From 4774a231b9a5f7aa69964b260d332ab0714bd2b3 Mon Sep 17 00:00:00 2001
From: Franck Royer <franck@status.im>
Date: Wed, 20 Jul 2022 20:35:05 +1000
Subject: [PATCH] chore: remove iso-random-stream dependency

This dependency brings in NodeJS's `Buffer` which then needs to be
polyfilled in the browser.

@noble/secp256k1 already brings a utility that switch between Node's and
the browser's `randomBytes` interfaces.
---
 benchmark/ed25519/compat.cjs   | 2 +-
 benchmark/ed25519/index.cjs    | 2 +-
 benchmark/ed25519/package.json | 1 -
 package.json                   | 1 -
 src/random-bytes.ts            | 4 ++--
 5 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/benchmark/ed25519/compat.cjs b/benchmark/ed25519/compat.cjs
index f8b54a7f..e8e31e4a 100644
--- a/benchmark/ed25519/compat.cjs
+++ b/benchmark/ed25519/compat.cjs
@@ -16,12 +16,12 @@ const forge = require('node-forge/lib/forge')
  * function because key generation is deterministic for a given seed.
  */
 
-const randomBytes = require('iso-random-stream/src/random')
 const { concat } = require('uint8arrays/concat')
 const { fromString } = require('uint8arrays/from-string')
 
 const native = require('ed25519')
 const noble = require('@noble/ed25519')
+const { randomBytes } = noble.utils
 const { subtle } = require('crypto').webcrypto
 require('node-forge/lib/ed25519')
 const stable = require('@stablelib/ed25519')
diff --git a/benchmark/ed25519/index.cjs b/benchmark/ed25519/index.cjs
index 6319da1f..12876016 100644
--- a/benchmark/ed25519/index.cjs
+++ b/benchmark/ed25519/index.cjs
@@ -2,9 +2,9 @@
 // @ts-expect-error types are missing
 const forge = require('node-forge/lib/forge')
 const Benchmark = require('benchmark')
-const randomBytes = require('iso-random-stream/src/random')
 const native = require('ed25519')
 const noble = require('@noble/ed25519')
+const { randomBytes } = noble.utils
 const { subtle } = require('crypto').webcrypto
 require('node-forge/lib/ed25519')
 const stable = require('@stablelib/ed25519')
diff --git a/benchmark/ed25519/package.json b/benchmark/ed25519/package.json
index e3f66766..869564df 100644
--- a/benchmark/ed25519/package.json
+++ b/benchmark/ed25519/package.json
@@ -13,7 +13,6 @@
     "benchmark": "^2.1.4",
     "ed25519": "^0.0.5",
     "ed25519-wasm-pro": "^1.1.1",
-    "iso-random-stream": "^2.0.0",
     "node-forge": "^1.0.0",
     "supercop.wasm": "^5.0.1"
   }
diff --git a/package.json b/package.json
index ff9e6ea1..85b638c7 100644
--- a/package.json
+++ b/package.json
@@ -178,7 +178,6 @@
     "@noble/ed25519": "^1.6.0",
     "@noble/secp256k1": "^1.5.4",
     "err-code": "^3.0.1",
-    "iso-random-stream": "^2.0.0",
     "multiformats": "^9.4.5",
     "node-forge": "^1.1.0",
     "protons-runtime": "^1.0.4",
diff --git a/src/random-bytes.ts b/src/random-bytes.ts
index 2dfbc186..d0018262 100644
--- a/src/random-bytes.ts
+++ b/src/random-bytes.ts
@@ -1,9 +1,9 @@
-import isoRandomBytes from 'iso-random-stream/src/random.js'
+import { utils } from "@noble/secp256k1"
 import errcode from 'err-code'
 
 export default function randomBytes (length: number): Uint8Array {
   if (isNaN(length) || length <= 0) {
     throw errcode(new Error('random bytes length must be a Number bigger than 0'), 'ERR_INVALID_LENGTH')
   }
-  return isoRandomBytes(length)
+  return utils.randomBytes(length)
 }