v6 initial commit, maybe more to follow

chain-util.js

@@ -0,0 +1,24 @@
+const EC = require('elliptic').ec;
+const SHA256 = require('crypto-js/sha256');
+const uuidV1 = require('uuid/v1');
+const ec = new EC('secp256k1');
+
+class ChainUtil {
+  static genKeyPair() {
+    return ec.genKeyPair();
+  }
+
+  static id() {
+    return uuidV1();
+  }
+
+  static hash(data) {
+    return SHA256(JSON.stringify(data)).toString();
+  }
+
+  static verifySignature(publicKey, signature, dataHash) {
+    return ec.keyFromPublic(publicKey, 'hex').verify(dataHash, signature);
+  }
+}
+
+module.exports = ChainUtil;