diff --git a/package-lock.json b/package-lock.json
index 502a3da..01e0a4f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -88,7 +88,7 @@
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-      "resolved": "http://registry.npmjs.org/async/-/async-0.2.10.tgz",
+      "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
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@@ -160,7 +160,7 @@
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-          "resolved": "http://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
+          "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
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@@ -180,7 +180,7 @@
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-      "resolved": "http://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
+      "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
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@@ -544,17 +544,29 @@
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+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
+      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
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-        "brorand": "^1.0.1",
+        "bn.js": "^4.11.9",
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-        "hmac-drbg": "^1.0.0",
-        "inherits": "^2.0.1",
-        "minimalistic-assert": "^1.0.0",
-        "minimalistic-crypto-utils": "^1.0.0"
+        "hmac-drbg": "^1.0.1",
+        "inherits": "^2.0.4",
+        "minimalistic-assert": "^1.0.1",
+        "minimalistic-crypto-utils": "^1.0.1"
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+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
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+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        }
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@@ -911,7 +923,7 @@
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-              "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+              "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -1189,7 +1201,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
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@@ -1271,6 +1283,10 @@
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           "integrity": "sha1-cT2LgY2kIGh0C/aDhtBHnmb8ins="
+        },
+        "webcrypto-shim": {
+          "version": "github:dignifiedquire/webcrypto-shim#190bc9ec341375df6025b17ae12ddb2428ea49c8",
+          "from": "github:dignifiedquire/webcrypto-shim#master"
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@@ -1574,7 +1590,7 @@
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-      "resolved": "http://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
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@@ -1602,7 +1618,7 @@
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         "underscore": {
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-          "resolved": "http://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
+          "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
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@@ -1731,7 +1747,7 @@
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-          "resolved": "http://registry.npmjs.org/libp2p-crypto/-/libp2p-crypto-0.13.0.tgz",
+          "resolved": "https://registry.npmjs.org/libp2p-crypto/-/libp2p-crypto-0.13.0.tgz",
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@@ -1775,7 +1791,7 @@
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-          "from": "github:dignifiedquire/webcrypto-shim#190bc9ec341375df6025b17ae12ddb2428ea49c8"
+          "from": "github:dignifiedquire/webcrypto-shim#master"
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@@ -1800,7 +1816,7 @@
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-          "resolved": "http://registry.npmjs.org/libp2p-crypto/-/libp2p-crypto-0.12.1.tgz",
+          "resolved": "https://registry.npmjs.org/libp2p-crypto/-/libp2p-crypto-0.12.1.tgz",
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@@ -1826,7 +1842,7 @@
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-          "resolved": "http://registry.npmjs.org/multiaddr/-/multiaddr-4.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/multiaddr/-/multiaddr-4.0.0.tgz",
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@@ -1854,7 +1870,7 @@
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-          "resolved": "http://registry.npmjs.org/peer-id/-/peer-id-0.10.7.tgz",
+          "resolved": "https://registry.npmjs.org/peer-id/-/peer-id-0.10.7.tgz",
           "integrity": "sha512-VEpMFcL9q0NQijmR0jsj38OGbY4yzaWMEareVkDahopmlNT+Cpsot8btPgsgBBApP9NiZj2Enwvh8rZN30ocQw==",
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@@ -1870,7 +1886,7 @@
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         "webcrypto-shim": {
           "version": "github:dignifiedquire/webcrypto-shim#190bc9ec341375df6025b17ae12ddb2428ea49c8",
-          "from": "github:dignifiedquire/webcrypto-shim#190bc9ec341375df6025b17ae12ddb2428ea49c8"
+          "from": "github:dignifiedquire/webcrypto-shim#master"
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@@ -2048,7 +2064,7 @@
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-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
       "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
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@@ -2217,7 +2233,7 @@
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-      "resolved": "http://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
     },
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@@ -2500,10 +2516,6 @@
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-    "webcrypto-shim": {
-      "version": "github:dignifiedquire/webcrypto-shim#190bc9ec341375df6025b17ae12ddb2428ea49c8",
-      "from": "github:dignifiedquire/webcrypto-shim#master"
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       "resolved": "https://registry.npmjs.org/websocket/-/websocket-1.0.28.tgz",