diff --git a/package-lock.json b/package-lock.json
index 301e0b40..f59b0f25 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,21 +9,41 @@
       "resolved": "http://registry.npm.taobao.org/@sindresorhus/is/download/@sindresorhus/is-0.7.0.tgz",
       "integrity": "sha1-mgb08TfuhNffBGDB/bETX/psUP0="
     },
+    "@types/bn.js": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.0.tgz",
+      "integrity": "sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/node": {
+      "version": "17.0.32",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-17.0.32.tgz",
+      "integrity": "sha512-eAIcfAvhf/BkHcf4pkLJ7ECpBAhh9kcxRBpip9cTiO+hf+aJrsxYxBeS6OXvOd9WqNAJmavXVpZvY1rBjNsXmw=="
+    },
+    "@types/pbkdf2": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@types/pbkdf2/-/pbkdf2-3.1.0.tgz",
+      "integrity": "sha512-Cf63Rv7jCQ0LaL8tNXmEyqTHuIJxRdlS5vMh1mj5voN4+QFhVZnlZruezqpWYDiJ8UTzhP0VmeLXCmBk66YrMQ==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/secp256k1": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/@types/secp256k1/-/secp256k1-4.0.3.tgz",
+      "integrity": "sha512-Da66lEIFeIz9ltsdMZcpQvmrmmoqrfju8pm1BH8WbYjZSwUgCwXLb9C+9XYogwBITnbsSaMdVPb2ekf7TV+03w==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "abbrev": {
       "version": "1.0.9",
       "resolved": "http://registry.npm.taobao.org/abbrev/download/abbrev-1.0.9.tgz",
       "integrity": "sha1-kbR5JYinc4wl813W9jdSovh3YTU=",
       "dev": true
     },
-    "accepts": {
-      "version": "1.3.5",
-      "resolved": "http://registry.npm.taobao.org/accepts/download/accepts-1.3.5.tgz",
-      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
-      "requires": {
-        "mime-types": "2.1.18",
-        "negotiator": "0.6.1"
-      }
-    },
     "acorn": {
       "version": "5.5.3",
       "resolved": "http://registry.npm.taobao.org/acorn/download/acorn-5.5.3.tgz",
@@ -137,11 +157,6 @@
       "resolved": "http://registry.npm.taobao.org/array-differ/download/array-differ-1.0.0.tgz",
       "integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE="
     },
-    "array-flatten": {
-      "version": "1.1.1",
-      "resolved": "http://registry.npm.taobao.org/array-flatten/download/array-flatten-1.1.1.tgz",
-      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
-    },
     "array-union": {
       "version": "1.0.2",
       "resolved": "http://registry.npm.taobao.org/array-union/download/array-union-1.0.2.tgz",
@@ -165,11 +180,6 @@
       "resolved": "http://registry.npm.taobao.org/arrify/download/arrify-1.0.1.tgz",
       "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0="
     },
-    "asn1": {
-      "version": "0.2.3",
-      "resolved": "http://registry.npm.taobao.org/asn1/download/asn1-0.2.3.tgz",
-      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y="
-    },
     "asn1.js": {
       "version": "4.10.1",
       "resolved": "http://registry.npm.taobao.org/asn1.js/download/asn1.js-4.10.1.tgz",
@@ -188,11 +198,6 @@
         "util": "0.10.3"
       }
     },
-    "assert-plus": {
-      "version": "1.0.0",
-      "resolved": "http://registry.npm.taobao.org/assert-plus/download/assert-plus-1.0.0.tgz",
-      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
-    },
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "http://registry.npm.taobao.org/assign-symbols/download/assign-symbols-1.0.0.tgz",
@@ -216,31 +221,11 @@
       "resolved": "http://registry.npm.taobao.org/async-each/download/async-each-1.0.1.tgz",
       "integrity": "sha1-GdOGodntxufByF04iu28xW0zYC0="
     },
-    "async-limiter": {
-      "version": "1.0.0",
-      "resolved": "http://registry.npm.taobao.org/async-limiter/download/async-limiter-1.0.0.tgz",
-      "integrity": "sha1-ePrtjD0HSrgfIrTphdeehzj3IPg="
-    },
-    "asynckit": {
-      "version": "0.4.0",
-      "resolved": "http://registry.npm.taobao.org/asynckit/download/asynckit-0.4.0.tgz",
-      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
-    },
     "atob": {
       "version": "2.1.0",
       "resolved": "http://registry.npm.taobao.org/atob/download/atob-2.1.0.tgz",
       "integrity": "sha1-qysVDlHXsSK578jXNAwGtsQQdrw="
     },
-    "aws-sign2": {
-      "version": "0.7.0",
-      "resolved": "http://registry.npm.taobao.org/aws-sign2/download/aws-sign2-0.7.0.tgz",
-      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg="
-    },
-    "aws4": {
-      "version": "1.7.0",
-      "resolved": "http://registry.npm.taobao.org/aws4/download/aws4-1.7.0.tgz",
-      "integrity": "sha1-1NDpudv8p3vwjusKikcVUP454ok="
-    },
     "babel-code-frame": {
       "version": "6.26.0",
       "resolved": "http://registry.npm.taobao.org/babel-code-frame/download/babel-code-frame-6.26.0.tgz",
@@ -1081,20 +1066,19 @@
         }
       }
     },
+    "base-x": {
+      "version": "3.0.9",
+      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.9.tgz",
+      "integrity": "sha512-H7JU6iBHTal1gp56aKoaa//YUxEaAOUiydvrV/pILqIHXTtqxSkATOnDA2u+jZ/61sD+L/412+7kzXRtWukhpQ==",
+      "requires": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "base64-js": {
       "version": "1.3.0",
       "resolved": "http://registry.npm.taobao.org/base64-js/download/base64-js-1.3.0.tgz",
       "integrity": "sha1-yrHmEY8FEJXli1KBrqjBzSK/wOM="
     },
-    "bcrypt-pbkdf": {
-      "version": "1.0.1",
-      "resolved": "http://registry.npm.taobao.org/bcrypt-pbkdf/download/bcrypt-pbkdf-1.0.1.tgz",
-      "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
-      "optional": true,
-      "requires": {
-        "tweetnacl": "0.14.5"
-      }
-    },
     "big.js": {
       "version": "3.2.0",
       "resolved": "http://registry.npm.taobao.org/big.js/download/big.js-3.2.0.tgz",
@@ -1102,6 +1086,7 @@
     },
     "bignumber.js": {
       "version": "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
+      "from": "bignumber.js@git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
       "dev": true
     },
     "binary-extensions": {
@@ -1114,6 +1099,11 @@
       "resolved": "http://registry.npm.taobao.org/binaryextensions/download/binaryextensions-2.1.1.tgz",
       "integrity": "sha1-MgmlHKSkrVQaO409am1bg6JIWTU="
     },
+    "blakejs": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/blakejs/-/blakejs-1.2.1.tgz",
+      "integrity": "sha512-QXUSXI3QVc/gJME0dBpXrag1kbzOqCjCX8/b54ntNyW6sjtoqxqRk3LTmXzaJoh71zMsDCjM+47jS7XiwN/+fQ=="
+    },
     "bluebird": {
       "version": "3.5.1",
       "resolved": "http://registry.npm.taobao.org/bluebird/download/bluebird-3.5.1.tgz",
@@ -1124,38 +1114,6 @@
       "resolved": "http://registry.npm.taobao.org/bn.js/download/bn.js-4.11.8.tgz",
       "integrity": "sha1-LN4J617jQfSEdGuwMJsyU7GxRC8="
     },
-    "body-parser": {
-      "version": "1.18.2",
-      "resolved": "http://registry.npm.taobao.org/body-parser/download/body-parser-1.18.2.tgz",
-      "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
-      "requires": {
-        "bytes": "3.0.0",
-        "content-type": "1.0.4",
-        "debug": "2.6.9",
-        "depd": "1.1.2",
-        "http-errors": "1.6.3",
-        "iconv-lite": "0.4.19",
-        "on-finished": "2.3.0",
-        "qs": "6.5.1",
-        "raw-body": "2.3.2",
-        "type-is": "1.6.16"
-      },
-      "dependencies": {
-        "iconv-lite": {
-          "version": "0.4.19",
-          "resolved": "http://registry.npm.taobao.org/iconv-lite/download/iconv-lite-0.4.19.tgz",
-          "integrity": "sha1-90aPYBNfXl2tM5nAqBvpoWA6CCs="
-        }
-      }
-    },
-    "boom": {
-      "version": "4.3.1",
-      "resolved": "http://registry.npm.taobao.org/boom/download/boom-4.3.1.tgz",
-      "integrity": "sha1-T4owBctKfjiJ90kDD9JbluAdLjE=",
-      "requires": {
-        "hoek": "4.2.1"
-      }
-    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "http://registry.npm.taobao.org/brace-expansion/download/brace-expansion-1.1.11.tgz",
@@ -1249,6 +1207,7 @@
       "version": "0.0.1",
       "resolved": "http://registry.npm.taobao.org/browserify-sha3/download/browserify-sha3-0.0.1.tgz",
       "integrity": "sha1-P/NKMAbvFcD7NWflQbkaI0ASPRE=",
+      "dev": true,
       "requires": {
         "js-sha3": "0.3.1"
       },
@@ -1256,7 +1215,8 @@
         "js-sha3": {
           "version": "0.3.1",
           "resolved": "http://registry.npm.taobao.org/js-sha3/download/js-sha3-0.3.1.tgz",
-          "integrity": "sha1-hhIoAhQvCChQKg0d7h2V4lO7AkM="
+          "integrity": "sha1-hhIoAhQvCChQKg0d7h2V4lO7AkM=",
+          "dev": true
         }
       }
     },
@@ -1282,6 +1242,31 @@
         "pako": "1.0.6"
       }
     },
+    "bs58": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
+      "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
+      "requires": {
+        "base-x": "^3.0.2"
+      }
+    },
+    "bs58check": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz",
+      "integrity": "sha512-0TS1jicxdU09dwJMNZtVAfzPi6Q6QeN0pM1Fkzrjn+XYHvzMKPU3pHVpva+769iNVSfIYWf7LJ6WR+BuuMf8cA==",
+      "requires": {
+        "bs58": "^4.0.0",
+        "create-hash": "^1.1.0",
+        "safe-buffer": "^5.1.2"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        }
+      }
+    },
     "buffer": {
       "version": "4.9.1",
       "resolved": "http://registry.npm.taobao.org/buffer/download/buffer-4.9.1.tgz",
@@ -1292,11 +1277,6 @@
         "isarray": "1.0.0"
       }
     },
-    "buffer-to-arraybuffer": {
-      "version": "0.0.5",
-      "resolved": "http://registry.npm.taobao.org/buffer-to-arraybuffer/download/buffer-to-arraybuffer-0.0.5.tgz",
-      "integrity": "sha1-YGSkD6dutDxyOrqe+PbhIW0QURo="
-    },
     "buffer-xor": {
       "version": "1.0.3",
       "resolved": "http://registry.npm.taobao.org/buffer-xor/download/buffer-xor-1.0.3.tgz",
@@ -1312,11 +1292,6 @@
       "resolved": "http://registry.npm.taobao.org/builtin-status-codes/download/builtin-status-codes-3.0.0.tgz",
       "integrity": "sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug="
     },
-    "bytes": {
-      "version": "3.0.0",
-      "resolved": "http://registry.npm.taobao.org/bytes/download/bytes-3.0.0.tgz",
-      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
-    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/cache-base/download/cache-base-1.0.1.tgz",
@@ -1359,11 +1334,6 @@
       "resolved": "http://registry.npm.taobao.org/camelcase/download/camelcase-1.2.1.tgz",
       "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk="
     },
-    "caseless": {
-      "version": "0.12.0",
-      "resolved": "http://registry.npm.taobao.org/caseless/download/caseless-0.12.0.tgz",
-      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
-    },
     "center-align": {
       "version": "0.1.3",
       "resolved": "http://registry.npm.taobao.org/center-align/download/center-align-0.1.3.tgz",
@@ -1552,7 +1522,8 @@
     "co": {
       "version": "4.6.0",
       "resolved": "http://registry.npm.taobao.org/co/download/co-4.6.0.tgz",
-      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ="
+      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
+      "dev": true
     },
     "code-point-at": {
       "version": "1.1.0",
@@ -1586,14 +1557,6 @@
       "resolved": "http://registry.npm.taobao.org/colors/download/colors-1.2.1.tgz",
       "integrity": "sha1-9KPTApdqrwQjVroa3jsaLGLZ15Q="
     },
-    "combined-stream": {
-      "version": "1.0.6",
-      "resolved": "http://registry.npm.taobao.org/combined-stream/download/combined-stream-1.0.6.tgz",
-      "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
-      "requires": {
-        "delayed-stream": "1.0.0"
-      }
-    },
     "commander": {
       "version": "2.3.0",
       "resolved": "http://registry.npm.taobao.org/commander/download/commander-2.3.0.tgz",
@@ -1628,31 +1591,11 @@
       "resolved": "http://registry.npm.taobao.org/constants-browserify/download/constants-browserify-1.0.0.tgz",
       "integrity": "sha1-wguW2MYXdIqvHBYCF2DNJ/y4y3U="
     },
-    "content-disposition": {
-      "version": "0.5.2",
-      "resolved": "http://registry.npm.taobao.org/content-disposition/download/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
-    },
-    "content-type": {
-      "version": "1.0.4",
-      "resolved": "http://registry.npm.taobao.org/content-type/download/content-type-1.0.4.tgz",
-      "integrity": "sha1-4TjMdeBAxyexlm/l5fjJruJW/js="
-    },
     "convert-source-map": {
       "version": "1.5.1",
       "resolved": "http://registry.npm.taobao.org/convert-source-map/download/convert-source-map-1.5.1.tgz",
       "integrity": "sha1-uCeAl7m8IpNl3lxiz1/K7YtVmeU="
     },
-    "cookie": {
-      "version": "0.3.1",
-      "resolved": "http://registry.npm.taobao.org/cookie/download/cookie-0.3.1.tgz",
-      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
-    },
-    "cookie-signature": {
-      "version": "1.0.6",
-      "resolved": "http://registry.npm.taobao.org/cookie-signature/download/cookie-signature-1.0.6.tgz",
-      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
-    },
     "copy-descriptor": {
       "version": "0.1.1",
       "resolved": "http://registry.npm.taobao.org/copy-descriptor/download/copy-descriptor-0.1.1.tgz",
@@ -1668,15 +1611,6 @@
       "resolved": "http://registry.npm.taobao.org/core-util-is/download/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
-    "cors": {
-      "version": "2.8.4",
-      "resolved": "http://registry.npm.taobao.org/cors/download/cors-2.8.4.tgz",
-      "integrity": "sha1-K9OB8usgECAQXNUOpZ2mMJBpRoY=",
-      "requires": {
-        "object-assign": "4.1.1",
-        "vary": "1.1.2"
-      }
-    },
     "create-ecdh": {
       "version": "4.0.1",
       "resolved": "http://registry.npm.taobao.org/create-ecdh/download/create-ecdh-4.0.1.tgz",
@@ -1721,24 +1655,6 @@
         "which": "1.3.0"
       }
     },
-    "cryptiles": {
-      "version": "3.1.2",
-      "resolved": "http://registry.npm.taobao.org/cryptiles/download/cryptiles-3.1.2.tgz",
-      "integrity": "sha1-qJ+7Ig9c4l7FboxKqKT9e1sNKf4=",
-      "requires": {
-        "boom": "5.2.0"
-      },
-      "dependencies": {
-        "boom": {
-          "version": "5.2.0",
-          "resolved": "http://registry.npm.taobao.org/boom/download/boom-5.2.0.tgz",
-          "integrity": "sha1-XdnabuOl8wIHdDYpDLcX0/SlTgI=",
-          "requires": {
-            "hoek": "4.2.1"
-          }
-        }
-      }
-    },
     "crypto-browserify": {
       "version": "3.12.0",
       "resolved": "http://registry.npm.taobao.org/crypto-browserify/download/crypto-browserify-3.12.0.tgz",
@@ -1776,14 +1692,6 @@
       "resolved": "http://registry.npm.taobao.org/dargs/download/dargs-5.1.0.tgz",
       "integrity": "sha1-7H6lDHhWTNNsnV7Bj2Yyn63ieCk="
     },
-    "dashdash": {
-      "version": "1.14.1",
-      "resolved": "http://registry.npm.taobao.org/dashdash/download/dashdash-1.14.1.tgz",
-      "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
-      "requires": {
-        "assert-plus": "1.0.0"
-      }
-    },
     "date-fns": {
       "version": "1.29.0",
       "resolved": "http://registry.npm.taobao.org/date-fns/download/date-fns-1.29.0.tgz",
@@ -1884,16 +1792,6 @@
         }
       }
     },
-    "delayed-stream": {
-      "version": "1.0.0",
-      "resolved": "http://registry.npm.taobao.org/delayed-stream/download/delayed-stream-1.0.0.tgz",
-      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
-    },
-    "depd": {
-      "version": "1.1.2",
-      "resolved": "http://registry.npm.taobao.org/depd/download/depd-1.1.2.tgz",
-      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
-    },
     "des.js": {
       "version": "1.0.0",
       "resolved": "http://registry.npm.taobao.org/des.js/download/des.js-1.0.0.tgz",
@@ -1903,11 +1801,6 @@
         "minimalistic-assert": "1.0.1"
       }
     },
-    "destroy": {
-      "version": "1.0.4",
-      "resolved": "http://registry.npm.taobao.org/destroy/download/destroy-1.0.4.tgz",
-      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
-    },
     "detect-conflict": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/detect-conflict/download/detect-conflict-1.0.1.tgz",
@@ -1936,11 +1829,6 @@
         "randombytes": "2.0.6"
       }
     },
-    "dom-walk": {
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-      "resolved": "http://registry.npm.taobao.org/dom-walk/download/dom-walk-0.1.1.tgz",
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@@ -1951,25 +1839,11 @@
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       "integrity": "sha1-NmLLWSNHwxaOuOSYoP9zJx1n9Qs="
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@@ -1999,11 +1873,6 @@
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@@ -2110,11 +1979,6 @@
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-      "resolved": "http://registry.npm.taobao.org/escape-html/download/escape-html-1.0.3.tgz",
-      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
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@@ -2191,11 +2055,6 @@
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-      "resolved": "http://registry.npm.taobao.org/etag/download/etag-1.8.1.tgz",
-      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
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@@ -2205,18 +2064,77 @@
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-      "resolved": "http://registry.npm.taobao.org/eth-lib/download/eth-lib-0.1.27.tgz",
-      "integrity": "sha1-8LD9FE+GXS1r+CV6QABPLnXKHdY=",
+    "ethereum-bloom-filters": {
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+      "resolved": "https://registry.npmjs.org/ethereum-bloom-filters/-/ethereum-bloom-filters-1.0.10.tgz",
+      "integrity": "sha512-rxJ5OFN3RwjQxDcFP2Z5+Q9ho4eIdEmSc2ht0fCu8Se9nbXjZ7/031uXoUYJ87KHCOdVeiUuwSnoS7hmYAGVHA==",
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-        "servify": "0.1.12",
-        "ws": "3.3.3",
-        "xhr-request-promise": "0.1.2"
+        "js-sha3": "^0.8.0"
+      },
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+          "version": "0.8.0",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.8.0.tgz",
+          "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q=="
+        }
+      }
+    },
+    "ethereum-cryptography": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz",
+      "integrity": "sha512-w8/4x1SGGzc+tO97TASLja6SLd3fRIK2tLVcV2Gx4IB21hE19atll5Cq9o3d0ZmAYC/8aw0ipieTSiekAea4SQ==",
+      "requires": {
+        "@types/pbkdf2": "^3.0.0",
+        "@types/secp256k1": "^4.0.1",
+        "blakejs": "^1.1.0",
+        "browserify-aes": "^1.2.0",
+        "bs58check": "^2.1.2",
+        "create-hash": "^1.2.0",
+        "create-hmac": "^1.1.7",
+        "hash.js": "^1.1.7",
+        "keccak": "^3.0.0",
+        "pbkdf2": "^3.0.17",
+        "randombytes": "^2.1.0",
+        "safe-buffer": "^5.1.2",
+        "scrypt-js": "^3.0.0",
+        "secp256k1": "^4.0.1",
+        "setimmediate": "^1.0.5"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
+          "integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "minimalistic-assert": "^1.0.1"
+          }
+        },
+        "pbkdf2": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.1.2.tgz",
+          "integrity": "sha512-iuh7L6jA7JEGu2WxDwtQP1ddOpaJNC4KlDEFfdQajSGgGPNi4OyDc2R7QnbY2bR9QjBVGwgvTdNJZoE7RaxUMA==",
+          "requires": {
+            "create-hash": "^1.1.2",
+            "create-hmac": "^1.1.4",
+            "ripemd160": "^2.0.1",
+            "safe-buffer": "^5.0.1",
+            "sha.js": "^2.4.8"
+          }
+        },
+        "randombytes": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
+          "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
+          "requires": {
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+          }
+        },
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        }
       }
     },
     "ethereumjs-testrpc": {
@@ -2236,9 +2154,28 @@
         "webpack": "3.11.0"
       }
     },
+    "ethereumjs-util": {
+      "version": "7.1.4",
+      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.1.4.tgz",
+      "integrity": "sha512-p6KmuPCX4mZIqsQzXfmSx9Y0l2hqf+VkAiwSisW3UKUFdk8ZkAt+AYaor83z2nSi6CU2zSsXMlD80hAbNEGM0A==",
+      "requires": {
+        "@types/bn.js": "^5.1.0",
+        "bn.js": "^5.1.2",
+        "create-hash": "^1.1.2",
+        "ethereum-cryptography": "^0.1.3",
+        "rlp": "^2.2.4"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.0.tgz",
+          "integrity": "sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw=="
+        }
+      }
+    },
     "ethjs-unit": {
       "version": "0.1.6",
-      "resolved": "http://registry.npm.taobao.org/ethjs-unit/download/ethjs-unit-0.1.6.tgz",
+      "resolved": "https://registry.npmjs.org/ethjs-unit/-/ethjs-unit-0.1.6.tgz",
       "integrity": "sha1-xmWSHkduh7ziqdWIpv4EBbLEFpk=",
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@@ -2247,7 +2184,7 @@
       "dependencies": {
         "bn.js": {
           "version": "4.11.6",
-          "resolved": "http://registry.npm.taobao.org/bn.js/download/bn.js-4.11.6.tgz",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
           "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
         }
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@@ -2372,55 +2309,6 @@
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       }
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-    "express": {
-      "version": "4.16.3",
-      "resolved": "http://registry.npm.taobao.org/express/download/express-4.16.3.tgz",
-      "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
-      "requires": {
-        "accepts": "1.3.5",
-        "array-flatten": "1.1.1",
-        "body-parser": "1.18.2",
-        "content-disposition": "0.5.2",
-        "content-type": "1.0.4",
-        "cookie": "0.3.1",
-        "cookie-signature": "1.0.6",
-        "debug": "2.6.9",
-        "depd": "1.1.2",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
-        "finalhandler": "1.1.1",
-        "fresh": "0.5.2",
-        "merge-descriptors": "1.0.1",
-        "methods": "1.1.2",
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-        "send": "0.16.2",
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-        "statuses": "1.4.0",
-        "type-is": "1.6.16",
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-          "version": "1.4.0",
-          "resolved": "http://registry.npm.taobao.org/statuses/download/statuses-1.4.0.tgz",
-          "integrity": "sha1-u3PURtonlhBu/MG2AaJT1sRr0Ic="
-        }
-      }
-    },
-    "extend": {
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-      "resolved": "http://registry.npm.taobao.org/extend/download/extend-3.0.1.tgz",
-      "integrity": "sha1-p1Xqe8Gt/MWjHOfnYtuq3F5jZEQ="
-    },
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       "resolved": "http://registry.npm.taobao.org/extend-shallow/download/extend-shallow-3.0.2.tgz",
@@ -2514,11 +2402,6 @@
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-    "extsprintf": {
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-      "resolved": "http://registry.npm.taobao.org/extsprintf/download/extsprintf-1.3.0.tgz",
-      "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
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@@ -2569,27 +2452,6 @@
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-      "resolved": "http://registry.npm.taobao.org/finalhandler/download/finalhandler-1.1.1.tgz",
-      "integrity": "sha1-7r9O2EAHnIP0JJA4ydcDAIMBsQU=",
-      "requires": {
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-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
-        "statuses": "1.4.0",
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-          "resolved": "http://registry.npm.taobao.org/statuses/download/statuses-1.4.0.tgz",
-          "integrity": "sha1-u3PURtonlhBu/MG2AaJT1sRr0Ic="
-        }
-      }
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       "resolved": "http://registry.npm.taobao.org/find-up/download/find-up-2.1.0.tgz",
@@ -2611,14 +2473,6 @@
       "resolved": "http://registry.npm.taobao.org/flow-parser/download/flow-parser-0.70.0.tgz",
       "integrity": "sha1-nDEBh+/kOAupolEoTpuDuVxJ6Fc="
     },
-    "for-each": {
-      "version": "0.3.2",
-      "resolved": "http://registry.npm.taobao.org/for-each/download/for-each-0.3.2.tgz",
-      "integrity": "sha1-LEBFC5NI6X8oEyJZO6lnBLmr1NQ=",
-      "requires": {
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-      }
-    },
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       "resolved": "http://registry.npm.taobao.org/for-in/download/for-in-1.0.2.tgz",
@@ -2632,26 +2486,6 @@
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       }
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-    "forever-agent": {
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-      "resolved": "http://registry.npm.taobao.org/forever-agent/download/forever-agent-0.6.1.tgz",
-      "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE="
-    },
-    "form-data": {
-      "version": "2.3.2",
-      "resolved": "http://registry.npm.taobao.org/form-data/download/form-data-2.3.2.tgz",
-      "integrity": "sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=",
-      "requires": {
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-        "combined-stream": "1.0.6",
-        "mime-types": "2.1.18"
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-      "resolved": "http://registry.npm.taobao.org/forwarded/download/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
-    },
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       "resolved": "http://registry.npm.taobao.org/fragment-cache/download/fragment-cache-0.2.1.tgz",
@@ -2660,11 +2494,6 @@
         "map-cache": "0.2.2"
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-    "fresh": {
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-      "resolved": "http://registry.npm.taobao.org/fresh/download/fresh-0.5.2.tgz",
-      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
-    },
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       "resolved": "http://registry.npm.taobao.org/from2/download/from2-2.3.0.tgz",
@@ -2717,7 +2546,8 @@
         },
         "ansi-regex": {
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-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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@@ -2760,7 +2590,8 @@
         },
         "balanced-match": {
           "version": "0.4.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "bcrypt-pbkdf": {
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@@ -2773,6 +2604,7 @@
         "block-stream": {
           "version": "0.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "inherits": "2.0.3"
           }
@@ -2780,6 +2612,7 @@
         "boom": {
           "version": "2.10.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -2787,6 +2620,7 @@
         "brace-expansion": {
           "version": "1.1.7",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -2794,7 +2628,8 @@
         },
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           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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@@ -2808,30 +2643,36 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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           "version": "1.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "delayed-stream": "1.0.0"
           }
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "core-util-is": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "cryptiles": {
           "version": "2.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -2866,7 +2707,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -2893,7 +2735,8 @@
         },
         "extsprintf": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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@@ -2912,11 +2755,13 @@
         },
         "fs.realpath": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -2967,6 +2812,7 @@
         "glob": {
           "version": "7.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -2978,7 +2824,8 @@
         },
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+          "bundled": true,
+          "optional": true
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@@ -3002,6 +2849,7 @@
         "hawk": {
           "version": "3.1.3",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "cryptiles": "2.0.5",
@@ -3011,7 +2859,8 @@
         },
         "hoek": {
           "version": "2.16.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -3026,6 +2875,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "wrappy": "1.0.2"
@@ -3033,7 +2883,8 @@
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+          "bundled": true,
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@@ -3043,6 +2894,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -3054,7 +2906,8 @@
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+          "bundled": true,
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@@ -3117,11 +2970,13 @@
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         "mime-db": {
           "version": "1.27.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -3129,17 +2984,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3189,7 +3047,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
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           "version": "0.8.2",
@@ -3204,6 +3063,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -3229,7 +3089,8 @@
         },
         "path-is-absolute": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -3238,7 +3099,8 @@
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         "process-nextick-args": {
           "version": "1.0.7",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -3271,6 +3133,7 @@
         "readable-stream": {
           "version": "2.2.9",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "core-util-is": "1.0.2",
@@ -3313,13 +3176,15 @@
         "rimraf": {
           "version": "2.6.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
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         "safe-buffer": {
           "version": "5.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -3339,6 +3204,7 @@
         "sntp": {
           "version": "1.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -3369,6 +3235,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
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@@ -3378,6 +3245,7 @@
         "string_decoder": {
           "version": "1.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -3390,6 +3258,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -3402,6 +3271,7 @@
         "tar": {
           "version": "2.2.1",
           "bundled": true,
+          "optional": true,
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             "fstream": "1.0.11",
@@ -3451,7 +3321,8 @@
         },
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -3476,7 +3347,8 @@
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         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
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@@ -3504,14 +3376,6 @@
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       "integrity": "sha1-3BXKHGcjh8p2vTesCjlbogQqLCg="
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-      "resolved": "http://registry.npm.taobao.org/getpass/download/getpass-0.1.7.tgz",
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       "resolved": "http://registry.npm.taobao.org/gh-got/download/gh-got-6.0.0.tgz",
@@ -3666,22 +3530,6 @@
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-      "resolved": "http://registry.npm.taobao.org/global/download/global-4.3.2.tgz",
-      "integrity": "sha1-52mJJopsdMOJCLEwWxD8DjlOnQ8=",
-      "requires": {
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-        "process": "0.5.2"
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-          "resolved": "http://registry.npm.taobao.org/process/download/process-0.5.2.tgz",
-          "integrity": "sha1-FjjYqONML0QKkduVq5rrZ3/Bhc8="
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       "resolved": "http://registry.npm.taobao.org/global-modules/download/global-modules-1.0.0.tgz",
@@ -3806,33 +3654,6 @@
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-      "resolved": "http://registry.npm.taobao.org/har-schema/download/har-schema-2.0.0.tgz",
-      "integrity": "sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI="
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-      "resolved": "http://registry.npm.taobao.org/har-validator/download/har-validator-5.0.3.tgz",
-      "integrity": "sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=",
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-          "resolved": "http://registry.npm.taobao.org/ajv/download/ajv-5.5.2.tgz",
-          "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
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       "resolved": "http://registry.npm.taobao.org/has-ansi/download/has-ansi-2.0.0.tgz",
@@ -3911,17 +3732,6 @@
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-      "resolved": "http://registry.npm.taobao.org/hawk/download/hawk-6.0.2.tgz",
-      "integrity": "sha1-r02RTrBl+bXOTZ0RwcshJu7MMDg=",
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-        "cryptiles": "3.1.2",
-        "hoek": "4.2.1",
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       "resolved": "http://registry.npm.taobao.org/he/download/he-1.1.1.tgz",
@@ -3938,11 +3748,6 @@
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       }
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-      "resolved": "http://registry.npm.taobao.org/hoek/download/hoek-4.2.1.tgz",
-      "integrity": "sha1-ljRQKqEsRF3Vp8VzS1cruHOKrLs="
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       "resolved": "http://registry.npm.taobao.org/home-or-tmp/download/home-or-tmp-2.0.0.tgz",
@@ -3970,27 +3775,6 @@
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       "integrity": "sha1-ObDhat2bYFvwqe89nar0hDtMrNI="
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-    "http-errors": {
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-      "resolved": "http://registry.npm.taobao.org/http-errors/download/http-errors-1.6.3.tgz",
-      "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
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-        "statuses": "1.5.0"
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-    "http-signature": {
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-      "resolved": "http://registry.npm.taobao.org/http-signature/download/http-signature-1.2.0.tgz",
-      "integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
-      "requires": {
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-        "sshpk": "1.14.1"
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-    },
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       "resolved": "http://registry.npm.taobao.org/https-browserify/download/https-browserify-1.0.0.tgz",
@@ -4125,11 +3909,6 @@
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       "integrity": "sha1-EEqOSqym09jNFXqO+L+rLXo//bY="
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-    "ipaddr.js": {
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-      "resolved": "http://registry.npm.taobao.org/ipaddr.js/download/ipaddr.js-1.6.0.tgz",
-      "integrity": "sha1-4/o1e3c9phnybpXwSdBVxyeW+Gs="
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       "resolved": "http://registry.npm.taobao.org/is-accessor-descriptor/download/is-accessor-descriptor-0.1.6.tgz",
@@ -4228,11 +4007,6 @@
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-      "resolved": "http://registry.npm.taobao.org/is-function/download/is-function-1.0.1.tgz",
-      "integrity": "sha1-Es+5i2W1fdPRk6MSH19uL0N2ArU="
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       "resolved": "http://registry.npm.taobao.org/is-glob/download/is-glob-4.0.0.tgz",
@@ -4243,7 +4017,7 @@
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       "version": "1.0.0",
-      "resolved": "http://registry.npm.taobao.org/is-hex-prefixed/download/is-hex-prefixed-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz",
       "integrity": "sha1-fY035q135dEnFIkTxXPggtd39VQ="
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@@ -4335,11 +4109,6 @@
       "resolved": "http://registry.npm.taobao.org/is-stream/download/is-stream-1.1.0.tgz",
       "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ="
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-    "is-typedarray": {
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-      "resolved": "http://registry.npm.taobao.org/is-typedarray/download/is-typedarray-1.0.0.tgz",
-      "integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo="
-    },
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       "resolved": "http://registry.npm.taobao.org/is-utf8/download/is-utf8-0.2.1.tgz",
@@ -4365,11 +4134,6 @@
       "resolved": "http://registry.npm.taobao.org/isobject/download/isobject-3.0.1.tgz",
       "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
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-    "isstream": {
-      "version": "0.1.2",
-      "resolved": "http://registry.npm.taobao.org/isstream/download/isstream-0.1.2.tgz",
-      "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
-    },
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       "resolved": "http://registry.npm.taobao.org/istanbul/download/istanbul-0.4.5.tgz",
@@ -4515,12 +4279,6 @@
         "esprima": "4.0.0"
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-    "jsbn": {
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-      "resolved": "http://registry.npm.taobao.org/jsbn/download/jsbn-0.1.1.tgz",
-      "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM=",
-      "optional": true
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       "resolved": "http://registry.npm.taobao.org/jscodeshift/download/jscodeshift-0.5.0.tgz",
@@ -4637,21 +4395,11 @@
       "resolved": "http://registry.npm.taobao.org/json-parse-better-errors/download/json-parse-better-errors-1.0.2.tgz",
       "integrity": "sha1-u4Z8+zRQ5pEHwTHRxRS6s9yLyqk="
     },
-    "json-schema": {
-      "version": "0.2.3",
-      "resolved": "http://registry.npm.taobao.org/json-schema/download/json-schema-0.2.3.tgz",
-      "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM="
-    },
     "json-schema-traverse": {
       "version": "0.3.1",
       "resolved": "http://registry.npm.taobao.org/json-schema-traverse/download/json-schema-traverse-0.3.1.tgz",
       "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A="
     },
-    "json-stringify-safe": {
-      "version": "5.0.1",
-      "resolved": "http://registry.npm.taobao.org/json-stringify-safe/download/json-stringify-safe-5.0.1.tgz",
-      "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
-    },
     "json3": {
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       "resolved": "http://registry.npm.taobao.org/json3/download/json3-3.3.2.tgz",
@@ -4671,21 +4419,33 @@
         "graceful-fs": "4.1.11"
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-      "version": "1.4.1",
-      "resolved": "http://registry.npm.taobao.org/jsprim/download/jsprim-1.4.1.tgz",
-      "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
+    "keccak": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/keccak/-/keccak-3.0.2.tgz",
+      "integrity": "sha512-PyKKjkH53wDMLGrvmRGSNWgmSxZOUqbnXwKL9tmgbFYA1iAYqW21kfR7mZXV0MlESiefxQQE9X9fTa3X+2MPDQ==",
       "requires": {
-        "assert-plus": "1.0.0",
-        "extsprintf": "1.3.0",
-        "json-schema": "0.2.3",
-        "verror": "1.10.0"
+        "node-addon-api": "^2.0.0",
+        "node-gyp-build": "^4.2.0",
+        "readable-stream": "^3.6.0"
+      },
+      "dependencies": {
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        }
       }
     },
     "keccakjs": {
       "version": "0.2.1",
       "resolved": "http://registry.npm.taobao.org/keccakjs/download/keccakjs-0.2.1.tgz",
       "integrity": "sha1-HWM6+QfvMFu/ny+mFtVsRFYd+k0=",
+      "dev": true,
       "requires": {
         "browserify-sha3": "0.0.1",
         "sha3": "1.2.0"
@@ -5158,11 +4918,6 @@
         "inherits": "2.0.3"
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-    "media-typer": {
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-      "resolved": "http://registry.npm.taobao.org/media-typer/download/media-typer-0.3.0.tgz",
-      "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
-    },
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       "resolved": "http://registry.npm.taobao.org/mem/download/mem-1.1.0.tgz",
@@ -5242,16 +4997,6 @@
       "resolved": "http://registry.npm.taobao.org/memorystream/download/memorystream-0.3.1.tgz",
       "integrity": "sha1-htcJCzDORV1j+64S3aUaR93K+bI="
     },
-    "merge-descriptors": {
-      "version": "1.0.1",
-      "resolved": "http://registry.npm.taobao.org/merge-descriptors/download/merge-descriptors-1.0.1.tgz",
-      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
-    },
-    "methods": {
-      "version": "1.1.2",
-      "resolved": "http://registry.npm.taobao.org/methods/download/methods-1.1.2.tgz",
-      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4="
-    },
     "micromatch": {
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       "resolved": "http://registry.npm.taobao.org/micromatch/download/micromatch-3.1.10.tgz",
@@ -5288,24 +5033,6 @@
         "brorand": "1.1.0"
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-    "mime": {
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-      "resolved": "http://registry.npm.taobao.org/mime/download/mime-1.4.1.tgz",
-      "integrity": "sha1-Eh+evEnjdm8xGnbh+hyAA8SwOqY="
-    },
-    "mime-db": {
-      "version": "1.33.0",
-      "resolved": "http://registry.npm.taobao.org/mime-db/download/mime-db-1.33.0.tgz",
-      "integrity": "sha1-o0kgUKXLm2NFBUHjnZeI0icng9s="
-    },
-    "mime-types": {
-      "version": "2.1.18",
-      "resolved": "http://registry.npm.taobao.org/mime-types/download/mime-types-2.1.18.tgz",
-      "integrity": "sha1-bzI/YKg9ERRvgx/xH9ZuL+VQO7g=",
-      "requires": {
-        "mime-db": "1.33.0"
-      }
-    },
     "mimic-fn": {
       "version": "1.2.0",
       "resolved": "http://registry.npm.taobao.org/mimic-fn/download/mimic-fn-1.2.0.tgz",
@@ -5316,14 +5043,6 @@
       "resolved": "http://registry.npm.taobao.org/mimic-response/download/mimic-response-1.0.0.tgz",
       "integrity": "sha1-3z02Uqc/3ta5sLJBRub9BSNTRY4="
     },
-    "min-document": {
-      "version": "2.19.0",
-      "resolved": "http://registry.npm.taobao.org/min-document/download/min-document-2.19.0.tgz",
-      "integrity": "sha1-e9KC4/WELtKVu3SM3Z8f+iyCRoU=",
-      "requires": {
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-      }
-    },
     "minimalistic-assert": {
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       "resolved": "http://registry.npm.taobao.org/minimalistic-assert/download/minimalistic-assert-1.0.1.tgz",
@@ -5479,11 +5198,6 @@
       "resolved": "http://registry.npm.taobao.org/nan/download/nan-2.10.0.tgz",
       "integrity": "sha1-ltDNYQ69WNS03pzAxoKM2pnHVI8="
     },
-    "nano-json-stream-parser": {
-      "version": "0.1.2",
-      "resolved": "http://registry.npm.taobao.org/nano-json-stream-parser/download/nano-json-stream-parser-0.1.2.tgz",
-      "integrity": "sha1-DMj20OK2IrR5xA1JnEbWS3Vcb18="
-    },
     "nanomatch": {
       "version": "1.2.9",
       "resolved": "http://registry.npm.taobao.org/nanomatch/download/nanomatch-1.2.9.tgz",
@@ -5510,11 +5224,6 @@
         }
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-    "negotiator": {
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-      "resolved": "http://registry.npm.taobao.org/negotiator/download/negotiator-0.6.1.tgz",
-      "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
-    },
     "neo-async": {
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       "resolved": "http://registry.npm.taobao.org/neo-async/download/neo-async-2.5.1.tgz",
@@ -5530,11 +5239,21 @@
       "resolved": "http://registry.npm.taobao.org/nice-try/download/nice-try-1.0.4.tgz",
       "integrity": "sha1-2Tli9sUvLBVYwPvabVEoGfHv4cQ="
     },
+    "node-addon-api": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-2.0.2.tgz",
+      "integrity": "sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA=="
+    },
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       "integrity": "sha1-VfuN62mQcHB/tn+RpGDwRIKUx30="
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@@ -5656,7 +5375,7 @@
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-      "resolved": "http://registry.npm.taobao.org/number-to-bn/download/number-to-bn-1.7.0.tgz",
+      "resolved": "https://registry.npmjs.org/number-to-bn/-/number-to-bn-1.7.0.tgz",
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@@ -5665,16 +5384,11 @@
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-          "resolved": "http://registry.npm.taobao.org/bn.js/download/bn.js-4.11.6.tgz",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
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@@ -5725,14 +5439,6 @@
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@@ -5979,15 +5685,6 @@
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@@ -6149,15 +5831,6 @@
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@@ -6185,11 +5858,6 @@
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@@ -6246,55 +5914,6 @@
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@@ -6495,35 +6114,6 @@
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@@ -6628,6 +6218,21 @@
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+      "resolved": "https://registry.npmjs.org/rlp/-/rlp-2.2.7.tgz",
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+      "requires": {
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+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.0.tgz",
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+        }
+      }
+    },
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       "resolved": "http://registry.npm.taobao.org/run-async/download/run-async-2.3.0.tgz",
@@ -6680,60 +6285,51 @@
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-      "integrity": "sha1-3Eu8emyp2Rbe5dQ1FvAJK1j3uKs="
+    "scrypt-js": {
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+      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
+      "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA=="
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-      "integrity": "sha1-bsyh4PjBVtFBWXVZhI32RzCmu8E=",
+    "secp256k1": {
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+      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-4.0.3.tgz",
+      "integrity": "sha512-NLZVf+ROMxwtEj3Xa562qgv2BK5e2WNmXPiOdVIPLgs6lyTzMvBq0aWTYMI5XCP9jZMVKOcqZLw/Wc4vDkuxhA==",
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-        "range-parser": "1.2.0",
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-          "integrity": "sha1-u3PURtonlhBu/MG2AaJT1sRr0Ic="
+        "bn.js": {
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+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA=="
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+          "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+          "requires": {
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+            "hmac-drbg": "^1.0.1",
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+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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-        "cors": "2.8.4",
-        "express": "4.16.3",
-        "request": "2.85.0",
-        "xhr": "2.4.1"
-      }
+    "semver": {
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+      "resolved": "http://registry.npm.taobao.org/semver/download/semver-5.5.0.tgz",
+      "integrity": "sha1-3Eu8emyp2Rbe5dQ1FvAJK1j3uKs="
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@@ -6771,11 +6367,6 @@
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@@ -6789,6 +6380,7 @@
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       "integrity": "sha1-aYnxtwpJhwWHajc+LGKs6WqpOZo=",
+      "dev": true,
       "requires": {
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@@ -6827,21 +6419,6 @@
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@@ -6949,14 +6526,6 @@
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@@ -7706,21 +7275,6 @@
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@@ -7740,11 +7294,6 @@
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@@ -7821,11 +7370,6 @@
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@@ -7865,7 +7409,7 @@
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-      "resolved": "http://registry.npm.taobao.org/strip-hex-prefix/download/strip-hex-prefix-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz",
       "integrity": "sha1-DF8VX+8RUTczd96du1iNoFUA428=",
       "requires": {
         "is-hex-prefixed": "1.0.0"
@@ -7992,26 +7536,6 @@
         "repeat-string": "1.6.1"
       }
     },
-    "tough-cookie": {
-      "version": "2.3.4",
-      "resolved": "http://registry.npm.taobao.org/tough-cookie/download/tough-cookie-2.3.4.tgz",
-      "integrity": "sha1-7GDO44rGdQY//JelwYlwV47oNlU=",
-      "requires": {
-        "punycode": "1.4.1"
-      },
-      "dependencies": {
-        "punycode": {
-          "version": "1.4.1",
-          "resolved": "http://registry.npm.taobao.org/punycode/download/punycode-1.4.1.tgz",
-          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4="
-        }
-      }
-    },
-    "trim": {
-      "version": "0.0.1",
-      "resolved": "http://registry.npm.taobao.org/trim/download/trim-0.0.1.tgz",
-      "integrity": "sha1-WFhUf2spB1fulczMZm+1AITEYN0="
-    },
     "trim-right": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/trim-right/download/trim-right-1.0.1.tgz",
@@ -8275,20 +7799,6 @@
       "resolved": "http://registry.npm.taobao.org/tty-browserify/download/tty-browserify-0.0.0.tgz",
       "integrity": "sha1-oVe6QC2iTpv5V/mqadUk7tQpAaY="
     },
-    "tunnel-agent": {
-      "version": "0.6.0",
-      "resolved": "http://registry.npm.taobao.org/tunnel-agent/download/tunnel-agent-0.6.0.tgz",
-      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
-      "requires": {
-        "safe-buffer": "5.1.1"
-      }
-    },
-    "tweetnacl": {
-      "version": "0.14.5",
-      "resolved": "http://registry.npm.taobao.org/tweetnacl/download/tweetnacl-0.14.5.tgz",
-      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "optional": true
-    },
     "type-check": {
       "version": "0.3.2",
       "resolved": "http://registry.npm.taobao.org/type-check/download/type-check-0.3.2.tgz",
@@ -8298,15 +7808,6 @@
         "prelude-ls": "1.1.2"
       }
     },
-    "type-is": {
-      "version": "1.6.16",
-      "resolved": "http://registry.npm.taobao.org/type-is/download/type-is-1.6.16.tgz",
-      "integrity": "sha1-+JzjQVQcZysl7nrjxz3uOyvlAZQ=",
-      "requires": {
-        "media-typer": "0.3.0",
-        "mime-types": "2.1.18"
-      }
-    },
     "uglify-js": {
       "version": "2.8.29",
       "resolved": "http://registry.npm.taobao.org/uglify-js/download/uglify-js-2.8.29.tgz",
@@ -8346,11 +7847,6 @@
         "webpack-sources": "1.1.0"
       }
     },
-    "ultron": {
-      "version": "1.1.1",
-      "resolved": "http://registry.npm.taobao.org/ultron/download/ultron-1.1.1.tgz",
-      "integrity": "sha1-n+FTahCmZKZSZqHjzPhf02MCvJw="
-    },
     "underscore": {
       "version": "1.6.0",
       "resolved": "http://registry.npm.taobao.org/underscore/download/underscore-1.6.0.tgz",
@@ -8388,11 +7884,6 @@
         }
       }
     },
-    "unpipe": {
-      "version": "1.0.0",
-      "resolved": "http://registry.npm.taobao.org/unpipe/download/unpipe-1.0.0.tgz",
-      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
-    },
     "unset-value": {
       "version": "1.0.0",
       "resolved": "http://registry.npm.taobao.org/unset-value/download/unset-value-1.0.0.tgz",
@@ -8476,11 +7967,6 @@
         "prepend-http": "2.0.0"
       }
     },
-    "url-set-query": {
-      "version": "1.0.0",
-      "resolved": "http://registry.npm.taobao.org/url-set-query/download/url-set-query-1.0.0.tgz",
-      "integrity": "sha1-AW6M/Xwg7gXK/neV6JK9BwL6ozk="
-    },
     "url-to-options": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/url-to-options/download/url-to-options-1.0.1.tgz",
@@ -8504,7 +7990,8 @@
     "utf8": {
       "version": "2.1.1",
       "resolved": "http://registry.npm.taobao.org/utf8/download/utf8-2.1.1.tgz",
-      "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g="
+      "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g=",
+      "dev": true
     },
     "util": {
       "version": "0.10.3",
@@ -8526,16 +8013,6 @@
       "resolved": "http://registry.npm.taobao.org/util-deprecate/download/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
-    "utils-merge": {
-      "version": "1.0.1",
-      "resolved": "http://registry.npm.taobao.org/utils-merge/download/utils-merge-1.0.1.tgz",
-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
-    },
-    "uuid": {
-      "version": "3.2.1",
-      "resolved": "http://registry.npm.taobao.org/uuid/download/uuid-3.2.1.tgz",
-      "integrity": "sha1-EsUou51Y0LkmXZovbw/ovhf/HxQ="
-    },
     "v8-compile-cache": {
       "version": "1.1.2",
       "resolved": "http://registry.npm.taobao.org/v8-compile-cache/download/v8-compile-cache-1.1.2.tgz",
@@ -8550,21 +8027,6 @@
         "spdx-expression-parse": "3.0.0"
       }
     },
-    "vary": {
-      "version": "1.1.2",
-      "resolved": "http://registry.npm.taobao.org/vary/download/vary-1.1.2.tgz",
-      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
-    },
-    "verror": {
-      "version": "1.10.0",
-      "resolved": "http://registry.npm.taobao.org/verror/download/verror-1.10.0.tgz",
-      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "requires": {
-        "assert-plus": "1.0.0",
-        "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
-      }
-    },
     "vinyl": {
       "version": "1.2.0",
       "resolved": "http://registry.npm.taobao.org/vinyl/download/vinyl-1.2.0.tgz",
@@ -8622,7 +8084,7 @@
       "integrity": "sha1-gewXhBRUkfLqqJVbMcBgSeB8Xn0=",
       "dev": true,
       "requires": {
-        "bignumber.js": "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
+        "bignumber.js": "bignumber.js@git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
         "crypto-js": "3.1.8",
         "utf8": "2.1.1",
         "xhr2": "0.1.4",
@@ -8630,28 +8092,36 @@
       }
     },
     "web3-utils": {
-      "version": "1.0.0-beta.34",
-      "resolved": "http://registry.npm.taobao.org/web3-utils/download/web3-utils-1.0.0-beta.34.tgz",
-      "integrity": "sha1-lBH8OarvOcpOBhafdiKX2f8CCXA=",
+      "version": "1.7.3",
+      "resolved": "https://registry.npmjs.org/web3-utils/-/web3-utils-1.7.3.tgz",
+      "integrity": "sha512-g6nQgvb/bUpVUIxJE+ezVN+rYwYmlFyMvMIRSuqpi1dk6ApDD00YNArrk7sPcZnjvxOJ76813Xs2vIN2rgh4lg==",
       "requires": {
-        "bn.js": "4.11.6",
-        "eth-lib": "0.1.27",
+        "bn.js": "^4.11.9",
+        "ethereum-bloom-filters": "^1.0.6",
+        "ethereumjs-util": "^7.1.0",
         "ethjs-unit": "0.1.6",
         "number-to-bn": "1.7.0",
-        "randomhex": "0.1.5",
-        "underscore": "1.8.3",
-        "utf8": "2.1.1"
+        "randombytes": "^2.1.0",
+        "utf8": "3.0.0"
       },
       "dependencies": {
         "bn.js": {
-          "version": "4.11.6",
-          "resolved": "http://registry.npm.taobao.org/bn.js/download/bn.js-4.11.6.tgz",
-          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+          "version": "4.12.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA=="
+        },
+        "randombytes": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
+          "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
+          "requires": {
+            "safe-buffer": "^5.1.0"
+          }
         },
-        "underscore": {
-          "version": "1.8.3",
-          "resolved": "http://registry.npm.taobao.org/underscore/download/underscore-1.8.3.tgz",
-          "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+        "utf8": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/utf8/-/utf8-3.0.0.tgz",
+          "integrity": "sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ=="
         }
       }
     },
@@ -9025,49 +8495,6 @@
         "slide": "1.1.6"
       }
     },
-    "ws": {
-      "version": "3.3.3",
-      "resolved": "http://registry.npm.taobao.org/ws/download/ws-3.3.3.tgz",
-      "integrity": "sha1-8c+E/i1ekB686U767OeF8YeiKPI=",
-      "requires": {
-        "async-limiter": "1.0.0",
-        "safe-buffer": "5.1.1",
-        "ultron": "1.1.1"
-      }
-    },
-    "xhr": {
-      "version": "2.4.1",
-      "resolved": "http://registry.npm.taobao.org/xhr/download/xhr-2.4.1.tgz",
-      "integrity": "sha1-upgsztIFrl7sOHFprJ3HfKSFPTg=",
-      "requires": {
-        "global": "4.3.2",
-        "is-function": "1.0.1",
-        "parse-headers": "2.0.1",
-        "xtend": "4.0.1"
-      }
-    },
-    "xhr-request": {
-      "version": "1.1.0",
-      "resolved": "http://registry.npm.taobao.org/xhr-request/download/xhr-request-1.1.0.tgz",
-      "integrity": "sha1-9KfBhoufGYcjRE2C3K4xdkPy4u0=",
-      "requires": {
-        "buffer-to-arraybuffer": "0.0.5",
-        "object-assign": "4.1.1",
-        "query-string": "5.1.1",
-        "simple-get": "2.7.0",
-        "timed-out": "4.0.1",
-        "url-set-query": "1.0.0",
-        "xhr": "2.4.1"
-      }
-    },
-    "xhr-request-promise": {
-      "version": "0.1.2",
-      "resolved": "http://registry.npm.taobao.org/xhr-request-promise/download/xhr-request-promise-0.1.2.tgz",
-      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
-      "requires": {
-        "xhr-request": "1.1.0"
-      }
-    },
     "xhr2": {
       "version": "0.1.4",
       "resolved": "http://registry.npm.taobao.org/xhr2/download/xhr2-0.1.4.tgz",
diff --git a/package.json b/package.json
index 0411d1cc..2882aef9 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "ganache-cli": "^6.1.0",
     "solc": "^0.4.20",
     "testrpc": "0.0.1",
-    "web3-utils": "^1.0.0-beta.31"
+    "web3-utils": "^1.7.3"
   },
   "devDependencies": {
     "solidity-coverage": "^0.3.5",