Add node modules and compiled JavaScript from main (#54)

Co-authored-by: Oliver King <oking3@uncc.edu>

node_modules/jose/lib/jwa/eddsa.js

@@ -0,0 +1,24 @@
+const { sign: signOneShot, verify: verifyOneShot } = require('crypto')
+
+const { KEYOBJECT } = require('../help/consts')
+const { edDSASupported } = require('../help/runtime_support')
+
+const sign = ({ [KEYOBJECT]: keyObject }, payload) => {
+  if (typeof payload === 'string') {
+    payload = Buffer.from(payload)
+  }
+  return signOneShot(undefined, payload, keyObject)
+}
+
+const verify = ({ [KEYOBJECT]: keyObject }, payload, signature) => {
+  return verifyOneShot(undefined, payload, keyObject, signature)
+}
+
+module.exports = (JWA, JWK) => {
+  if (edDSASupported) {
+    JWA.sign.set('EdDSA', sign)
+    JWA.verify.set('EdDSA', verify)
+    JWK.OKP.sign.EdDSA = key => key.private && JWK.OKP.verify.EdDSA(key)
+    JWK.OKP.verify.EdDSA = key => (key.use === 'sig' || key.use === undefined) && key.keyObject.asymmetricKeyType.startsWith('ed')
+  }
+}