crypto: cleanup webcrypto jwk code

PR-URL: nodejs/node#42562
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Zeyu Yang <[email protected]>
Reviewed-By: Akhil Marsonya <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: panva

lib/internal/crypto/dsa.js

@@ -7,11 +7,9 @@ const {
 
 const {
   DSAKeyExportJob,
-  KeyObjectHandle,
   SignJob,
   kCryptoJobAsync,
   kSigEncDER,
-  kKeyTypePrivate,
   kSignJobModeSign,
   kSignJobModeVerify,
 } = internalBinding('crypto');
@@ -29,8 +27,6 @@ const {
 
 const {
   InternalCryptoKey,
-  PrivateKeyObject,
-  PublicKeyObject,
   createPrivateKey,
   createPublicKey,
   isKeyObject,
@@ -45,7 +41,6 @@ const {
   hasAnyNotIn,
   jobPromise,
   normalizeHashName,
-  validateKeyOps,
   kKeyObject,
   kHandle,
 } = require('internal/crypto/util');
@@ -178,52 +173,6 @@ async function dsaImportKey(
       });
       break;
     }
-    case 'jwk': {
-      if (keyData == null || typeof keyData !== 'object')
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
-
-      verifyAcceptableDsaKeyUse(
-        algorithm.name,
-        keyData.x !== undefined ? 'private' : 'public',
-        usagesSet);
-
-      if (keyData.kty !== 'DSA')
-        throw lazyDOMException('Invalid key type', 'DataError');
-
-      if (usagesSet.size > 0 &&
-          keyData.use !== undefined &&
-          keyData.use !== 'sig') {
-        throw lazyDOMException('Invalid use type', 'DataError');
-      }
-
-      validateKeyOps(keyData.key_ops, usagesSet);
-
-      if (keyData.ext !== undefined &&
-          keyData.ext === false &&
-          extractable === true) {
-        throw lazyDOMException('JWK is not extractable', 'DataError');
-      }
-
-      if (keyData.alg !== undefined) {
-        if (typeof keyData.alg !== 'string')
-          throw lazyDOMException('Invalid alg', 'DataError');
-        const hash =
-          normalizeHashName(keyData.alg, normalizeHashName.kContextWebCrypto);
-        if (hash !== algorithm.hash.name)
-          throw lazyDOMException('Hash mismatch', 'DataError');
-      }
-
-      const handle = new KeyObjectHandle();
-      const type = handle.initJwk(keyData);
-      if (type === undefined)
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
-
-      keyObject = type === kKeyTypePrivate ?
-        new PrivateKeyObject(handle) :
-        new PublicKeyObject(handle);
-
-      break;
-    }
     default:
       throw lazyDOMException(
         `Unable to import DSA key with format ${format}`,

lib/internal/crypto/webcrypto.js

@@ -403,11 +403,6 @@ async function exportKeyJWK(key) {
         key.algorithm.hash.name,
         normalizeHashName.kContextJwkHmac);
       return jwk;
-    case 'NODE-DSA':
-      jwk.alg = normalizeHashName(
-        key.algorithm.hash.name,
-        normalizeHashName.kContextJwkDsa);
-      return jwk;
     case 'NODE-ED25519':
       // Fall through
     case 'NODE-ED448':