feat(ext/crypto): export elliptic keys as "raw" (#14764)

This commit adds support for the "raw" format when exporting public ECDH/ECDSA keys via
the SubtleCrypto.exportKey method.

1 files changed, 18 insertions, 0 deletions

diff --git a/ext/crypto/00_crypto.js b/ext/crypto/00_crypto.js
index c825089e7..2b14a204e 100644
--- a/ext/crypto/00_crypto.js
+++ b/ext/crypto/00_crypto.js
@@ -3433,6 +3433,24 @@
 
   function exportKeyEC(format, key, innerKey) {
     switch (format) {
+      case "raw": {
+        // 1.
+        if (key[_type] !== "public") {
+          throw new DOMException(
+            "Key is not a public key",
+            "InvalidAccessError",
+          );
+        }
+
+        // 2.
+        const data = core.opSync("op_crypto_export_key", {
+          algorithm: key[_algorithm].name,
+          namedCurve: key[_algorithm].namedCurve,
+          format: "raw",
+        }, innerKey);
+
+        return data.buffer;
+      }
       case "pkcs8": {
         // 1.
         if (key[_type] !== "private") {