From 8e1be3799b0aca64983c6a7998d0ddb0d3529742 Mon Sep 17 00:00:00 2001
From: Gerhard Stoebich <deb2001-github@yahoo.de>
Date: Mon, 5 Nov 2018 17:07:48 +0100
Subject: [PATCH 1/2] crypto: allow monkey patching of pseudoRandomBytes

Make `pseudoRandomBytes` and it's aliases `prng` and `rng`
configurable to allow monkey patching.
---
 lib/crypto.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/crypto.js b/lib/crypto.js
index 2645e78e5eba21..daaa50267f9acf 100644
--- a/lib/crypto.js
+++ b/lib/crypto.js
@@ -247,12 +247,14 @@ Object.defineProperties(exports, {
   // The ecosystem needs those to exist for backwards compatibility.
   prng: {
     enumerable: false,
+    configurable: true,
     value: pendingDeprecation ?
       deprecate(randomBytes, 'crypto.prng is deprecated.', 'DEP0115') :
       randomBytes
   },
   pseudoRandomBytes: {
     enumerable: false,
+    configurable: true,
     value: pendingDeprecation ?
       deprecate(randomBytes,
                 'crypto.pseudoRandomBytes is deprecated.', 'DEP0115') :
@@ -260,6 +262,7 @@ Object.defineProperties(exports, {
   },
   rng: {
     enumerable: false,
+    configurable: true,
     value: pendingDeprecation ?
       deprecate(randomBytes, 'crypto.rng is deprecated.', 'DEP0115') :
       randomBytes

From fa4a6951cf9fbca5ae07fcf6b1b20ca7109b42a4 Mon Sep 17 00:00:00 2001
From: Gerhard Stoebich <deb2001-github@yahoo.de>
Date: Wed, 7 Nov 2018 18:33:04 +0100
Subject: [PATCH 2/2] set additionally writeable: true add test

---
 lib/crypto.js                       | 3 +++
 test/parallel/test-crypto-random.js | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/lib/crypto.js b/lib/crypto.js
index daaa50267f9acf..a3865ab7e46d9b 100644
--- a/lib/crypto.js
+++ b/lib/crypto.js
@@ -248,6 +248,7 @@ Object.defineProperties(exports, {
   prng: {
     enumerable: false,
     configurable: true,
+    writable: true,
     value: pendingDeprecation ?
       deprecate(randomBytes, 'crypto.prng is deprecated.', 'DEP0115') :
       randomBytes
@@ -255,6 +256,7 @@ Object.defineProperties(exports, {
   pseudoRandomBytes: {
     enumerable: false,
     configurable: true,
+    writable: true,
     value: pendingDeprecation ?
       deprecate(randomBytes,
                 'crypto.pseudoRandomBytes is deprecated.', 'DEP0115') :
@@ -263,6 +265,7 @@ Object.defineProperties(exports, {
   rng: {
     enumerable: false,
     configurable: true,
+    writable: true,
     value: pendingDeprecation ?
       deprecate(randomBytes, 'crypto.rng is deprecated.', 'DEP0115') :
       randomBytes
diff --git a/test/parallel/test-crypto-random.js b/test/parallel/test-crypto-random.js
index df06134e4326f9..4c85545b4e40b1 100644
--- a/test/parallel/test-crypto-random.js
+++ b/test/parallel/test-crypto-random.js
@@ -306,3 +306,12 @@ assert.throws(
     }
   );
 });
+
+
+['pseudoRandomBytes', 'prng', 'rng'].forEach((f) => {
+  const desc = Object.getOwnPropertyDescriptor(crypto, f);
+  assert.ok(desc);
+  assert.strictEqual(desc.configurable, true);
+  assert.strictEqual(desc.writable, true);
+  assert.strictEqual(desc.enumerable, false);
+});