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

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

node_modules/jose/lib/jwk/key/ec.js

@@ -0,0 +1,110 @@
+const { generateKeyPairSync, generateKeyPair: async } = require('crypto')
+const { promisify } = require('util')
+
+const {
+  THUMBPRINT_MATERIAL, JWK_MEMBERS, PUBLIC_MEMBERS,
+  PRIVATE_MEMBERS, KEY_MANAGEMENT_DECRYPT, KEY_MANAGEMENT_ENCRYPT
+} = require('../../help/consts')
+const { EC_CURVES } = require('../../registry')
+const { keyObjectSupported } = require('../../help/runtime_support')
+const { createPublicKey, createPrivateKey } = require('../../help/key_object')
+
+const errors = require('../../errors')
+
+const Key = require('./base')
+
+const generateKeyPair = promisify(async)
+
+const EC_PUBLIC = new Set(['crv', 'x', 'y'])
+Object.freeze(EC_PUBLIC)
+const EC_PRIVATE = new Set([...EC_PUBLIC, 'd'])
+Object.freeze(EC_PRIVATE)
+
+// Elliptic Curve Key Type
+class ECKey extends Key {
+  constructor (...args) {
+    super(...args)
+    this[JWK_MEMBERS]()
+    Object.defineProperty(this, 'kty', { value: 'EC', enumerable: true })
+    if (!EC_CURVES.has(this.crv)) {
+      throw new errors.JOSENotSupported('unsupported EC key curve')
+    }
+  }
+
+  static get [PUBLIC_MEMBERS] () {
+    return EC_PUBLIC
+  }
+
+  static get [PRIVATE_MEMBERS] () {
+    return EC_PRIVATE
+  }
+
+  // https://tc39.github.io/ecma262/#sec-ordinaryownpropertykeys no need for any special
+  // JSON.stringify handling in V8
+  [THUMBPRINT_MATERIAL] () {
+    return { crv: this.crv, kty: 'EC', x: this.x, y: this.y }
+  }
+
+  [KEY_MANAGEMENT_ENCRYPT] () {
+    return this.algorithms('deriveKey')
+  }
+
+  [KEY_MANAGEMENT_DECRYPT] () {
+    if (this.public) {
+      return new Set()
+    }
+    return this.algorithms('deriveKey')
+  }
+
+  static async generate (crv = 'P-256', privat = true) {
+    if (!EC_CURVES.has(crv)) {
+      throw new errors.JOSENotSupported(`unsupported EC key curve: ${crv}`)
+    }
+
+    let privateKey, publicKey
+
+    if (keyObjectSupported) {
+      ({ privateKey, publicKey } = await generateKeyPair('ec', { namedCurve: crv }))
+      return privat ? privateKey : publicKey
+    }
+
+    ({ privateKey, publicKey } = await generateKeyPair('ec', {
+      namedCurve: crv,
+      publicKeyEncoding: { type: 'spki', format: 'pem' },
+      privateKeyEncoding: { type: 'pkcs8', format: 'pem' }
+    }))
+
+    if (privat) {
+      return createPrivateKey(privateKey)
+    } else {
+      return createPublicKey(publicKey)
+    }
+  }
+
+  static generateSync (crv = 'P-256', privat = true) {
+    if (!EC_CURVES.has(crv)) {
+      throw new errors.JOSENotSupported(`unsupported EC key curve: ${crv}`)
+    }
+
+    let privateKey, publicKey
+
+    if (keyObjectSupported) {
+      ({ privateKey, publicKey } = generateKeyPairSync('ec', { namedCurve: crv }))
+      return privat ? privateKey : publicKey
+    }
+
+    ({ privateKey, publicKey } = generateKeyPairSync('ec', {
+      namedCurve: crv,
+      publicKeyEncoding: { type: 'spki', format: 'pem' },
+      privateKeyEncoding: { type: 'pkcs8', format: 'pem' }
+    }))
+
+    if (privat) {
+      return createPrivateKey(privateKey)
+    } else {
+      return createPublicKey(publicKey)
+    }
+  }
+}
+
+module.exports = ECKey