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Author: javascript-2020

blog/26-04-26/x509-certificates-in-js---encrypt-decrypt-data/ex/rsa-encrypt-decrypt-browser.js

@@ -1,10 +1,13 @@
 
 
 
+        var forge;
+        
 !async function(){
                                                                                 console.clear();
 
-        var {forge}             = await import('https://libs.ext-code.com/external/js/node-forge/node-forge.m.js');
+        var url                 = 'https://libs.ext-code.com/external/js/node-forge/node-forge.m.js';
+        ({forge}                = await import(url));
 
         var {key,cert}          = setup();
 
@@ -26,7 +29,6 @@
 }();
 
 
-
         function extract_spki(cert){
                                                                                 //  requires node-forge
               var cert          = forge.pki.certificateFromPem(cert);
@@ -37,7 +39,27 @@
 
         }//extract_spki
 
-        
+async function pub_key(cert) {
+  // Extract raw SPKI bytes without Node-specific modules
+  const spki = extract_spki_der(cert);
+  const buf = spki.buffer;
+  
+  // Use the environment's global Web Crypto interface.
+  // Note: We use globalThis.crypto to ensure we aren't accidentally
+  // accessing a variable bound by a 'require' statement.
+  const webCrypto = globalThis.crypto?.subtle || globalThis.crypto;
+  
+  const importedKey = await webCrypto.importKey(
+    'spki',
+    buf,
+    { name: 'RSA-OAEP', hash: 'SHA-256' },
+    true,
+    ['encrypt']
+  );
+  
+  return importedKey;
+}
+/*
         async function pub_key(cert){
         
               var spki      = extract_spki(cert);
@@ -46,8 +68,8 @@
               return pub_key;
               
         }//pub_key
-        
-        
+*/
+
         async function encrypt(blob,cert){
 
               var publicKey     = await pub_key(cert);