From 866b506dd0f127038c15831e508e319ab93302ce Mon Sep 17 00:00:00 2001 From: Ramon Tayag Date: Mon, 29 Oct 2018 17:54:12 +0800 Subject: [PATCH] Use bitcoinjs-lib to generate addresses --- .travis.yml | 1 + app/lib/btc/address_generator.rb | 16 +- lib/address_gen.js | 13 ++ package.json | 5 + spec/lib/btc/address_generator_spec.rb | 2 +- yarn.lock | 259 +++++++++++++++++++++++++ 6 files changed, 290 insertions(+), 6 deletions(-) create mode 100644 lib/address_gen.js create mode 100644 package.json create mode 100644 yarn.lock diff --git a/.travis.yml b/.travis.yml index 00dc427..aaa4646 100644 --- a/.travis.yml +++ b/.travis.yml @@ -8,3 +8,4 @@ rvm: before_script: - cp config/database.yml{.sample,} - bundle exec rake db:create db:test:prepare +- yarn install diff --git a/app/lib/btc/address_generator.rb b/app/lib/btc/address_generator.rb index 258ea74..f07f929 100644 --- a/app/lib/btc/address_generator.rb +++ b/app/lib/btc/address_generator.rb @@ -24,11 +24,17 @@ def address(idx) private def multisig_address(idx) - keychain_group = BTC::KeychainGroup.new(extended_keys: xpub) - keychain_group.standard_address( - index: idx, - signatures_required: signatures_required, - ) + keychains = xpub.map { |x| BTC::Keychain.new(extended_key: x) } + keys = keychains.map { |keychain| keychain.derived_key(idx) } + public_keys = keys.map { |key| BTC.to_hex(key.public_key) }.sort + command = [ + "node", + Rails.root.join("lib", "address_gen.js"), + public_keys.join(","), + signatures_required, + ].join(" ") + stdout_str, stderr_str, status = Open3.capture3(command) + stdout_str.chomp end def single_address(idx) diff --git a/lib/address_gen.js b/lib/address_gen.js new file mode 100644 index 0000000..70c65a4 --- /dev/null +++ b/lib/address_gen.js @@ -0,0 +1,13 @@ +let bitcoin = require('bitcoinjs-lib') + +const pubkeys = process.argv[2].split(",").sort().map( + (hex) => Buffer.from(hex, 'hex') +) + +const signaturesRequired = parseInt(process.argv[3]) + +const { address } = bitcoin.payments.p2sh({ + redeem: bitcoin.payments.p2ms({ m: signaturesRequired, pubkeys }) +}) + +console.log(address) diff --git a/package.json b/package.json new file mode 100644 index 0000000..8de6584 --- /dev/null +++ b/package.json @@ -0,0 +1,5 @@ +{ + "dependencies": { + "bitcoinjs-lib": "^4.0.2" + } +} diff --git a/spec/lib/btc/address_generator_spec.rb b/spec/lib/btc/address_generator_spec.rb index a78fee8..8ac5a23 100644 --- a/spec/lib/btc/address_generator_spec.rb +++ b/spec/lib/btc/address_generator_spec.rb @@ -93,7 +93,7 @@ module Btc end it "generates an address at the given index for the required number of signatures" do - expect(generator.address(0)).to eq "32Zt24PnJSjhgVvBKoZiyqPz26AmgUo1sV" + expect(generator.address(0)).to eq "3GbE5Hn5NNfAbkk33AquoZqtoehkDDBEZn" expect(generator.address(18)).to eq "3CwgJ7iYBWufLpwgsGKikjEH5YL38CAfz3" end end diff --git a/yarn.lock b/yarn.lock new file mode 100644 index 0000000..8508e27 --- /dev/null +++ b/yarn.lock @@ -0,0 +1,259 @@ +# THIS IS AN AUTOGENERATED FILE. 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