Copy utilized elliptic & bn.js external packages into bitcore-common

.circleci/config.yml

@@ -121,6 +121,7 @@ jobs:
             - node_modules
             - packages/bitcore-build/node_modules
             - packages/bitcore-client/node_modules
+            - packages/bitcore-common/node_modules
             - packages/bitcore-lib/node_modules
             - packages/bitcore-lib-cash/node_modules
             - packages/bitcore-lib-doge/node_modules
@@ -220,6 +221,11 @@ jobs:
     steps:
       - run_test:
           package: bitcore-tss
+  bitcore-common:
+    executor: main
+    steps:
+      - run_test:
+          package: bitcore-common
   crypto-rpc:
     executor: main
     steps:
@@ -272,6 +278,9 @@ workflows:
       - bitcore-tss:
           requires:
             - build
+      - bitcore-common:
+          requires:
+            - build
       - bitcore-cli:
           requires:
             - build

packages/bitcore-common/NOTICE

@@ -0,0 +1,6 @@
+This package contains code derived from:
+- elliptic (MIT) - https://github.com/indutny/elliptic
+  Copyright (c) 2014-2018, Fedor Indutny.
+- bn.js (MIT) - https://github.com/indutny/bn.js
+  Copyright (c) 2014-2019, Fedor Indutny.
+All derived code retains its original MIT license headers.

packages/bitcore-common/gulpfile.js

@@ -0,0 +1,5 @@
+const startGulp = require('@bitpay-labs/bitcore-build');
+
+Object.assign(exports, startGulp('common', {
+  skipBrowser: true
+}));

packages/bitcore-common/index.js

@@ -0,0 +1,19 @@
+'use strict';
+
+/**
+ * bitcore-common — crypto primitives for bitcore packages.
+ *
+ * API Contract:
+ * - All functions accept private keys as Buffer (32 bytes), NOT strings.
+ * - Public keys are returned as Point objects or Buffer (32 bytes for x-only).
+ */
+const BN = require('./lib/bn');
+const Curve = require('./lib/curve/secp256k1');
+const { Point } = require('./lib/curve/point');
+const Utils = require('./lib/utils');
+
+module.exports.BN = BN;
+module.exports.Curve = Curve;
+module.exports.Point = Point;
+module.exports.Utils = Utils;
+