Allow use of dsig11:X509Digest inside X509Data

Author: tvdijen

src/XML/ds/X509Data.php

@@ -10,6 +10,7 @@
 use SimpleSAML\XML\Constants as C;
 use SimpleSAML\XML\Exception\InvalidDOMElementException;
 use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
+use SimpleSAML\XMLSecurity\XML\dsig11\X509Digest;
 
 /**
  * Class representing a ds:X509Data element.
@@ -24,15 +25,16 @@ final class X509Data extends AbstractDsElement
      * @param (\SimpleSAML\XML\Chunk|
      *         \SimpleSAML\XMLSecurity\XML\ds\X509Certificate|
      *         \SimpleSAML\XMLSecurity\XML\ds\X509IssuerSerial|
-     *         \SimpleSAML\XMLSecurity\XML\ds\X509SubjectName)[] $data
+     *         \SimpleSAML\XMLSecurity\XML\ds\X509SubjectName|
+     *         \SimpleSAML\XMLSecurity\XML\dsig11\X509Digest)[] $data
      */
     public function __construct(
         protected array $data,
     ) {
         Assert::maxCount($data, C::UNBOUNDED_LIMIT);
         Assert::allIsInstanceOfAny(
             $data,
-            [Chunk::class, X509Certificate::class, X509IssuerSerial::class, X509SubjectName::class],
+            [Chunk::class, X509Certificate::class, X509IssuerSerial::class, X509SubjectName::class, X509Digest::class],
             InvalidArgumentException::class,
         );
     }
@@ -44,7 +46,8 @@ public function __construct(
      * @return (\SimpleSAML\XML\Chunk|
      *          \SimpleSAML\XMLSecurity\XML\ds\X509Certificate|
      *          \SimpleSAML\XMLSecurity\XML\ds\X509IssuerSerial|
-     *          \SimpleSAML\XMLSecurity\XML\ds\X509SubjectName)[]
+     *          \SimpleSAML\XMLSecurity\XML\ds\X509SubjectName|
+     *          \SimpleSAML\XMLSecurity\XML\dsig11\X509Digest)[]
      */
     public function getData(): array
     {
@@ -80,6 +83,7 @@ public static function fromXML(DOMElement $xml): static
                 'X509Certificate' => X509Certificate::fromXML($n),
                 'X509IssuerSerial' => X509IssuerSerial::fromXML($n),
                 'X509SubjectName' => X509SubjectName::fromXML($n),
+                'X509Digest' => X509Digest::fromXML($n),
                 default => new Chunk($n),
             };
         }

tests/XML/ds/X509DataTest.php

@@ -10,6 +10,9 @@
 use SimpleSAML\XML\DOMDocumentFactory;
 use SimpleSAML\XML\TestUtils\SchemaValidationTestTrait;
 use SimpleSAML\XML\TestUtils\SerializableElementTestTrait;
+use SimpleSAML\XMLSecurity\Constants as C;
+use SimpleSAML\XMLSecurity\CryptoEncoding\PEM;
+use SimpleSAML\XMLSecurity\Key;
 use SimpleSAML\XMLSecurity\TestUtils\PEMCertificatesMock;
 use SimpleSAML\XMLSecurity\XML\ds\AbstractDsElement;
 use SimpleSAML\XMLSecurity\XML\ds\X509Certificate;
@@ -18,8 +21,11 @@
 use SimpleSAML\XMLSecurity\XML\ds\X509IssuerSerial;
 use SimpleSAML\XMLSecurity\XML\ds\X509SerialNumber;
 use SimpleSAML\XMLSecurity\XML\ds\X509SubjectName;
+use SimpleSAML\XMLSecurity\XML\dsig11\X509Digest;
 
+use function base64_encode;
 use function dirname;
+use function hex2bin;
 use function openssl_x509_parse;
 use function str_replace;
 use function strval;
@@ -42,6 +48,8 @@ final class X509DataTest extends TestCase
     /** @var array<string, mixed> */
     private static array $certData;
 
+    /** @var string */
+    private static string $digest;
 
     /**
      */
@@ -78,6 +86,11 @@ public static function setUpBeforeClass(): void
         self::$certData = openssl_x509_parse(
             PEMCertificatesMock::getPlainCertificate(PEMCertificatesMock::SELFSIGNED_CERTIFICATE),
         );
+
+        $key = new Key\X509Certificate(PEM::fromString(PEMCertificatesMock::getPlainCertificate()));
+        /** @var string $binary */
+        $binary = hex2bin($key->getRawThumbprint(C::DIGEST_SHA256));
+        self::$digest = base64_encode($binary);
     }
 
 
@@ -101,6 +114,7 @@ public function testMarshalling(): void
                     new X509SerialNumber('2'),
                 ),
                 new X509SubjectName(self::$certData['name']),
+                new X509Digest(self::$digest, C::DIGEST_SHA256),
                 new Chunk(DOMDocumentFactory::fromString(
                     '<ssp:Chunk xmlns:ssp="urn:x-simplesamlphp:namespace">other</ssp:Chunk>',
                 )->documentElement),

tests/resources/xml/ds_X509Data.xml

@@ -6,5 +6,6 @@
     <ds:X509SerialNumber>2</ds:X509SerialNumber>
   </ds:X509IssuerSerial>
   <ds:X509SubjectName>/CN=selfsigned.simplesamlphp.org/O=SimpleSAMLphp HQ/L=Honolulu/ST=Hawaii/C=US</ds:X509SubjectName>
+  <dsig11:X509Digest xmlns:dsig11="http://www.w3.org/2009/xmldsig11#" Algorithm="http://www.w3.org/2001/04/xmlenc#sha256">6tN39Q9d6IevlAWLeM7lQGazUnVlJOe1wCk3sro2rfE=</dsig11:X509Digest>
   <ssp:Chunk xmlns:ssp="urn:x-simplesamlphp:namespace">other</ssp:Chunk>
 </ds:X509Data>