Switch apache milagro with herumi/bls-wasm

packages/bls/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@chainsafe/bls",
-  "version": "0.1.7",
+  "version": "0.2.0",
   "description": "Implementation of bls signature verification for ethereum 2.0",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
@@ -23,11 +23,11 @@
     "build": "yarn build-lib && yarn build-types",
     "build:release": "yarn clean && yarn build && yarn build-web",
     "build-lib": "babel src -x .ts -d lib",
-    "build-types": "tsc --declaration --incremental --outDir lib --emitDeclarationOnly",
+    "build-types": "tsc --declaration --project tsconfig.build.json --incremental --outDir lib --emitDeclarationOnly",
     "build-web": "webpack --mode production --entry ./lib/web.js --output ./dist/bls.min.js",
     "check-types": "tsc --noEmit",
-    "lint": "eslint --ext .ts src/",
-    "lint:fix": "eslint --ext .ts src/ --fix",
+    "lint": "eslint --color --ext .ts src/",
+    "lint:fix": "yarn run lint --fix",
     "pretest": "yarn check-types",
     "prepublishOnly": "yarn build",
     "test:unit": "nyc --cache-dir .nyc_output/.cache -r lcov -e .ts mocha --colors -r ts-node/register 'test/unit/**/*.test.ts' && nyc report",
@@ -38,11 +38,10 @@
     "benchmark": "node -r ./.babel-register test/benchmarks"
   },
   "dependencies": {
+    "@chainsafe/eth2-bls-wasm": "^0.1.0",
     "@chainsafe/eth2.0-types": "^0.1.0",
-    "@chainsafe/milagro-crypto-js": "0.1.3",
     "assert": "^1.4.1",
-    "js-sha256": "^0.9.0",
-    "secure-random": "^1.1.1"
+    "bls-wasm": "^0.2.7"
   },
   "devDependencies": {
     "@babel/cli": "^7.2.3",
@@ -67,6 +66,7 @@
     "codecov": "^3.1.0",
     "eslint": "^5.14.1",
     "js-yaml": "^3.13.1",
+    "js-sha256": "^0.9.0",
     "mocha": "^6.2.0",
     "nyc": "^13.3.0",
     "sinon": "^7.2.7",

packages/bls/src/context.ts

@@ -0,0 +1,21 @@
+import blsWasmWrapper from "@chainsafe/eth2-bls-wasm";
+
+let blsWrapper: typeof blsWasmWrapper | null = null;
+
+export async function init(): Promise<typeof blsWasmWrapper> {
+  if(blsWrapper) return blsWrapper;
+  await blsWasmWrapper.init();
+  blsWrapper = blsWasmWrapper;
+  return blsWrapper;
+}
+
+export function destroy(): void {
+  blsWrapper = null;
+}
+
+export function getContext(): typeof blsWasmWrapper{
+  if(blsWrapper) {
+    return blsWrapper;
+  }
+  throw new Error("BLS not initialized");
+}