diff --git a/package-lock.json b/package-lock.json
index 82fa763..49be84e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1772,6 +1772,23 @@
         "elliptic": "^6.0.0",
         "inherits": "^2.0.1",
         "parse-asn1": "^5.0.0"
+      },
+      "dependencies": {
+        "elliptic": {
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
+          "dev": true,
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.0",
+            "inherits": "^2.0.1",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.0"
+          }
+        }
       }
     },
     "browserify-zlib": {
@@ -2238,26 +2255,6 @@
         "webpack-sources": "^1.0.1"
       }
     },
-    "compressjs": {
-      "version": "github:openpgpjs/compressjs#bfbb371a34d1750afa34bfa49156461acdab79a9",
-      "from": "github:openpgpjs/compressjs",
-      "dev": true,
-      "requires": {
-        "amdefine": "~1.0.0",
-        "commander": "~2.8.1"
-      },
-      "dependencies": {
-        "commander": {
-          "version": "2.8.1",
-          "resolved": "http://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
-          "integrity": "sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=",
-          "dev": true,
-          "requires": {
-            "graceful-readlink": ">= 1.0.0"
-          }
-        }
-      }
-    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -2436,6 +2433,23 @@
       "requires": {
         "bn.js": "^4.1.0",
         "elliptic": "^6.0.0"
+      },
+      "dependencies": {
+        "elliptic": {
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
+          "dev": true,
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.0",
+            "inherits": "^2.0.1",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.0"
+          }
+        }
       }
     },
     "create-error-class": {
@@ -2773,6 +2787,16 @@
       "dev": true,
       "requires": {
         "iota.crypto.js": "github:iotaledger/iota.crypto.js#05c5b4485ad8232fd5b9145e02fe988a035a7704"
+      },
+      "dependencies": {
+        "iota.crypto.js": {
+          "version": "github:iotaledger/iota.crypto.js#05c5b4485ad8232fd5b9145e02fe988a035a7704",
+          "from": "github:iotaledger/iota.crypto.js",
+          "dev": true,
+          "requires": {
+            "crypto-js": "^3.1.9-1"
+          }
+        }
       }
     },
     "currently-unhandled": {
@@ -3113,9 +3137,8 @@
       "dev": true
     },
     "elliptic": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
-      "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
+      "version": "github:openpgpjs/elliptic#e187e706e11fa51bcd20e46e5119054be4e2a4a6",
+      "from": "github:openpgpjs/elliptic#e187e706e11fa51bcd20e46e5119054be4e2a4a6",
       "dev": true,
       "requires": {
         "bn.js": "^4.4.0",
@@ -4231,7 +4254,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -4252,12 +4276,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -4272,17 +4298,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4399,7 +4428,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4411,6 +4441,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4425,6 +4456,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -4432,12 +4464,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -4456,6 +4490,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4536,7 +4571,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4548,6 +4584,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4633,7 +4670,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4669,6 +4707,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4688,6 +4727,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4731,12 +4771,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -5333,14 +5375,6 @@
         "loose-envify": "^1.0.0"
       }
     },
-    "iota.crypto.js": {
-      "version": "github:iotaledger/iota.crypto.js#05c5b4485ad8232fd5b9145e02fe988a035a7704",
-      "from": "github:iotaledger/iota.crypto.js",
-      "dev": true,
-      "requires": {
-        "crypto-js": "^3.1.9-1"
-      }
-    },
     "iota.lib.js": {
       "version": "0.5.1",
       "resolved": "https://registry.npmjs.org/iota.lib.js/-/iota.lib.js-0.5.1.tgz",
@@ -6554,18 +6588,22 @@
             "ieee754": "^1.1.4"
           }
         },
-        "elliptic": {
-          "version": "github:openpgpjs/elliptic#e187e706e11fa51bcd20e46e5119054be4e2a4a6",
-          "from": "github:openpgpjs/elliptic",
+        "commander": {
+          "version": "2.8.1",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
+          "integrity": "sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=",
           "dev": true,
           "requires": {
-            "bn.js": "^4.4.0",
-            "brorand": "^1.0.1",
-            "hash.js": "^1.0.0",
-            "hmac-drbg": "^1.0.0",
-            "inherits": "^2.0.1",
-            "minimalistic-assert": "^1.0.0",
-            "minimalistic-crypto-utils": "^1.0.0"
+            "graceful-readlink": ">= 1.0.0"
+          }
+        },
+        "compressjs": {
+          "version": "github:openpgpjs/compressjs#bfbb371a34d1750afa34bfa49156461acdab79a9",
+          "from": "github:openpgpjs/compressjs",
+          "dev": true,
+          "requires": {
+            "amdefine": "~1.0.0",
+            "commander": "~2.8.1"
           }
         }
       }