key derivation script

.gitignore

@@ -0,0 +1 @@
+masterKey.json

index.js

@@ -0,0 +1,35 @@
+const sodium = require('sodium-native')
+const crypto = require('hypercore-crypto')
+const fs = require('fs')
+
+var masterKey
+try {
+  masterKey = Buffer.from(JSON.parse(fs.readFileSync('./masterKey.json')))
+} catch (err) {
+  masterKey = generateMasterKey()
+}
+
+const keyPair1 = deriveKeyPair(masterKey, 0)
+printKeys(keyPair1)
+
+const keyPair2 = deriveKeyPair(masterKey, 1)
+printKeys(keyPair2)
+
+fs.writeFileSync('./masterKey.json', JSON.stringify(masterKey))
+
+function printKeys (keyPair) {
+  console.log('PUBLIC KEY:', keyPair.publicKey.toString('hex'))
+  console.log('SECRET KEY:', keyPair.secretKey.toString('hex'))
+}
+
+function deriveKeyPair (masterKey, id) {
+  const seed = sodium.sodium_malloc(sodium.crypto_kdf_KEYBYTES)
+  sodium.crypto_kdf_derive_from_key(seed, id, sodium.sodium_malloc(sodium.crypto_kdf_KEYBYTES), masterKey)
+  return crypto.keyPair(seed)
+}
+
+function generateMasterKey () {
+  const masterKey = sodium.sodium_malloc(sodium.crypto_kdf_KEYBYTES)
+  sodium.crypto_kdf_keygen(masterKey)
+  return masterKey
+}

package.json

@@ -0,0 +1,16 @@
+{
+  "name": "derived-keys",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "hypercore-crypto": "^1.0.0",
+    "multifeed": "^4.1.5",
+    "sodium-native": "^2.4.6"
+  }
+}

yarn.lock

@@ -0,0 +1,291 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+blake2b-wasm@^1.1.0:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/blake2b-wasm/-/blake2b-wasm-1.1.7.tgz#e4d075da10068e5d4c3ec1fb9accc4d186c55d81"
+  integrity sha512-oFIHvXhlz/DUgF0kq5B1CqxIDjIJwh9iDeUUGQUcvgiGz7Wdw03McEO7CfLBy7QKGdsydcMCgO9jFNBAFCtFcA==
+  dependencies:
+    nanoassert "^1.0.0"
+
+blake2b@^2.1.1:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/blake2b/-/blake2b-2.1.3.tgz#f5388be424768e7c6327025dad0c3c6d83351bca"
+  integrity sha512-pkDss4xFVbMb4270aCyGD3qLv92314Et+FsKzilCLxDz5DuZ2/1g3w4nmBbu6nKApPspnjG7JcwTjGZnduB1yg==
+  dependencies:
+    blake2b-wasm "^1.1.0"
+    nanoassert "^1.0.0"
+
+buffer-alloc-unsafe@^1.0.0, buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+  integrity sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==
+
+buffer-alloc@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  integrity sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+  integrity sha1-+PeLdniYiO858gXNY39o5wISKyw=
+
+buffer-from@^1.0.0, buffer-from@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
+  integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
+
+core-util-is@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
+  integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
+
+debug@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+  integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
+  dependencies:
+    ms "^2.1.1"
+
+hypercore-crypto@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/hypercore-crypto/-/hypercore-crypto-1.0.0.tgz#90dfd2c77364483d24af204b9a99136cb6320de6"
+  integrity sha512-xFwOnNlOt8L+SovC7dTNchKaNYJb5l8rKZZwpWQnCme1r7CU4Hlhp1RDqPES6b0OpS7DkTo9iU0GltQGkpsjMw==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-from "^1.1.0"
+    sodium-universal "^2.0.0"
+    uint64be "^2.0.2"
+
+hypercore-protocol@^6.8.0:
+  version "6.12.0"
+  resolved "https://registry.yarnpkg.com/hypercore-protocol/-/hypercore-protocol-6.12.0.tgz#0fafa7c047a7e4c35b2d77639e2489f60d7b1a0d"
+  integrity sha512-T3oy9/7QFejqJX2RGcCUU1944e5/eKbLlSz9JPTNN1QbYFJgat/r7eTyOO8SMSLUimUmQx6YBMKhgYbdKzp7Bw==
+  dependencies:
+    buffer-alloc-unsafe "^1.0.0"
+    buffer-from "^1.0.0"
+    inherits "^2.0.3"
+    protocol-buffers-encodings "^1.1.0"
+    readable-stream "^2.2.6"
+    sodium-universal "^2.0.0"
+    sorted-indexof "^1.0.0"
+    varint "^5.0.0"
+
+inherits@^2.0.3, inherits@~2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
+
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+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
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+
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+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
+  integrity sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=
+
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+  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
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+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
+  dependencies:
+    minimist "0.0.8"
+
+ms@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
+
+multifeed@^4.1.5:
+  version "4.1.10"
+  resolved "https://registry.yarnpkg.com/multifeed/-/multifeed-4.1.10.tgz#1ec2a188910ec3396d0edd56d537daa91581d842"
+  integrity sha512-CW3IkzCRte6MLYBe48rcieVTW/4H4IpkYKmJZ88596WMkso0lauY5yPUAwR4GF7YUMeskoD0OpffierT8S1Vdg==
+  dependencies:
+    debug "^4.1.0"
+    hypercore-protocol "^6.8.0"
+    inherits "^2.0.3"
+    mutexify "^1.2.0"
+    random-access-file "^2.0.1"
+    through2 "^3.0.0"
+
+mutexify@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mutexify/-/mutexify-1.2.0.tgz#45597975a2b035f56dcf61ff15cc8d73c28e7639"
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+
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+  version "2.14.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
+  integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
+
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+  resolved "https://registry.yarnpkg.com/nanoassert/-/nanoassert-1.1.0.tgz#4f3152e09540fde28c76f44b19bbcd1d5a42478d"
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+
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+  resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.1.1.tgz#d7270b5d86717068d114cc57fff352f96d745feb"
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+
+process-nextick-args@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
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+
+protocol-buffers-encodings@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/protocol-buffers-encodings/-/protocol-buffers-encodings-1.1.0.tgz#f3905631106669b85381bad47a336add7d206873"
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+  dependencies:
+    signed-varint "^2.0.1"
+    varint "^5.0.0"
+
+random-access-file@^2.0.1:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/random-access-file/-/random-access-file-2.1.3.tgz#642c4b29e39c7dd91609a2e912f174d70fd4f82a"
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+  dependencies:
+    mkdirp "^0.5.1"
+    random-access-storage "^1.1.1"
+
+random-access-storage@^1.1.1:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/random-access-storage/-/random-access-storage-1.4.0.tgz#cbe5b5ccfb38680aac7b78a050d9f0a5ef36841f"
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+  dependencies:
+    inherits "^2.0.3"
+
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+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
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+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
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+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.3"
+    isarray "~1.0.0"
+    process-nextick-args "~2.0.0"
+    safe-buffer "~5.1.1"
+    string_decoder "~1.1.1"
+    util-deprecate "~1.0.1"
+
+safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
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+
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+    varint "~5.0.0"
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+  resolved "https://registry.yarnpkg.com/siphash24/-/siphash24-1.1.1.tgz#94ad021a2b2c62de381b546ee02df0cf778acd50"
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+  dependencies:
+    nanoassert "^1.0.0"
+
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+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/sodium-javascript/-/sodium-javascript-0.5.5.tgz#40b7b530390931f45164173582dca51d4e37e84d"
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+  dependencies:
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+    nanoassert "^1.0.0"
+    siphash24 "^1.0.1"
+    xsalsa20 "^1.0.0"
+
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+  version "2.4.6"
+  resolved "https://registry.yarnpkg.com/sodium-native/-/sodium-native-2.4.6.tgz#8a8173095e8cf4f997de393a2ba106c34870cac2"
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+  dependencies:
+    ini "^1.3.5"
+    nan "^2.14.0"
+    node-gyp-build "^4.1.0"
+
+sodium-universal@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/sodium-universal/-/sodium-universal-2.0.0.tgz#cfb4e1a9c4afece4382b2c23c53439b443bd2af3"
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+  dependencies:
+    sodium-javascript "~0.5.0"
+  optionalDependencies:
+    sodium-native "^2.0.0"
+
+sorted-indexof@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/sorted-indexof/-/sorted-indexof-1.0.0.tgz#17c742ff7cf187e2f59a15df9b81f17a62ce0899"
+  integrity sha1-F8dC/3zxh+L1mhXfm4HxemLOCJk=
+
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+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.3.0.tgz#42f114594a46cf1a8e30b0a84f56c78c3edac21e"
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+  dependencies:
+    safe-buffer "~5.2.0"
+
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+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
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+  dependencies:
+    safe-buffer "~5.1.0"
+
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+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-3.0.1.tgz#39276e713c3302edf9e388dd9c812dd3b825bd5a"
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+  dependencies:
+    readable-stream "2 || 3"
+
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+  resolved "https://registry.yarnpkg.com/uint64be/-/uint64be-2.0.2.tgz#ef4a179752fe8f9ddaa29544ecfc13490031e8e5"
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+  dependencies:
+    buffer-alloc "^1.1.0"
+
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+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
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+  integrity sha1-2Ca4n3SQcy+rwMDtaT7Uddyynr8=
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+  resolved "https://registry.yarnpkg.com/xsalsa20/-/xsalsa20-1.0.2.tgz#46cc53439d543d88782e42dfada5c5a69ab6314d"
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