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-rw-r--r--xmlsecurity/source/xmlsec/mscrypt/x509certificate_mscryptimpl.cxx652
1 files changed, 652 insertions, 0 deletions
diff --git a/xmlsecurity/source/xmlsec/mscrypt/x509certificate_mscryptimpl.cxx b/xmlsecurity/source/xmlsec/mscrypt/x509certificate_mscryptimpl.cxx
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+++ b/xmlsecurity/source/xmlsec/mscrypt/x509certificate_mscryptimpl.cxx
@@ -0,0 +1,652 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <string.h>
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <comphelper/windowserrorstring.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include "x509certificate_mscryptimpl.hxx"
+#include <certificateextension_xmlsecimpl.hxx>
+#include "sanextension_mscryptimpl.hxx"
+
+#include "oid.hxx"
+
+#include <rtl/locale.h>
+#include <osl/nlsupport.h>
+#include <osl/process.h>
+#include <o3tl/char16_t2wchar_t.hxx>
+
+#include <memory>
+#include <utility>
+#include <vector>
+#include <tools/time.hxx>
+#include <svl/sigstruct.hxx>
+
+using namespace com::sun::star;
+using namespace ::com::sun::star::uno ;
+using namespace ::com::sun::star::security ;
+
+using ::com::sun::star::security::XCertificate ;
+using ::com::sun::star::util::DateTime ;
+
+/*Returns the index within rRawString where sTypeName starts and where it ends.
+ The starting index is pair.first. The ending index in pair.second points
+ one char after the last character of the type.
+ sTypeName can be
+ "S" or "CN" (without ""). Do not use spaces at the beginning of the type name.
+ If the type name is not found then pair.first and pair.second are -1.
+*/
+static std::pair< sal_Int32, sal_Int32 >
+findTypeInDN(const OUString& rRawString, const OUString& sTypeName)
+{
+ std::pair< sal_Int32, sal_Int32 > retVal;
+ bool bInEscape = false;
+ bool bInValue = false;
+ bool bFound = false;
+ sal_Int32 nTypeNameStart = 0;
+ sal_Int32 length = rRawString.getLength();
+
+ for (sal_Int32 i = 0; i < length; i++)
+ {
+ sal_Unicode c = rRawString[i];
+
+ if (c == '=')
+ {
+ if (! bInValue)
+ {
+ OUString sType = rRawString.copy(nTypeNameStart, i - nTypeNameStart);
+ sType = sType.trim();
+ if (sType.equalsIgnoreAsciiCase(sTypeName))
+ {
+ bFound = true;
+ break;
+ }
+ }
+ }
+ else if (c == '"')
+ {
+ if (!bInEscape)
+ {
+ //If this is the quote is the first of the couple which enclose the
+ //whole value, because the value contains special characters
+ //then we just drop it. That is, this character must be followed by
+ //a character which is not '"'.
+ if ( i + 1 < length && rRawString[i+1] == '"')
+ bInEscape = true;
+ else
+ bInValue = !bInValue; //value is enclosed in " "
+ }
+ else
+ {
+ //This quote is escaped by a preceding quote and therefore is
+ //part of the value
+ bInEscape = false;
+ }
+ }
+ else if (c == ',' || c == '+')
+ {
+ //The comma separate the attribute value pairs.
+ //If the comma is not part of a value (the value would then be enclosed in '"'),
+ //then we have reached the end of the value
+ if (!bInValue)
+ {
+ //The next char is the start of the new type
+ nTypeNameStart = i + 1;
+ }
+ }
+ }
+
+ //Found the Type Name, but there can still be spaces after the last comma
+ //and the beginning of the type.
+ if (bFound)
+ {
+ while (true)
+ {
+ sal_Unicode c = rRawString[nTypeNameStart];
+ if (c != ' ' && c != '\t')
+ //found
+ break;
+ nTypeNameStart ++;
+ }
+ // search end (one after last letter)
+ sal_Int32 nTypeNameEnd = nTypeNameStart;
+ nTypeNameEnd++;
+ while (true)
+ {
+ sal_Unicode c = rRawString[nTypeNameEnd];
+ if (c == ' ' || c == '\t' || c == '=')
+ break;
+ nTypeNameEnd++;
+ }
+ retVal = std::make_pair(nTypeNameStart, nTypeNameEnd);
+ }
+ else
+ {
+ retVal = std::make_pair(-1, -1);
+ }
+ return retVal;
+}
+
+
+/*
+ MS Crypto uses the 'S' tag (equal to the 'ST' tag in NSS), but the NSS can't recognise
+ it, so the 'S' tag should be changed to 'ST' tag. However I am not sure if this is necessary
+ anymore, because we provide always the signers certificate when signing. So libmlsec can find
+ the private key based on the provided certificate (X509Certificate element) and does not need
+ the issuer name (X509IssuerName element). The issuer name in the xml signature has also no
+ effect for the signature nor the certificate validation.
+ In many RFCs, for example 4519, on speaks of 'ST'. However, the certificate does not contain
+ strings for type names. Instead it uses OIDs.
+ */
+
+static OUString replaceTagSWithTagST(OUString const & oldDN)
+{
+ std::pair<sal_Int32, sal_Int32 > pairIndex = findTypeInDN(oldDN, "S");
+
+ if (pairIndex.first != -1)
+ {
+ return oldDN.copy(0, pairIndex.first)+"ST"+oldDN.copy(pairIndex.second);
+ }
+ return oldDN;
+}
+/* end */
+
+X509Certificate_MSCryptImpl::X509Certificate_MSCryptImpl() :
+ m_pCertContext( nullptr )
+{
+}
+
+X509Certificate_MSCryptImpl::~X509Certificate_MSCryptImpl() {
+ if( m_pCertContext != nullptr ) {
+ CertFreeCertificateContext( m_pCertContext ) ;
+ }
+}
+
+//Methods from XCertificate
+sal_Int16 SAL_CALL X509Certificate_MSCryptImpl::getVersion() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ return static_cast<char>(m_pCertContext->pCertInfo->dwVersion) ;
+ } else {
+ return -1 ;
+ }
+}
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getSerialNumber() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ Sequence< sal_Int8 > serial( m_pCertContext->pCertInfo->SerialNumber.cbData ) ;
+ for( unsigned int i = 0 ; i < m_pCertContext->pCertInfo->SerialNumber.cbData ; i ++ )
+ serial[i] = *( m_pCertContext->pCertInfo->SerialNumber.pbData + m_pCertContext->pCertInfo->SerialNumber.cbData - i - 1 ) ;
+
+ return serial ;
+ } else {
+ return Sequence< sal_Int8 >();
+ }
+}
+
+OUString SAL_CALL X509Certificate_MSCryptImpl::getIssuerName() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ DWORD cchIssuer = CertNameToStrW(
+ X509_ASN_ENCODING | PKCS_7_ASN_ENCODING ,
+ &( m_pCertContext->pCertInfo->Issuer ),
+ CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG ,
+ nullptr, 0
+ ) ;
+
+ // Here the cbIssuer count the last 0x00 , take care.
+ if( cchIssuer != 0 ) {
+ auto issuer = std::make_unique<wchar_t[]>(cchIssuer);
+
+ cchIssuer = CertNameToStrW(
+ X509_ASN_ENCODING | PKCS_7_ASN_ENCODING ,
+ &( m_pCertContext->pCertInfo->Issuer ),
+ CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG ,
+ issuer.get(), cchIssuer
+ ) ;
+
+ if( cchIssuer <= 0 ) {
+ throw RuntimeException() ;
+ }
+
+ if(issuer.get()[cchIssuer -1] == 0) cchIssuer--; //delimit the last 0x00;
+ OUString xIssuer(o3tl::toU(issuer.get()), cchIssuer) ;
+
+ return replaceTagSWithTagST(xIssuer);
+ } else {
+ return OUString() ;
+ }
+ } else {
+ return OUString() ;
+ }
+}
+
+OUString SAL_CALL X509Certificate_MSCryptImpl::getSubjectName()
+{
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr )
+ {
+ DWORD cchSubject = CertNameToStrW(
+ X509_ASN_ENCODING | PKCS_7_ASN_ENCODING ,
+ &( m_pCertContext->pCertInfo->Subject ),
+ CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG ,
+ nullptr, 0
+ ) ;
+
+ if( cchSubject != 0 )
+ {
+ auto subject = std::make_unique<wchar_t[]>(cchSubject);
+
+ cchSubject = CertNameToStrW(
+ X509_ASN_ENCODING | PKCS_7_ASN_ENCODING ,
+ &( m_pCertContext->pCertInfo->Subject ),
+ CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG ,
+ subject.get(), cchSubject
+ ) ;
+
+ if( cchSubject <= 0 ) {
+ throw RuntimeException() ;
+ }
+
+ OUString xSubject(o3tl::toU(subject.get()));
+
+ return replaceTagSWithTagST(xSubject);
+ } else
+ {
+ return OUString() ;
+ }
+ }
+ else
+ {
+ return OUString() ;
+ }
+}
+
+css::util::DateTime SAL_CALL X509Certificate_MSCryptImpl::getNotValidBefore() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ SYSTEMTIME explTime ;
+ DateTime dateTime ;
+ FILETIME localFileTime;
+
+ if (FileTimeToLocalFileTime(&( m_pCertContext->pCertInfo->NotBefore ), &localFileTime))
+ {
+ if( FileTimeToSystemTime( &localFileTime, &explTime ) ) {
+ //Convert the time to readable local time
+ dateTime.NanoSeconds = explTime.wMilliseconds * ::tools::Time::nanoPerMilli ;
+ dateTime.Seconds = explTime.wSecond ;
+ dateTime.Minutes = explTime.wMinute ;
+ dateTime.Hours = explTime.wHour ;
+ dateTime.Day = explTime.wDay ;
+ dateTime.Month = explTime.wMonth ;
+ dateTime.Year = explTime.wYear ;
+ }
+ }
+
+ return dateTime ;
+ } else {
+ return DateTime() ;
+ }
+}
+
+css::util::DateTime SAL_CALL X509Certificate_MSCryptImpl::getNotValidAfter() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ SYSTEMTIME explTime ;
+ DateTime dateTime ;
+ FILETIME localFileTime;
+
+ if (FileTimeToLocalFileTime(&( m_pCertContext->pCertInfo->NotAfter ), &localFileTime))
+ {
+ if( FileTimeToSystemTime( &localFileTime, &explTime ) ) {
+ //Convert the time to readable local time
+ dateTime.NanoSeconds = explTime.wMilliseconds * ::tools::Time::nanoPerMilli ;
+ dateTime.Seconds = explTime.wSecond ;
+ dateTime.Minutes = explTime.wMinute ;
+ dateTime.Hours = explTime.wHour ;
+ dateTime.Day = explTime.wDay ;
+ dateTime.Month = explTime.wMonth ;
+ dateTime.Year = explTime.wYear ;
+ }
+ }
+
+ return dateTime ;
+ } else {
+ return DateTime() ;
+ }
+}
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getIssuerUniqueID() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ Sequence< sal_Int8 > issuerUid( m_pCertContext->pCertInfo->IssuerUniqueId.cbData ) ;
+ for( unsigned int i = 0 ; i < m_pCertContext->pCertInfo->IssuerUniqueId.cbData; i ++ )
+ issuerUid[i] = *( m_pCertContext->pCertInfo->IssuerUniqueId.pbData + i ) ;
+
+ return issuerUid ;
+ } else {
+ return Sequence< sal_Int8 >();
+ }
+}
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getSubjectUniqueID() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr ) {
+ Sequence< sal_Int8 > subjectUid( m_pCertContext->pCertInfo->SubjectUniqueId.cbData ) ;
+ for( unsigned int i = 0 ; i < m_pCertContext->pCertInfo->SubjectUniqueId.cbData; i ++ )
+ subjectUid[i] = *( m_pCertContext->pCertInfo->SubjectUniqueId.pbData + i ) ;
+
+ return subjectUid ;
+ } else {
+ return Sequence< sal_Int8 >();
+ }
+}
+
+css::uno::Sequence< css::uno::Reference< css::security::XCertificateExtension > > SAL_CALL X509Certificate_MSCryptImpl::getExtensions() {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr && m_pCertContext->pCertInfo->cExtension != 0 ) {
+ CertificateExtension_XmlSecImpl* xExtn ;
+ Sequence< Reference< XCertificateExtension > > xExtns( m_pCertContext->pCertInfo->cExtension ) ;
+
+ for( unsigned int i = 0; i < m_pCertContext->pCertInfo->cExtension; i++ ) {
+ CERT_EXTENSION* pExtn = &(m_pCertContext->pCertInfo->rgExtension[i]) ;
+
+
+ OUString objId = OUString::createFromAscii( pExtn->pszObjId );
+
+ if ( objId == "2.5.29.17" )
+ xExtn = reinterpret_cast<CertificateExtension_XmlSecImpl*>(new SanExtensionImpl());
+ else
+ xExtn = new CertificateExtension_XmlSecImpl;
+
+ xExtn->setCertExtn( pExtn->Value.pbData, pExtn->Value.cbData, reinterpret_cast<unsigned char*>(pExtn->pszObjId), strlen( pExtn->pszObjId ), pExtn->fCritical ) ;
+
+ xExtns[i] = xExtn ;
+ }
+
+ return xExtns ;
+ } else {
+ return Sequence< Reference< XCertificateExtension > >();
+ }
+}
+
+css::uno::Reference< css::security::XCertificateExtension > SAL_CALL X509Certificate_MSCryptImpl::findCertificateExtension( const css::uno::Sequence< sal_Int8 >& /*oid*/ ) {
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr && m_pCertContext->pCertInfo->cExtension != 0 ) {
+ CertificateExtension_XmlSecImpl* xExtn ;
+
+ xExtn = nullptr ;
+ for( unsigned int i = 0; i < m_pCertContext->pCertInfo->cExtension; i++ ) {
+ CERT_EXTENSION* pExtn = &( m_pCertContext->pCertInfo->rgExtension[i] ) ;
+
+ //TODO: Compare the oid
+ if( false ) {
+ xExtn = new CertificateExtension_XmlSecImpl;
+ xExtn->setCertExtn( pExtn->Value.pbData, pExtn->Value.cbData, reinterpret_cast<unsigned char*>(pExtn->pszObjId), strlen( pExtn->pszObjId ), pExtn->fCritical ) ;
+ }
+ }
+
+ return xExtn ;
+ } else {
+ return nullptr ;
+ }
+}
+
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getEncoded() {
+ if( m_pCertContext != nullptr && m_pCertContext->cbCertEncoded > 0 ) {
+ Sequence< sal_Int8 > rawCert( m_pCertContext->cbCertEncoded ) ;
+
+ for( unsigned int i = 0 ; i < m_pCertContext->cbCertEncoded ; i ++ )
+ rawCert[i] = *( m_pCertContext->pbCertEncoded + i ) ;
+
+ return rawCert ;
+ } else {
+ return Sequence< sal_Int8 >();
+ }
+}
+
+//Helper methods
+void X509Certificate_MSCryptImpl::setMswcryCert( const CERT_CONTEXT* cert ) {
+ if( m_pCertContext != nullptr ) {
+ CertFreeCertificateContext( m_pCertContext ) ;
+ m_pCertContext = nullptr ;
+ }
+
+ if( cert != nullptr ) {
+ m_pCertContext = CertDuplicateCertificateContext( cert ) ;
+ }
+}
+
+const CERT_CONTEXT* X509Certificate_MSCryptImpl::getMswcryCert() const {
+ if( m_pCertContext != nullptr ) {
+ return m_pCertContext ;
+ } else {
+ return nullptr ;
+ }
+}
+
+void X509Certificate_MSCryptImpl::setRawCert( Sequence< sal_Int8 > const & rawCert ) {
+ if( m_pCertContext != nullptr ) {
+ CertFreeCertificateContext( m_pCertContext ) ;
+ m_pCertContext = nullptr ;
+ }
+
+ if( rawCert.getLength() != 0 ) {
+ m_pCertContext = CertCreateCertificateContext( X509_ASN_ENCODING, reinterpret_cast<const sal_uInt8*>(&rawCert[0]), rawCert.getLength() ) ;
+ }
+}
+
+/* XUnoTunnel */
+UNO3_GETIMPLEMENTATION_IMPL(X509Certificate_MSCryptImpl);
+
+static OUString findOIDDescription(char const *oid)
+{
+ OUString ouOID = OUString::createFromAscii( oid );
+ for (int i=0; i<nOID; i++)
+ {
+ OUString item = OUString::createFromAscii( OIDs[i].oid );
+ if (ouOID == item)
+ {
+ return OUString::createFromAscii( OIDs[i].desc );
+ }
+ }
+
+ return OUString() ;
+}
+
+static css::uno::Sequence< sal_Int8 > getThumbprint(const CERT_CONTEXT* pCertContext, DWORD dwPropId)
+{
+ if( pCertContext != nullptr )
+ {
+ DWORD cbData = dwPropId == CERT_SHA256_HASH_PROP_ID ? 32 : 20;
+ unsigned char fingerprint[32];
+ if (CertGetCertificateContextProperty(pCertContext, dwPropId, fingerprint, &cbData))
+ {
+ Sequence< sal_Int8 > thumbprint( cbData ) ;
+ for( unsigned int i = 0 ; i < cbData ; i ++ )
+ {
+ thumbprint[i] = fingerprint[i];
+ }
+
+ return thumbprint;
+ }
+ else
+ {
+ DWORD e = GetLastError();
+ cbData = e;
+ }
+ }
+
+ return Sequence< sal_Int8 >();
+}
+
+OUString SAL_CALL X509Certificate_MSCryptImpl::getSubjectPublicKeyAlgorithm()
+{
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr )
+ {
+ CRYPT_ALGORITHM_IDENTIFIER algorithm = m_pCertContext->pCertInfo->SubjectPublicKeyInfo.Algorithm;
+ return findOIDDescription( algorithm.pszObjId ) ;
+ }
+ else
+ {
+ return OUString() ;
+ }
+}
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getSubjectPublicKeyValue()
+{
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr )
+ {
+ CRYPT_BIT_BLOB publicKey = m_pCertContext->pCertInfo->SubjectPublicKeyInfo.PublicKey;
+
+ Sequence< sal_Int8 > key( publicKey.cbData ) ;
+ for( unsigned int i = 0 ; i < publicKey.cbData ; i++ )
+ {
+ key[i] = *(publicKey.pbData + i) ;
+ }
+
+ return key;
+ }
+ else
+ {
+ return Sequence< sal_Int8 >();
+ }
+}
+
+OUString SAL_CALL X509Certificate_MSCryptImpl::getSignatureAlgorithm()
+{
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr )
+ {
+ CRYPT_ALGORITHM_IDENTIFIER algorithm = m_pCertContext->pCertInfo->SignatureAlgorithm;
+ return findOIDDescription( algorithm.pszObjId ) ;
+ }
+ else
+ {
+ return OUString() ;
+ }
+}
+
+uno::Sequence<sal_Int8> X509Certificate_MSCryptImpl::getSHA256Thumbprint()
+{
+ return getThumbprint(m_pCertContext, CERT_SHA256_HASH_PROP_ID);
+}
+
+svl::crypto::SignatureMethodAlgorithm X509Certificate_MSCryptImpl::getSignatureMethodAlgorithm()
+{
+ svl::crypto::SignatureMethodAlgorithm nRet = svl::crypto::SignatureMethodAlgorithm::RSA;
+
+ if (!m_pCertContext || !m_pCertContext->pCertInfo)
+ return nRet;
+
+ CRYPT_ALGORITHM_IDENTIFIER algorithm = m_pCertContext->pCertInfo->SubjectPublicKeyInfo.Algorithm;
+ OString aObjId(algorithm.pszObjId);
+ if (aObjId == szOID_ECC_PUBLIC_KEY)
+ nRet = svl::crypto::SignatureMethodAlgorithm::ECDSA;
+
+ return nRet;
+}
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getSHA1Thumbprint()
+{
+ return getThumbprint(m_pCertContext, CERT_SHA1_HASH_PROP_ID);
+}
+
+css::uno::Sequence< sal_Int8 > SAL_CALL X509Certificate_MSCryptImpl::getMD5Thumbprint()
+{
+ return getThumbprint(m_pCertContext, CERT_MD5_HASH_PROP_ID);
+}
+
+CertificateKind SAL_CALL X509Certificate_MSCryptImpl::getCertificateKind()
+{
+ return CertificateKind_X509;
+}
+
+sal_Int32 SAL_CALL X509Certificate_MSCryptImpl::getCertificateUsage( )
+{
+ sal_Int32 usage =
+ CERT_DATA_ENCIPHERMENT_KEY_USAGE |
+ CERT_DIGITAL_SIGNATURE_KEY_USAGE |
+ CERT_KEY_AGREEMENT_KEY_USAGE |
+ CERT_KEY_CERT_SIGN_KEY_USAGE |
+ CERT_KEY_ENCIPHERMENT_KEY_USAGE |
+ CERT_NON_REPUDIATION_KEY_USAGE |
+ CERT_OFFLINE_CRL_SIGN_KEY_USAGE;
+
+ if( m_pCertContext != nullptr && m_pCertContext->pCertInfo != nullptr && m_pCertContext->pCertInfo->cExtension != 0 )
+ {
+ CERT_EXTENSION* pExtn = CertFindExtension(
+ szOID_KEY_USAGE,
+ m_pCertContext->pCertInfo->cExtension,
+ m_pCertContext->pCertInfo->rgExtension);
+
+ if (pExtn != nullptr)
+ {
+ DWORD length = 0;
+ bool rc = CryptDecodeObject(
+ X509_ASN_ENCODING,
+ X509_KEY_USAGE,
+ pExtn->Value.pbData,
+ pExtn->Value.cbData,
+ 0,
+ nullptr,
+ &length);
+
+ if (!rc)
+ SAL_WARN("xmlsecurity.xmlsec", "CryptDecodeObject failed: " << WindowsErrorString(GetLastError()));
+ else
+ {
+ std::vector<char>buffer(length);
+
+ rc = CryptDecodeObject(
+ X509_ASN_ENCODING,
+ X509_KEY_USAGE,
+ pExtn->Value.pbData,
+ pExtn->Value.cbData,
+ 0,
+ buffer.data(),
+ &length);
+
+ CRYPT_BIT_BLOB *blob = reinterpret_cast<CRYPT_BIT_BLOB*>(buffer.data());
+ if (!rc)
+ SAL_WARN("xmlsecurity.xmlsec", "CryptDecodeObject failed: " << WindowsErrorString(GetLastError()));
+ else if (blob->cbData == 1)
+ usage = blob->pbData[0];
+ else
+ SAL_WARN("xmlsecurity.xmlsec", "CryptDecodeObject(X509_KEY_USAGE) returned unexpected amount of data: " << blob->cbData);
+ }
+ }
+ }
+
+ return usage;
+}
+
+/* XServiceInfo */
+OUString SAL_CALL X509Certificate_MSCryptImpl::getImplementationName()
+{
+ return "com.sun.star.xml.security.gpg.XCertificate_MsCryptImpl";
+}
+
+/* XServiceInfo */
+sal_Bool SAL_CALL X509Certificate_MSCryptImpl::supportsService(const OUString& serviceName)
+{
+ return cppu::supportsService(this, serviceName);
+}
+
+/* XServiceInfo */
+Sequence<OUString> SAL_CALL X509Certificate_MSCryptImpl::getSupportedServiceNames()
+{
+ return { OUString() };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */