Enhance certificate verification and error handling

Author: pallakartheekreddy

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@project-sunbird/client-services",
-  "version": "8.0.5",
+  "version": "8.1.0",
   "description": "Type definitions and models for Sunbird platform clients",
   "main": "dist/index.js",
   "module": "src/index.ts",

src/utilities/certificate/certificate-verifier.ts

@@ -29,6 +29,14 @@ export class CertificateVerifier {
     public async verifyData(signedJSON, publicKey): Promise<any>{
         this.publicKey = publicKey;
         try {
+            // Ensure security context is in the document's @context array
+            if (signedJSON['@context'] && Array.isArray(signedJSON['@context'])) {
+                const securityContextV2 = 'https://w3id.org/security/v2';
+                if (signedJSON['@context'].indexOf(securityContextV2) === -1) {
+                    signedJSON['@context'].push(securityContextV2);
+                }
+            }
+            
             const {AssertionProofPurpose} = jsigs.purposes;
             let result;
             const publicKey = {
@@ -63,7 +71,19 @@ export class CertificateVerifier {
             return result;
 
         } catch (e) {
-            throw new Error('Invalid data');
+            // Improved error handling
+            console.error('Certificate verification error:', e);
+            const error = e as Error;
+            console.error('Error details:', {
+                message: error.message,
+                stack: error.stack,
+                name: error.name
+            });
+            // Preserve the original error if it's already a VerificationError
+            if ((error as any).name === 'VerificationError' || (error as any).verified === false) {
+                return e; // Return the error object as-is so caller can see details
+            }
+            throw new Error(`Invalid data: ${error.message || 'Unknown error'}`);
         }
     }
 
@@ -72,6 +92,7 @@ export class CertificateVerifier {
             "did:india": this.publicKey,
             "https://example.com/i/india": this.publicKey,
             "https://w3id.org/security/v1": contexts.get("https://w3id.org/security/v1"),
+            "https://w3id.org/security/v2": contexts.get("https://w3id.org/security/v2"), // Added v2
             'https://www.w3.org/2018/credentials#': credentialsv1,
             "https://www.w3.org/2018/credentials/v1": credentialsv1