From e54236d05715d952f030524df03b1d8c1f99e60e Mon Sep 17 00:00:00 2001
From: Erik Michelson <github@erik.michelson.eu>
Date: Mon, 26 Apr 2021 17:05:20 +0200
Subject: [PATCH 1/2] Remove unneeded polyfill

This polyfill was added because node versions less than 10.5.0 didn't include scrypt support. As we now raised the minimum required version to 12.0.0, this polyfill isn't needed anymore.

Signed-off-by: Erik Michelson <opensource@erik.michelson.eu>
---
 lib/models/user.js | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/lib/models/user.js b/lib/models/user.js
index 26a557a77..383be1a72 100644
--- a/lib/models/user.js
+++ b/lib/models/user.js
@@ -1,15 +1,6 @@
 'use strict'
 // external modules
 const Sequelize = require('sequelize')
-const crypto = require('crypto')
-if (!crypto.scrypt) {
-  // polyfill for node.js 8.0, see https://github.com/chrisveness/scrypt-kdf#openssl-implementation
-  const scryptAsync = require('scrypt-async')
-  crypto.scrypt = function (password, salt, keylen, options, callback) {
-    const opt = Object.assign({}, options, { dkLen: keylen })
-    scryptAsync(password, salt, opt, (derivedKey) => callback(null, Buffer.from(derivedKey)))
-  }
-}
 const scrypt = require('scrypt-kdf')
 
 // core

From 0a1bf3ca1dd8c6558a13d27b389e7e96359a01b9 Mon Sep 17 00:00:00 2001
From: David Mehren <git@herrmehren.de>
Date: Mon, 26 Apr 2021 20:38:53 +0200
Subject: [PATCH 2/2] Uninstall scrypt-async

Signed-off-by: David Mehren <git@herrmehren.de>
---
 package.json | 1 -
 yarn.lock    | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/package.json b/package.json
index 3fe386546..8496ad130 100644
--- a/package.json
+++ b/package.json
@@ -115,7 +115,6 @@
     "readline-sync": "^1.4.7",
     "reveal.js": "^3.9.2",
     "rimraf": "^3.0.2",
-    "scrypt-async": "^2.0.1",
     "scrypt-kdf": "^2.0.1",
     "select2": "^3.5.2-browserify",
     "sequelize": "^5.21.1",
diff --git a/yarn.lock b/yarn.lock
index 6f6a95c79..3447585b6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9451,11 +9451,6 @@ script-loader@0.7.2:
   dependencies:
     raw-loader "~0.5.1"
 
-scrypt-async@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/scrypt-async/-/scrypt-async-2.0.1.tgz#4318dae48a8b7cc3b8fe05f75f4164a7d973d25d"
-  integrity sha512-wHR032jldwZNy7Tzrfu7RccOgGf8r5hyDMSP2uV6DpLiBUsR8JsDcx/in73o2UGVVrH5ivRFdNsFPcjtl3LErQ==
-
 scrypt-kdf@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/scrypt-kdf/-/scrypt-kdf-2.0.1.tgz#3355224c52d398331b2cbf2b70a7be26b52c53e6"