Updating hashing algorithm to md5 so we can support node 18 (#33)

* Updating hashing algorithm to md5 so we can support node 18

* upgrading nock

.circleci/config.yml

@@ -12,6 +12,7 @@ workflows:
                 - "12.13"
                 - "14.20"
                 - "16.17"
+                - "18.17"
 
 jobs:
   build:

package.json

@@ -1,6 +1,6 @@
 {
   "name": "talis-node",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "",
   "main": "index.js",
   "scripts": {
@@ -31,7 +31,7 @@
     "jshint": "2.10.1",
     "leche": "2.2.3",
     "mocha": "5.2.0",
-    "nock": "7.2.2",
+    "nock": "13.3.3",
     "nyc": "13.3.0",
     "proxyquire": "2.1.0",
     "rewire": "2.1.4",

persona/client/lib/hash-key.js

@@ -1,14 +1,14 @@
 var crypto = require('crypto');
 
 /**
- * Hash a key using md4 & base64 encoding. Md4 is used as the implementation
- * in node is the fastest hashing alg supported.
+ * Hash a key using md5 & base64 encoding.
+ *
  * @param {string} key value to hash
  * @return {string} hashed key
  */
 var hashKey = function hashKey(key) {
     return crypto
-        .createHash('md4')
+        .createHash('md5')
         .update(key)
         .digest('base64');
 };

persona/test/unit/hash-key.js

@@ -11,15 +11,15 @@ describe('hash-key', function() {
         [
             {
                 key: 'key',
-                hash: 'v6DpRaPd9vWLlfoxg3ke0Q==',
+                hash: 'PG4LipwVIkqCKLmpjKFTHQ==',
             },
             {
                 key: 'data',
-                hash: 'U5CAuieM9M9NsuSjJkL/MA=='
+                hash: 'jXd/OF09/siBXSD3SWAm3A=='
             },
             {
                 key: 'www.talis.com',
-                hash: 'MLXjuG895/5cv8ynX60Yyg=='
+                hash: '+ndbTPexWjfadqriJyG+vA=='
             }
         ].forEach(function(test) {
             hashKey(test.key).should.equal(test.hash);