Stub out validateCertificatePath for later

2 files changed, 56 insertions, 1 deletions

diff --git a/src/attestation/verifications/verifyAndroidSafetyNet.ts b/src/attestation/verifications/verifyAndroidSafetyNet.ts
index 534b934..b052967 100644
--- a/src/attestation/verifications/verifyAndroidSafetyNet.ts
+++ b/src/attestation/verifications/verifyAndroidSafetyNet.ts
@@ -90,7 +90,7 @@ export default function verifyAttestationAndroidSafetyNet(
   }
 
   // TODO: Re-investigate this if we decide to "use MDS or Metadata Statements"
-  // WebauthnService.validateCertificatePath(fullpathCert);
+  // validateCertificatePath(fullpathCert);
   /**
    * END Verify Header
    */
diff --git a/src/helpers/validateCertificatePath.ts b/src/helpers/validateCertificatePath.ts
new file mode 100644
index 0000000..685ddd8
--- /dev/null
+++ b/src/helpers/validateCertificatePath.ts
@@ -0,0 +1,55 @@
+export default function validateCertificatePath(certificates: any[]) {
+  console.log('certificates', certificates);
+  return false;
+  // TODO: Re-investigate this if we decide to "use MDS or Metadata Statements"
+  // console.debug('validating certificate path');
+
+  // const uniqueCerts = new Set(certificates);
+
+  // if (uniqueCerts.size !== certificates.length) {
+  //   throw new Error('Certificate path could not be verified due to duplicate certificates');
+  // }
+
+  // certificates.forEach((subjectPEM, index) => {
+  //   const subjectCert = new jsrsasign.X509();
+  //   subjectCert.readCertPEM(subjectPEM);
+
+  //   let issuerPEM;
+  //   if (index + 1 >= certificates.length) {
+  //     console.debug('using subjectPEM as issuerPEM');
+  //     issuerPEM = subjectPEM;
+  //   } else {
+  //     console.debug('using next cert as issuerPEM');
+  //     issuerPEM = certificates[index + 1];
+  //   }
+
+  //   const issuerCert = new jsrsasign.X509();
+  //   issuerCert.readCertPEM(issuerPEM);
+
+  //   const subjectCertString = subjectCert.getSubjectString();
+  //   const issuerCertString = issuerCert.getSubjectString();
+  //   if (subjectCertString !== issuerCertString) {
+  //     console.error('subject strings didn\'t match');
+  //     console.debug('subjectCertString:', subjectCertString);
+  //     console.debug('issuerCertString:', issuerCertString);
+  //     throw new Error('Certificate issuers didn\'t match');
+  //   }
+
+  //   const subjectCertStruct = jsrsasign.ASN1HEX.getTLVbyList(subjectCert.hex, 0, [0]);
+  //   const algorithm = subjectCert.getSignatureAlgorithmField();
+  //   const signatureHex = subjectCert.getSignatureValueHex();
+
+  //   const Signature = new jsrsasign.crypto.Signature({ alg: algorithm });
+  //   Signature.init(issuerPEM);
+  //   Signature.updateHex(subjectCertStruct);
+
+  //   const sigVerified = Signature.verify(signatureHex);
+  //   if (!sigVerified) {
+  //     console.error('failed to validate certificate path');
+  //     console.debug('sigVerified:', sigVerified);
+  //     throw new Error('Certificate path could not be validated');
+  //   }
+  // });
+
+  // return true;
+}