From 0fc5fbbf35ed0fc214c0f9ba600815cd75e70b6a Mon Sep 17 00:00:00 2001
From: Josh Harvey <josh@lamassu.is>
Date: Wed, 12 Apr 2017 22:16:30 +0300
Subject: [PATCH] add lamassu-mnemonic

---
 bin/lamassu-mnemonic | 12 ++++++++++++
 package.json         |  4 +++-
 yarn.lock            | 21 ++++++++++++++++++++-
 3 files changed, 35 insertions(+), 2 deletions(-)
 create mode 100755 bin/lamassu-mnemonic

diff --git a/bin/lamassu-mnemonic b/bin/lamassu-mnemonic
new file mode 100755
index 00000000..d5ae4c69
--- /dev/null
+++ b/bin/lamassu-mnemonic
@@ -0,0 +1,12 @@
+const fs = require('fs')
+const bip39 = require('bip39')
+
+const options = require('../lib/options')
+
+const seed = fs.readFileSync(options.seedPath, 'utf8').trim()
+
+const words = bip39.entropyToMnemonic(seed).split(' ')
+
+for (let i = 0; i < words.length; i += 6) {
+  console.log(words.slice(i, i + 6).join(' '))
+}
diff --git a/package.json b/package.json
index 7abd3acb..ab24c425 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
   "author": "Lamassu (https://lamassu.is)",
   "dependencies": {
     "bignumber.js": "^3.0.0",
+    "bip39": "^2.3.0",
     "body-parser": "^1.15.1",
     "cookie-parser": "^1.4.3",
     "express": "^4.13.4",
@@ -57,7 +58,8 @@
     "lamassu-apply-defaults": "./bin/lamassu-apply-defaults",
     "hkdf": "./bin/hkdf",
     "lamassu-backup-pg": "./bin/lamassu-backup-pg",
-    "lamassu-install-bitcoind": "./bin/lamassu-install-bitcoind"
+    "lamassu-install-bitcoind": "./bin/lamassu-install-bitcoind",
+    "lamassu-mnemonic": "./bin/lamassu-mnemonic"
   },
   "scripts": {
     "test": "ava"
diff --git a/yarn.lock b/yarn.lock
index 0cdc410b..c047d768 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -963,6 +963,15 @@ bindings@1.2.1, bindings@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.2.1.tgz#14ad6113812d2d37d72e67b4cacb4bb726505f11"
 
+bip39@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/bip39/-/bip39-2.3.0.tgz#e4ee6c6d1bd90ca00ffd57ad446bdf8c017ff484"
+  dependencies:
+    create-hash "^1.1.0"
+    pbkdf2 "^3.0.9"
+    randombytes "^2.0.1"
+    unorm "^1.3.3"
+
 bip66@^1.1.0:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/bip66/-/bip66-1.1.4.tgz#8a59f8ae16eccb94681c3c2a7b224774605aadfb"
@@ -1479,7 +1488,7 @@ create-hash@^1.1.0, create-hash@^1.1.1, create-hash@^1.1.2:
     ripemd160 "^1.0.0"
     sha.js "^2.3.6"
 
-create-hmac@^1.1.3, create-hmac@^1.1.4:
+create-hmac@^1.1.2, create-hmac@^1.1.3, create-hmac@^1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.4.tgz#d3fb4ba253eb8b3f56e39ea2fbcb8af747bd3170"
   dependencies:
@@ -3413,6 +3422,12 @@ path-type@^1.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+pbkdf2@^3.0.9:
+  version "3.0.9"
+  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.9.tgz#f2c4b25a600058b3c3773c086c37dbbee1ffe693"
+  dependencies:
+    create-hmac "^1.1.2"
+
 pg-connection-string@0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/pg-connection-string/-/pg-connection-string-0.1.3.tgz#da1847b20940e42ee1492beaf65d49d91b245df7"
@@ -4597,6 +4612,10 @@ unique-temp-dir@^1.0.0:
     os-tmpdir "^1.0.1"
     uid2 "0.0.3"
 
+unorm@^1.3.3:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/unorm/-/unorm-1.4.1.tgz#364200d5f13646ca8bcd44490271335614792300"
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"