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如何使用python在base64中为ds:DigestValue、ds:SignatureValue和ds:X509Certificate生成哈希？

python xml

如何使用python在base64中为ds:DigestValue、ds:SignatureValue和ds:X509Certificate生成哈希？,python,xml,Python,Xml,我需要生成并签署一个XML我正在使用Windows 10 我有一个PFX格式的证书（也称为P12）。我已经成功地从该文件中提取了密钥和证书，以便对XML进行签名 但现在我需要知道如何对XML进行签名？更确切地说，如何生成此XMl元素的内容：ds:DigestValue，ds:SignatureValue和ds:X509Certificate 根据将验证签名XML的实体的文档，这些元素包括： ds:SignatureValue：包含base64编码符号。符号是对元素的binari数据进行一系列转换

我需要生成并签署一个XML我正在使用Windows 10

我有一个PFX格式的证书（也称为P12）。我已经成功地从该文件中提取了密钥和证书，以便对XML进行签名

但现在我需要知道如何对XML进行签名？更确切地说，如何生成此XMl元素的内容：
ds:DigestValue
，
ds:SignatureValue
和
ds:X509Certificate

根据将验证签名XML的实体的文档，这些元素包括：

ds:SignatureValue：包含base64编码符号。符号是对元素的binari数据进行一系列转换的结果
。元素
包含编码登录
base64
的此二进制值

ds:DigestMethod：通过算法atribute定义要使用的哈希函数

ds:DigestValue：是
base64
中的哈希值

ds:X509Certificate：它只是一个标志

最后的XML还有其他部分包含不同的信息，但我想了解如何构造所提到的标记：

<ds:Signature Id="IDSignSA">
    <ds:SignedInfo>
        <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
        <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
        <ds:Reference URI="">
            <ds:Transforms>
                <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#envelopedsignature"/>
            </ds:Transforms>
            <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
            <ds:DigestValue>X4V0Z4K8CNcrud9vojN Iy/8hjkk=</ds:DigestValue>
        </ds:Reference>
    </ds:SignedInfo>
    <ds:SignatureValue>U8bSaZUgOiD F3VDtwFRPiZ/6AQkSht7ezF8QVv+g5ELiLqkQHmRoL7VMLUtaHr+A9VhkIb5RZU5P EoRcvxI9v37zJg2WUe2wpKAY7AHm7kvvUHEs09K8Q+c0rqNaAAK1kvXPHbVFXnn0o2oLWI1bI/rS sWsFtjdmVtyLjkDEzf8=</ds:SignatureValue>
    <ds:KeyInfo>
        <ds:X509Data>
            <ds:X509SubjectName>1. 2.840.113549.1.9.1=#161a4253554c434140534f55544845524e504552552e434f4d2e5045,CN=Pedro Solano,OU=10261110983,O=SOLANO ALMAGRO PEDRO,L=TACNA,ST=TACNA,C=PE</ds:X509SubjectName>
            <ds:X509Certificate>MIIESTCCAzGgAwIBAgI
KWOCRzgAAAAAAIjANBgkqhkiG9w0BAQUFADAnMRUwEwYKCZImiZPyLGQB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</ds:X509Certificate>
        </ds:X509Data>
    </ds:KeyInfo>
</ds:Signature>

<cac:Signature>
    <cbc:ID>IDSignSA</cbc:ID>
    <cac:SignatoryParty>
        <cac:PartyIdentification>
            <cbc:ID>10261110983</cbc:ID>
        </cac:PartyIdentification>
        <cac:PartyName>
            <cbc:Name>SOLANO ALMAGRO PEDRO</cbc:Name>
        </cac:PartyName>
    </cac:SignatoryParty>
    <cac:DigitalSignatureAttachment>
        <cac:ExternalReference>
            <cbc:URI>#signature</cbc:URI>
        </cac:ExternalReference>
    </cac:DigitalSignatureAttachment>
</cac:Signature>
但是这个例子会生成3个标签的内容吗？

更新1:

我尝试将我的XML像这样进行签名，但出现了一个错误：

from lxml import etree
from signxml import XMLSigner, XMLVerifier



passwd = 'caballo123'
cd = 'D:\\facturacion_electronica\\cetificado_prueba\\'


my_data_to_sign = '''
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" 
    xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" 
    xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" 
    xmlns:ccts="urn:un:unece:uncefact:documentation:2" 
    xmlns:ds="http://www.w3.org/2000/09/xmldsig#" 
    xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2" 
    xmlns:qdt="urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2" 
    xmlns:sac="urn:sunat:names:specification:ubl:peru:schema:xsd:SunatAggregateComponents-1" 
    xmlns:udt="urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <ext:UBLExtensions>
        <ext:UBLExtension>
            <ext:ExtensionContent>
                <sac:AdditionalInformation>
                    <sac:AdditionalMonetaryTotal>
                        <cbc:ID>1001</cbc:ID>
                        <cbc:PayableAmount currencyID="PEN">1407.29</cbc:PayableAmount>
                    </sac:AdditionalMonetaryTotal>
                    <sac:AdditionalMonetaryTotal>
                        <cbc:ID>1004</cbc:ID>
                        <cbc:PayableAmount currencyID="PEN">48.00</cbc:PayableAmount>
                    </sac:AdditionalMonetaryTotal>
                    <sac:AdditionalMonetaryTotal>
                        <cbc:ID>2005</cbc:ID>
                        <cbc:PayableAmount currencyID="PEN">74.07</cbc:PayableAmount>
                    </sac:AdditionalMonetaryTotal>
                    <sac:AdditionalProperty>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Value>SON MIL SEISCIENTOS SESENTA Y 60/100</cbc:Value>
                    </sac:AdditionalProperty>
                </sac:AdditionalInformation>
            </ext:ExtensionContent>
        </ext:UBLExtension>
        <ext:UBLExtension>
            <ext:ExtensionContent>
                <ds:Signature Id="signatureKG">
                    <ds:SignedInfo>
                        <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
                        <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
                        <ds:Reference URI="">
                            <ds:Transforms>
                                <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#envelopedsignature"/>
                            </ds:Transforms>
                            <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
                            <ds:DigestValue></ds:DigestValue>
                        </ds:Reference>
                    </ds:SignedInfo>
                    <ds:SignatureValue></ds:SignatureValue>
                    <ds:KeyInfo>
                        <ds:X509Data>
                            <ds:X509SubjectName>1.2 .840.113549.1.9.1=#161a4253554c434140534f55544845524e504552552e434f4d2e5045,CN=Carlos Vega,OU=10200545523,O=Vega Poblete Carlos Enrique,L=CHICLAYO,ST=LAMBAYEQUE,C=PE</ds:X509SubjectName>
                            <ds:X509Certificate></ds:X509Certificate>
                        </ds:X509Data>
                    </ds:KeyInfo>
                </ds:Signature>
            </ext:ExtensionContent>
        </ext:UBLExtension>
    </ext:UBLExtensions>
    <cbc:UBLVersionID>2.0</cbc:UBLVersionID>
    <cbc:CustomizationID>1.0</cbc:CustomizationID>
    <cbc:ID>BC01-3652</cbc:ID>
    <cbc:IssueDate>2012-06-24</cbc:IssueDate>
    <cbc:InvoiceTypeCode>03</cbc:InvoiceTypeCode>
    <cbc:DocumentCurrencyCode>PEN</cbc:DocumentCurrencyCode>
    <cac:Signature>
        <cbc:ID>IDSignKG</cbc:ID>
        <cac:SignatoryParty>
            <cac:PartyIdentification>
                <cbc:ID>10200545523</cbc:ID>
            </cac:PartyIdentification>
            <cac:PartyName>
                <cbc:Name>VEGA POBLETE CARLOS ENRIQUE</cbc:Name>
            </cac:PartyName>
        </cac:SignatoryParty>
        <cac:DigitalSignatureAttachment>
            <cac:ExternalReference>
                <cbc:URI>#SignatureKG</cbc:URI>
            </cac:ExternalReference>
        </cac:DigitalSignatureAttachment>
    </cac:Signature>
    <cac:AccountingSupplierParty>
        <cbc:CustomerAssignedAccountID>10200545523</cbc:CustomerAssignedAccountID>
        <cbc:AdditionalAccountID>6</cbc:AdditionalAccountID>
        <cac:Party>
            <cac:PartyName>
                <cbc:Name>ELECTRODOMESTICOS CRUZ DE MOTUPE</cbc:Name>
            </cac:PartyName>
            <cac:PostalAddress>
                <cbc:ID>140106</cbc:ID>
                <cbc:StreetName>AV. LOS TALLANES #235</cbc:StreetName>
                <cbc:CitySubdivisionName>URB. MIGUEL GRAU</cbc:CitySubdivisionName>
                <cbc:CityName>CHICLAYO</cbc:CityName>
                <cbc:CountrySubentity>LAMBAYEQUE</cbc:CountrySubentity>
                <cbc:District>LA VICTORIA</cbc:District>
                <cac:Country>
                    <cbc:IdentificationCode>PE</cbc:IdentificationCode>
                </cac:Country>
            </cac:PostalAddress>
            <cac:PartyLegalEntity>
                <cbc:RegistrationName>VEGA POBLETE CARLOS ENRIQUE</cbc:RegistrationName>
            </cac:PartyLegalEntity>
        </cac:Party>
    </cac:AccountingSupplierParty>
    <cac:AccountingCustomerParty>
        <cbc:CustomerAssignedAccountID>00078647</cbc:CustomerAssignedAccountID>
        <cbc:AdditionalAccountID>1</cbc:AdditionalAccountID>
        <cac:Party>
            <cac:PartyLegalEntity>
                <cbc:RegistrationName>SOLEDAD ASUNCION CARRASCO PEREZ</cbc:RegistrationName>
            </cac:PartyLegalEntity>
        </cac:Party>
    </cac:AccountingCustomerParty>
    <cac:TaxTotal>
        <cbc:TaxAmount currencyID="PEN">253.31</cbc:TaxAmount>
        <cac:TaxSubtotal>
            <cbc:TaxAmount currencyID="PEN">253.31</cbc:TaxAmount>
            <cac:TaxCategory>
                <cac:TaxScheme>
                    <cbc:ID>1000</cbc:ID>
                    <cbc:Name>IGV</cbc:Name>
                    <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                </cac:TaxScheme>
            </cac:TaxCategory>
        </cac:TaxSubtotal>
    </cac:TaxTotal>
    <cac:LegalMonetaryTotal>
        <cbc:PayableAmount currencyID="PEN">1660.60</cbc:PayableAmount>
    </cac:LegalMonetaryTotal>
    <cac:InvoiceLine>
        <cbc:ID>1</cbc:ID>
        <cbc:InvoicedQuantity unitCode="NIU">1</cbc:InvoicedQuantity>
        <cbc:LineExtensionAmount currencyID="PEN">845.76</cbc:LineExtensionAmount>
        <cac:PricingReference>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">998.00</cbc:PriceAmount>
                <cbc:PriceTypeCode>01</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
        </cac:PricingReference>
        <cac:TaxTotal>
            <cbc:TaxAmount currencyID="PEN">152.24</cbc:TaxAmount>
            <cac:TaxSubtotal>
                <cbc:TaxAmount currencyID="PEN">152.24</cbc:TaxAmount>
                <cac:TaxCategory>
                    <cbc:TaxExemptionReasonCode>10</cbc:TaxExemptionReasonCode>
                    <cac:TaxScheme>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Name>IGV</cbc:Name>
                        <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                    </cac:TaxScheme>
                </cac:TaxCategory>
            </cac:TaxSubtotal>
        </cac:TaxTotal>
        <cac:Item>
            <cbc:Description>Refrigeradora marca "AXM" no frost de 200 ltrs</cbc:Description>
            <cac:SellersItemIdentification>
                <cbc:ID>REF564</cbc:ID>
            </cac:SellersItemIdentification>
        </cac:Item>
        <cac:Price>
            <cbc:PriceAmount currencyID="PEN">845.76</cbc:PriceAmount>
        </cac:Price>
    </cac:InvoiceLine>
    <cac:InvoiceLine>
        <cbc:ID>2</cbc:ID>
        <cbc:InvoicedQuantity unitCode="NIU">1</cbc:InvoicedQuantity>
        <cbc:LineExtensionAmount currencyID="PEN">635.59</cbc:LineExtensionAmount>
        <cac:PricingReference>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">750.00</cbc:PriceAmount>
                <cbc:PriceTypeCode>01</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
        </cac:PricingReference>
        <cac:TaxTotal>
            <cbc:TaxAmount currencyID="PEN">114.41</cbc:TaxAmount>
            <cac:TaxSubtotal>
                <cbc:TaxAmount currencyID="PEN">114.41</cbc:TaxAmount>
                <cac:TaxCategory>
                    <cbc:TaxExemptionReasonCode>10</cbc:TaxExemptionReasonCode>
                    <cac:TaxScheme>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Name>IGV</cbc:Name>
                        <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                    </cac:TaxScheme>
                </cac:TaxCategory>
            </cac:TaxSubtotal>
        </cac:TaxTotal>
        <cac:Item>
            <cbc:Description>Cocina a gas GLP, marca "AXM" de 5 hornillas</cbc:Description>
            <cac:SellersItemIdentification>
                <cbc:ID>COC124</cbc:ID>
            </cac:SellersItemIdentification>
        </cac:Item>
        <cac:Price>
            <cbc:PriceAmount currencyID="PEN">635.59</cbc:PriceAmount>
        </cac:Price>
    </cac:InvoiceLine>
    <cac:InvoiceLine>
        <cbc:ID>3</cbc:ID>
        <cbc:InvoicedQuantity unitCode="NIU">1</cbc:InvoicedQuantity>
        <cbc:LineExtensionAmount currencyID="PEN">0.00</cbc:LineExtensionAmount>
        <cac:PricingReference>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">0.00</cbc:PriceAmount>
                <cbc:PriceTypeCode>01</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">4.80</cbc:PriceAmount>
                <cbc:PriceTypeCode>02</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
        </cac:PricingReference>
        <cac:TaxTotal>
            <cbc:TaxAmount currencyID="PEN">0.00</cbc:TaxAmount>
            <cac:TaxSubtotal>
                <cbc:TaxAmount currencyID="PEN">0.00</cbc:TaxAmount>
                <cac:TaxCategory>
                    <cbc:TaxExemptionReasonCode>31</cbc:TaxExemptionReasonCode>
                    <cac:TaxScheme>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Name>IGV</cbc:Name>
                        <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                    </cac:TaxScheme>
                </cac:TaxCategory>
            </cac:TaxSubtotal>
        </cac:TaxTotal>
        <cac:Item>
            <cbc:Description>Sixpack de gaseosa "Guaraná" de 400 ml.</cbc:Description>
            <cac:SellersItemIdentification>
                <cbc:ID>NOB012</cbc:ID>
            </cac:SellersItemIdentification>
        </cac:Item>
        <cac:Price>
            <cbc:PriceAmount currencyID="PEN">0.00</cbc:PriceAmount>
        </cac:Price>
    </cac:InvoiceLine>
</Invoice>
'''


data_to_sign = my_data_to_sign
cert = open("llama_cert.pem").read()
key = open("llama.key").read()
root = etree.fromstring(data_to_sign)
signed_root = XMLSigner().sign(root, key=key, cert=cert)
verified_data = XMLVerifier().verify(signed_root, x509_cert=cert).signed_xml
print(verified_data)

从lxml导入etree
从signxml导入XMLSigner，XMLVerifier
passwd='caballo123'
cd='D:\\facturacion\u electronica\\cetificado\u prueba\\'
我的\u数据\u到\u符号=“”
1001
1407.29
1004
48
2005
74.07
1000
儿子MIL Seitos SESENTA Y 60/100
1.2.840.113549.1.9.1=#161A4253554C43414140534F5544845524E50452552E434FDD2E5045，CN=Carlos Vega，OU=10200545523，O=Vega Poblete Carlos Enrique，L=CHICLAYO，ST=Lambayque，C=PE
2
1
BC01-3652
2012-06-24
03
笔
IDSignKG
10200545523
织女星卡洛斯·恩里克
#签名
10200545523
6.
克鲁兹·德莫图佩家庭电器公司
140106
AV。洛斯塔兰斯#235
城市。米格尔·格劳
奇克拉伊
兰巴耶克
维多利亚
体育课
织女星卡洛斯·恩里克
00078647
1.
索莱达亚松森卡拉斯科佩雷斯酒店
253.31
253.31
1000
IGV
增值税
1660.60
1.
1.
845.76
998
01
152.24
152.24
10
1000
IGV
增值税
冷冻剂玛卡“AXM”无霜冻200升
参考文献564
845.76
2.
1.
635.59
750
01
114.41
114.41
10
1000
IGV
增值税
Cocina a气体GLP，marca“AXM”de 5 hornillas
COC124
635.59
3.
1.
0
0
01
4.80
02
0
0
31
1000
IGV
增值税
400毫升“瓜拉那”天然气六组分。
NOB012
0
'''
数据到符号=我的数据到符号
证书=打开（“llama_cert.pem”）.read（）
key=open（“llama.key”）.read（）
root=etree.fromstring（数据到符号）
signed_root=XMLSigner（）.签名（root，key=key，cert=cert）
版本

from lxml import etree
from signxml import XMLSigner, XMLVerifier



passwd = 'caballo123'
cd = 'D:\\facturacion_electronica\\cetificado_prueba\\'


my_data_to_sign = '''
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" 
    xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" 
    xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" 
    xmlns:ccts="urn:un:unece:uncefact:documentation:2" 
    xmlns:ds="http://www.w3.org/2000/09/xmldsig#" 
    xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2" 
    xmlns:qdt="urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2" 
    xmlns:sac="urn:sunat:names:specification:ubl:peru:schema:xsd:SunatAggregateComponents-1" 
    xmlns:udt="urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <ext:UBLExtensions>
        <ext:UBLExtension>
            <ext:ExtensionContent>
                <sac:AdditionalInformation>
                    <sac:AdditionalMonetaryTotal>
                        <cbc:ID>1001</cbc:ID>
                        <cbc:PayableAmount currencyID="PEN">1407.29</cbc:PayableAmount>
                    </sac:AdditionalMonetaryTotal>
                    <sac:AdditionalMonetaryTotal>
                        <cbc:ID>1004</cbc:ID>
                        <cbc:PayableAmount currencyID="PEN">48.00</cbc:PayableAmount>
                    </sac:AdditionalMonetaryTotal>
                    <sac:AdditionalMonetaryTotal>
                        <cbc:ID>2005</cbc:ID>
                        <cbc:PayableAmount currencyID="PEN">74.07</cbc:PayableAmount>
                    </sac:AdditionalMonetaryTotal>
                    <sac:AdditionalProperty>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Value>SON MIL SEISCIENTOS SESENTA Y 60/100</cbc:Value>
                    </sac:AdditionalProperty>
                </sac:AdditionalInformation>
            </ext:ExtensionContent>
        </ext:UBLExtension>
        <ext:UBLExtension>
            <ext:ExtensionContent>
                <ds:Signature Id="signatureKG">
                    <ds:SignedInfo>
                        <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
                        <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
                        <ds:Reference URI="">
                            <ds:Transforms>
                                <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#envelopedsignature"/>
                            </ds:Transforms>
                            <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
                            <ds:DigestValue></ds:DigestValue>
                        </ds:Reference>
                    </ds:SignedInfo>
                    <ds:SignatureValue></ds:SignatureValue>
                    <ds:KeyInfo>
                        <ds:X509Data>
                            <ds:X509SubjectName>1.2 .840.113549.1.9.1=#161a4253554c434140534f55544845524e504552552e434f4d2e5045,CN=Carlos Vega,OU=10200545523,O=Vega Poblete Carlos Enrique,L=CHICLAYO,ST=LAMBAYEQUE,C=PE</ds:X509SubjectName>
                            <ds:X509Certificate></ds:X509Certificate>
                        </ds:X509Data>
                    </ds:KeyInfo>
                </ds:Signature>
            </ext:ExtensionContent>
        </ext:UBLExtension>
    </ext:UBLExtensions>
    <cbc:UBLVersionID>2.0</cbc:UBLVersionID>
    <cbc:CustomizationID>1.0</cbc:CustomizationID>
    <cbc:ID>BC01-3652</cbc:ID>
    <cbc:IssueDate>2012-06-24</cbc:IssueDate>
    <cbc:InvoiceTypeCode>03</cbc:InvoiceTypeCode>
    <cbc:DocumentCurrencyCode>PEN</cbc:DocumentCurrencyCode>
    <cac:Signature>
        <cbc:ID>IDSignKG</cbc:ID>
        <cac:SignatoryParty>
            <cac:PartyIdentification>
                <cbc:ID>10200545523</cbc:ID>
            </cac:PartyIdentification>
            <cac:PartyName>
                <cbc:Name>VEGA POBLETE CARLOS ENRIQUE</cbc:Name>
            </cac:PartyName>
        </cac:SignatoryParty>
        <cac:DigitalSignatureAttachment>
            <cac:ExternalReference>
                <cbc:URI>#SignatureKG</cbc:URI>
            </cac:ExternalReference>
        </cac:DigitalSignatureAttachment>
    </cac:Signature>
    <cac:AccountingSupplierParty>
        <cbc:CustomerAssignedAccountID>10200545523</cbc:CustomerAssignedAccountID>
        <cbc:AdditionalAccountID>6</cbc:AdditionalAccountID>
        <cac:Party>
            <cac:PartyName>
                <cbc:Name>ELECTRODOMESTICOS CRUZ DE MOTUPE</cbc:Name>
            </cac:PartyName>
            <cac:PostalAddress>
                <cbc:ID>140106</cbc:ID>
                <cbc:StreetName>AV. LOS TALLANES #235</cbc:StreetName>
                <cbc:CitySubdivisionName>URB. MIGUEL GRAU</cbc:CitySubdivisionName>
                <cbc:CityName>CHICLAYO</cbc:CityName>
                <cbc:CountrySubentity>LAMBAYEQUE</cbc:CountrySubentity>
                <cbc:District>LA VICTORIA</cbc:District>
                <cac:Country>
                    <cbc:IdentificationCode>PE</cbc:IdentificationCode>
                </cac:Country>
            </cac:PostalAddress>
            <cac:PartyLegalEntity>
                <cbc:RegistrationName>VEGA POBLETE CARLOS ENRIQUE</cbc:RegistrationName>
            </cac:PartyLegalEntity>
        </cac:Party>
    </cac:AccountingSupplierParty>
    <cac:AccountingCustomerParty>
        <cbc:CustomerAssignedAccountID>00078647</cbc:CustomerAssignedAccountID>
        <cbc:AdditionalAccountID>1</cbc:AdditionalAccountID>
        <cac:Party>
            <cac:PartyLegalEntity>
                <cbc:RegistrationName>SOLEDAD ASUNCION CARRASCO PEREZ</cbc:RegistrationName>
            </cac:PartyLegalEntity>
        </cac:Party>
    </cac:AccountingCustomerParty>
    <cac:TaxTotal>
        <cbc:TaxAmount currencyID="PEN">253.31</cbc:TaxAmount>
        <cac:TaxSubtotal>
            <cbc:TaxAmount currencyID="PEN">253.31</cbc:TaxAmount>
            <cac:TaxCategory>
                <cac:TaxScheme>
                    <cbc:ID>1000</cbc:ID>
                    <cbc:Name>IGV</cbc:Name>
                    <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                </cac:TaxScheme>
            </cac:TaxCategory>
        </cac:TaxSubtotal>
    </cac:TaxTotal>
    <cac:LegalMonetaryTotal>
        <cbc:PayableAmount currencyID="PEN">1660.60</cbc:PayableAmount>
    </cac:LegalMonetaryTotal>
    <cac:InvoiceLine>
        <cbc:ID>1</cbc:ID>
        <cbc:InvoicedQuantity unitCode="NIU">1</cbc:InvoicedQuantity>
        <cbc:LineExtensionAmount currencyID="PEN">845.76</cbc:LineExtensionAmount>
        <cac:PricingReference>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">998.00</cbc:PriceAmount>
                <cbc:PriceTypeCode>01</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
        </cac:PricingReference>
        <cac:TaxTotal>
            <cbc:TaxAmount currencyID="PEN">152.24</cbc:TaxAmount>
            <cac:TaxSubtotal>
                <cbc:TaxAmount currencyID="PEN">152.24</cbc:TaxAmount>
                <cac:TaxCategory>
                    <cbc:TaxExemptionReasonCode>10</cbc:TaxExemptionReasonCode>
                    <cac:TaxScheme>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Name>IGV</cbc:Name>
                        <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                    </cac:TaxScheme>
                </cac:TaxCategory>
            </cac:TaxSubtotal>
        </cac:TaxTotal>
        <cac:Item>
            <cbc:Description>Refrigeradora marca "AXM" no frost de 200 ltrs</cbc:Description>
            <cac:SellersItemIdentification>
                <cbc:ID>REF564</cbc:ID>
            </cac:SellersItemIdentification>
        </cac:Item>
        <cac:Price>
            <cbc:PriceAmount currencyID="PEN">845.76</cbc:PriceAmount>
        </cac:Price>
    </cac:InvoiceLine>
    <cac:InvoiceLine>
        <cbc:ID>2</cbc:ID>
        <cbc:InvoicedQuantity unitCode="NIU">1</cbc:InvoicedQuantity>
        <cbc:LineExtensionAmount currencyID="PEN">635.59</cbc:LineExtensionAmount>
        <cac:PricingReference>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">750.00</cbc:PriceAmount>
                <cbc:PriceTypeCode>01</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
        </cac:PricingReference>
        <cac:TaxTotal>
            <cbc:TaxAmount currencyID="PEN">114.41</cbc:TaxAmount>
            <cac:TaxSubtotal>
                <cbc:TaxAmount currencyID="PEN">114.41</cbc:TaxAmount>
                <cac:TaxCategory>
                    <cbc:TaxExemptionReasonCode>10</cbc:TaxExemptionReasonCode>
                    <cac:TaxScheme>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Name>IGV</cbc:Name>
                        <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                    </cac:TaxScheme>
                </cac:TaxCategory>
            </cac:TaxSubtotal>
        </cac:TaxTotal>
        <cac:Item>
            <cbc:Description>Cocina a gas GLP, marca "AXM" de 5 hornillas</cbc:Description>
            <cac:SellersItemIdentification>
                <cbc:ID>COC124</cbc:ID>
            </cac:SellersItemIdentification>
        </cac:Item>
        <cac:Price>
            <cbc:PriceAmount currencyID="PEN">635.59</cbc:PriceAmount>
        </cac:Price>
    </cac:InvoiceLine>
    <cac:InvoiceLine>
        <cbc:ID>3</cbc:ID>
        <cbc:InvoicedQuantity unitCode="NIU">1</cbc:InvoicedQuantity>
        <cbc:LineExtensionAmount currencyID="PEN">0.00</cbc:LineExtensionAmount>
        <cac:PricingReference>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">0.00</cbc:PriceAmount>
                <cbc:PriceTypeCode>01</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
            <cac:AlternativeConditionPrice>
                <cbc:PriceAmount currencyID="PEN">4.80</cbc:PriceAmount>
                <cbc:PriceTypeCode>02</cbc:PriceTypeCode>
            </cac:AlternativeConditionPrice>
        </cac:PricingReference>
        <cac:TaxTotal>
            <cbc:TaxAmount currencyID="PEN">0.00</cbc:TaxAmount>
            <cac:TaxSubtotal>
                <cbc:TaxAmount currencyID="PEN">0.00</cbc:TaxAmount>
                <cac:TaxCategory>
                    <cbc:TaxExemptionReasonCode>31</cbc:TaxExemptionReasonCode>
                    <cac:TaxScheme>
                        <cbc:ID>1000</cbc:ID>
                        <cbc:Name>IGV</cbc:Name>
                        <cbc:TaxTypeCode>VAT</cbc:TaxTypeCode>
                    </cac:TaxScheme>
                </cac:TaxCategory>
            </cac:TaxSubtotal>
        </cac:TaxTotal>
        <cac:Item>
            <cbc:Description>Sixpack de gaseosa "Guaraná" de 400 ml.</cbc:Description>
            <cac:SellersItemIdentification>
                <cbc:ID>NOB012</cbc:ID>
            </cac:SellersItemIdentification>
        </cac:Item>
        <cac:Price>
            <cbc:PriceAmount currencyID="PEN">0.00</cbc:PriceAmount>
        </cac:Price>
    </cac:InvoiceLine>
</Invoice>
'''


data_to_sign = my_data_to_sign
cert = open("llama_cert.pem").read()
key = open("llama.key").read()
root = etree.fromstring(data_to_sign)
signed_root = XMLSigner().sign(root, key=key, cert=cert)
verified_data = XMLVerifier().verify(signed_root, x509_cert=cert).signed_xml
print(verified_data)