Sign function writes the signed xml to a new file. Added supporting files for testing convenience.

tools/tcg_rim_tool_msdotnet/RimSignCert.pem

@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----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+xfDiE/qX34KxNe4ZmbvLH8N+BSujQXMMi56zGjW469Y/rbDMG8uU1dq3zqhO5b+d
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+cIEQ5OqfpdFrV3De238RhMH6J4xePSidnFpfBc6FrdyDI1A8eRFz36I4xfVL3ZnJ
+P/+j+NE4q6yz5VGvm0npLO394ZihtsI1sRAR8ORJ
+-----END CERTIFICATE-----

tools/tcg_rim_tool_msdotnet/generated_user_cert.swidtag

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<SoftwareIdentity xmlns="http://standards.iso.org/iso/19770/-2/2015/schema.xsd" xmlns:ns2="http://www.w3.org/2000/09/xmldsig#" corpus="false" name="Example.com BIOS" patch="false" supplemental="false" tagId="94f6b457-9ac9-4d35-9b3f-78804173b65as" tagVersion="0" version="01" versionScheme="multipartnumeric" xml:lang="en">
+  <Entity name="Example Inc" regid="http://Example.com" role="softwareCreator tagCreator"/>
+  <Link href="https://Example.com/support/ProductA/firmware/installfiles" rel="installationmedia"/>
+  <Meta xmlns:n8060="http://csrc.nist.gov/ns/swid/2015-extensions/1.0" xmlns:rim="https://trustedcomputinggroup.org/wp-content/uploads/TCG_RIM_Model" n8060:colloquialVersion="Firmware_2019" n8060:edition="12" n8060:product="ProductA" n8060:revision="r2" rim:BindingSpec="PC Client RIM" rim:BindingSpecVersion="1.2" rim:PayloadType="direct" rim:firmwareManufacturerId="00213022" rim:firmwareManufacturerStr="BIOSVendorA" rim:firmwareModel="A0" rim:firmwareVersion="12" rim:pcURIGlobal="https://Example.com/support/ProductA/" rim:pcURILocal="/boot/tcg/manifest/switag/" rim:platformManufacturerId="00201234" rim:platformManufacturerStr="Example.com" rim:platformModel="ProductA" rim:platformVersion="01"/>
+  <Payload xmlns:rim="https://trustedcomputinggroup.org/wp-content/uploads/TCG_RIM_Model" rim:supportRIMFormat="TCG_EventLog_Assertion" rim:supportRIMURIGlobal="https://Example.com/support/ProductA/firmware/rims/">
+    <Directory name="rim">
+      <File xmlns:SHA256="http://www.w3.org/2001/04/xmlenc#sha256" SHA256:hash="4479ca722623f8c47b703996ced3cbd981b06b1ae8a897db70137e0b7c546848" name="Example.com.BIOS.01.rimel" size="7549"/>
+    </Directory>
+  </Payload>
+  <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
+    <SignedInfo>
+      <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
+      <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
+      <Reference URI="">
+        <Transforms>
+          <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
+        </Transforms>
+        <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+        <DigestValue>97uWB7zSsO5WaGbrcQrlKd1Bju0aDTjK1/ktUYBje8A=</DigestValue>
+      </Reference>
+    </SignedInfo>
+    <SignatureValue>N1YtTeo2Ryuj+CtlXIpICEay+ni7vt8+4J7tAsYpa3efnLwtea69PIqEylPWm9LdA8Eo8XDdpgxV&#13;
+7h3hi2LTOU+Wxq3bLiLamo99T1EtIwl+ZPcOv8bsfEkmShHdMC0dlfcj6r7x4tc0XkNAhhJgfRNz&#13;
+FsmPWKJb6FYcsHFbHO/Uw1hSokbAGcWWTshEOqvKHMa8UVkrFMUPnrnMtdyJqZlhDBrZHNi4rWth&#13;
+8TjlUnQVSCF9s9I04FxJ1cUAdeVMHtXKM8Pvjv68PaJMJK73dW5Yd3SbcgoKLesf/HPWeeZL0rr4&#13;
+TNjlqJ/wq61Ons45MFG9bIscVbnd+XxFHx8Skw==</SignatureValue>
+    <KeyInfo>
+      <KeyValue>
+        <RSAKeyValue>
+          <Modulus>p3WVYaRJG7EABjbAdqDYZXFSTV1nHY9Ol9A5+W8t5xwBXBryZCGWxERGr5AryKWPxd+qzjj+cFpx&#13;
+xkM6N18jEhQIx/CEZePEJqpluBO5w2wTEOe7hqtMatqgDDMeDRxUuIpP8LGP00vh1wyDFFew90d9&#13;
+dvT3bcLvFh3a3ap9bTm6aBqPup5CXpzrwIU2wZfgkDytYVBm+8bHkMaUrgpNyM+5BAg2zl/Fqw0q&#13;
+otjaGr7PzbH+urCvaGbKLMPoWkVLIgAE8Qw98HTfoYSFHC7VYQySrzIinaOBFSgViR72kHemH2lW&#13;
+jDQeHiY0VIoPik/jVVIpjWe6zzeZ2S66Q/LmjQ==</Modulus>
+          <Exponent>AQAB</Exponent>
+        </RSAKeyValue>
+      </KeyValue>
+    </KeyInfo>
+  </Signature>
+</SoftwareIdentity>

tools/tcg_rim_tool_msdotnet/privateRimKey.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCndZVhpEkbsQAG
+NsB2oNhlcVJNXWcdj06X0Dn5by3nHAFcGvJkIZbEREavkCvIpY/F36rOOP5wWnHG
+Qzo3XyMSFAjH8IRl48QmqmW4E7nDbBMQ57uGq0xq2qAMMx4NHFS4ik/wsY/TS+HX
+DIMUV7D3R3129Pdtwu8WHdrdqn1tObpoGo+6nkJenOvAhTbBl+CQPK1hUGb7xseQ
+xpSuCk3Iz7kECDbOX8WrDSqi2Noavs/Nsf66sK9oZsosw+haRUsiAATxDD3wdN+h
+hIUcLtVhDJKvMiKdo4EVKBWJHvaQd6YfaVaMNB4eJjRUig+KT+NVUimNZ7rPN5nZ
+LrpD8uaNAgMBAAECggEAcnG8npd9U0x7HMQMcsZoPaPdwHvF/gCzkLNA+8RM1bZh
+A4ZzA5WlCQs0V8Wq9pyXjn7Wp8txsG1PdlT5k2AUgsVoXuR0R4IKyvYHQG9StEjH
+GvWURmwJdLlnSg8hSYqEJ/52taNUDO6+MI8fgiaQDd8w0ryF4OCpLy9GJdnfkGYZ
+Ayemb3USFUdj/S67NVqxnvAfFMM5FqkKGhkoy7wBRgO6eOeJvoTq8LMiPiponwwF
+DW409ZStbrk1f1Oszst/UvFUWA9BdDfeoPmFR61y3eB5zlMQG8Mhr2v5hvkj9TPX
+FU4Fm4EzZ1h/60cdWoP6XYCP7F2NqZ8N8u4UBQNAIQKBgQDcGIw5GJEvRF+FFTTR
+hYatMRn80DGTVjdT32MgajdKx05OWxBmQsFob34fiSnr0wAXPJeDXG4ruMBE2bSk
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+ovIy6vt6epj2yYg/wAs720+rhfXCmijSXj/ILXnZ+W/gMyHimKNe42boG2LFYhJZ
+Vg1R+7OAS3EHlD8ckeDs7Hrkp3gdymx0j1mZ+ZHKIIbwpPFxoRT2IBm9AoGBAI0Z
+bIK0puP8psKvPrgWluq42xwUl7XKLaX8dtqIjQ3PqGP7E8g2TJP9Y7UDWrDB5Xas
+gZi821R8Ts3o/DKukcgGxIgJjP4f4h9dwug4L1yWRxaBFB2tgHqqj/MBjxMtX/4M
+Zqdgg6mNQyBm3lyVAynuWRrX9DE0JYa2cQ2VvVkhAoGBAMBv/oT813w00759PmkO
+Uxv3LXTJuYBbq0Rmga25jN3ow8LrGQdSVg7F/af3I5KUF7mLiegDy1pkRfauyXH7
++WhEqnf86vDrzPpytDMxinWOQZusCqeWHb+nuVTuL3Fv+GxEdwVGYI/7lFJ7B//h
+P5rU93ZoYY7sWcGVqaaEkMRU
+-----END PRIVATE KEY-----

tools/tcg_rim_tool_msdotnet/xmlDsig.cs

@@ -21,14 +21,15 @@ class Rimtool
         var fileOption = new Option<string>(
             name: "--file",
             description: "The filename input for the command.",
-            parseArgument: result => 
+            parseArgument: result =>
             {
                 string? filePath = result.Tokens.Single().Value;
                 if (!File.Exists(filePath))
                 {
                     result.ErrorMessage = "File " + filePath + " does not exist.";
                     return null;
-                } else
+                }
+                else
                 {
                     return filePath;
                 }
@@ -124,8 +125,9 @@ class Rimtool
 
         // Append the element to the XML document.
         unsignedDoc.DocumentElement.AppendChild(unsignedDoc.ImportNode(xmlDigitalSignature, true));
-        //        unsignedDoc.Save(signedFilename);
-        Console.WriteLine("Xml signed.");
+        string signedFilename = "signed_" + xmlFilename;
+        unsignedDoc.Save(signedFilename);
+        Console.WriteLine("Xml signed and written to " + signedFilename);
     }
 
     // Verify the signature of an XML file against an asymmetric
@@ -183,7 +185,8 @@ class Rimtool
         if (isValid)
         {
             Console.WriteLine("Signature is valid!");
-        } else
+        }
+        else
         {
             Console.WriteLine("Signature is not valid.");
         }
@@ -201,3 +204,4 @@ class Rimtool
     }
 
 }
+