecurityToken node with appropriate attributes.
    node = etree.Element(ns(WSSE_NS, 'BinarySecurityToken'))
    node.set('EncodingType', BASE64B)
    node.set('ValueType', X509TOKEN)

    # Set the node contents.
    with open(certfile) as fh:
        cert = crypto.load_certificate(crypto.FILETYPE_PEM, fh.read())
        node.text = base64.b64encode(
            crypto.dump_certificate(crypto.FILETYPE_ASN1, cert))

    return node