diff --git a/Pipfile b/Pipfile
index 33b43ad..1535358 100644
--- a/Pipfile
+++ b/Pipfile
@@ -11,7 +11,7 @@ asn1crypto = "==0.24.0"
 bcrypt = "==3.1.6"
 cffi = "==1.11.5"
 click = "==7.0"
-cryptography = "==2.5"
+cryptography = "==3.2"
 enum34 = "==1.1.6"
 idna = "==2.8"
 ipaddress = "==1.0.22"
diff --git a/Pipfile.lock b/Pipfile.lock
index 1d938f4..4f88281 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "891d20b90be448c5f087550f559abe8973c2b7ba2b09545bb689cf177c85abf5"
+            "sha256": "a6f896bf26c5a660493d6cf2e454415681a24703fe56bc82336e8dbb4a19c32a"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -97,28 +97,31 @@
         },
         "cryptography": {
             "hashes": [
-                "sha256:05b3ded5e88747d28ee3ef493f2b92cbb947c1e45cf98cfef22e6d38bb67d4af",
-                "sha256:06826e7f72d1770e186e9c90e76b4f84d90cdb917b47ff88d8dc59a7b10e2b1e",
-                "sha256:08b753df3672b7066e74376f42ce8fc4683e4fd1358d34c80f502e939ee944d2",
-                "sha256:2cd29bd1911782baaee890544c653bb03ec7d95ebeb144d714b0f5c33deb55c7",
-                "sha256:31e5637e9036d966824edaa91bf0aa39dc6f525a1c599f39fd5c50340264e079",
-                "sha256:42fad67d7072216a49e34f923d8cbda9edacbf6633b19a79655e88a1b4857063",
-                "sha256:4946b67235b9d2ea7d31307be9d5ad5959d6c4a8f98f900157b47abddf698401",
-                "sha256:522fdb2809603ee97a4d0ef2f8d617bc791eb483313ba307cb9c0a773e5e5695",
-                "sha256:6f841c7272645dd7c65b07b7108adfa8af0aaea57f27b7f59e01d41f75444c85",
-                "sha256:7d335e35306af5b9bc0560ca39f740dfc8def72749645e193dd35be11fb323b3",
-                "sha256:8504661ffe324837f5c4607347eeee4cf0fcad689163c6e9c8d3b18cf1f4a4ad",
-                "sha256:9260b201ce584d7825d900c88700aa0bd6b40d4ebac7b213857bd2babee9dbca",
-                "sha256:9a30384cc402eac099210ab9b8801b2ae21e591831253883decdb4513b77a3cd",
-                "sha256:9e29af877c29338f0cab5f049ccc8bd3ead289a557f144376c4fbc7d1b98914f",
-                "sha256:ab50da871bc109b2d9389259aac269dd1b7c7413ee02d06fe4e486ed26882159",
-                "sha256:b13c80b877e73bcb6f012813c6f4a9334fcf4b0e96681c5a15dac578f2eedfa0",
-                "sha256:bfe66b577a7118e05b04141f0f1ed0959552d45672aa7ecb3d91e319d846001e",
-                "sha256:e091bd424567efa4b9d94287a952597c05d22155a13716bf5f9f746b9dc906d3",
-                "sha256:fa2b38c8519c5a3aa6e2b4e1cf1a549b54acda6adb25397ff542068e73d1ed00"
+                "sha256:22f8251f68953553af4f9c11ec5f191198bc96cff9f0ac5dd5ff94daede0ee6d",
+                "sha256:284e275e3c099a80831f9898fb5c9559120d27675c3521278faba54e584a7832",
+                "sha256:3e17d02941c0f169c5b877597ca8be895fca0e5e3eb882526a74aa4804380a98",
+                "sha256:52a47e60953679eea0b4d490ca3c241fb1b166a7b161847ef4667dfd49e7699d",
+                "sha256:57b8c1ed13b8aa386cabbfde3be175d7b155682470b0e259fecfe53850967f8a",
+                "sha256:6a8f64ed096d13f92d1f601a92d9fd1f1025dc73a2ca1ced46dcf5e0d4930943",
+                "sha256:6e8a3c7c45101a7eeee93102500e1b08f2307c717ff553fcb3c1127efc9b6917",
+                "sha256:7ef41304bf978f33cfb6f43ca13bb0faac0c99cda33693aa20ad4f5e34e8cb8f",
+                "sha256:87c2fffd61e934bc0e2c927c3764c20b22d7f5f7f812ee1a477de4c89b044ca6",
+                "sha256:88069392cd9a1e68d2cfd5c3a2b0d72a44ef3b24b8977a4f7956e9e3c4c9477a",
+                "sha256:8a0866891326d3badb17c5fd3e02c926b635e8923fa271b4813cd4d972a57ff3",
+                "sha256:8f0fd8b0751d75c4483c534b209e39e918f0d14232c0d8a2a76e687f64ced831",
+                "sha256:9a07e6d255053674506091d63ab4270a119e9fc83462c7ab1dbcb495b76307af",
+                "sha256:9a8580c9afcdcddabbd064c0a74f337af74ff4529cdf3a12fa2e9782d677a2e5",
+                "sha256:bd80bc156d3729b38cb227a5a76532aef693b7ac9e395eea8063ee50ceed46a5",
+                "sha256:d1cbc3426e6150583b22b517ef3720036d7e3152d428c864ff0f3fcad2b97591",
+                "sha256:e15ac84dcdb89f92424cbaca4b0b34e211e7ce3ee7b0ec0e4f3c55cee65fae5a",
+                "sha256:e4789b84f8dedf190148441f7c5bfe7244782d9cbb194a36e17b91e7d3e1cca9",
+                "sha256:f01c9116bfb3ad2831e125a73dcd957d173d6ddca7701528eff1e7d97972872c",
+                "sha256:f0e3986f6cce007216b23c490f093f35ce2068f3c244051e559f647f6731b7ae",
+                "sha256:f2aa3f8ba9e2e3fd49bd3de743b976ab192fbf0eb0348cebde5d2a9de0090a9f",
+                "sha256:fb70a4cedd69dc52396ee114416a3656e011fb0311fca55eb55c7be6ed9c8aef"
             ],
             "index": "pypi",
-            "version": "==2.5"
+            "version": "==3.2"
         },
         "enum34": {
             "hashes": [
@@ -272,6 +275,7 @@
                 "sha256:30f36a9c70450c7878053fa1344aca0145fd47d845270b43a7ee9192a051bf39",
                 "sha256:37aa336a317209f1bb099ad177fef0da45be36a2aa664507c5d72015f956c310",
                 "sha256:4943decfc5b905748f0756fdd99d4f9498d7064815c4cf3643820c9028b711d1",
+                "sha256:53126cd91356342dcae7e209f840212a58dcf1177ad52c1d938d428eebc9fee5",
                 "sha256:57ef38a65056e7800859e5ba9e6091053cd06e1038983016effaffe0efcd594a",
                 "sha256:5bd61e9b44c543016ce1f6aef48606280e45f892a928ca7068fba30021e9b786",
                 "sha256:6482d3017a0c0327a49dddc8bd1074cc730d45db2ccb09c3bac1f8f32d1eb61b",
@@ -280,6 +284,7 @@
                 "sha256:a39f54ccbcd2757d1d63b0ec00a00980c0b382c62865b61a505163943624ab20",
                 "sha256:aabb0c5232910a20eec8563503c153a8e78bbf5459490c49ab31f6adf3f3a415",
                 "sha256:bd4ecb473a96ad0f90c20acba4f0bf0df91a4e03a1f4dd6a4bdc9ca75aa3a715",
+                "sha256:bf459128feb543cfca16a95f8da31e2e65e4c5257d2f3dfa8c0c1031139c9c92",
                 "sha256:e2da3c13307eac601f3de04887624939aca8ee3c9488a0bb0eca4fb9401fc6b1",
                 "sha256:f67814c38162f4deb31f68d590771a29d5ae3b1bd64b75cf232308e5c74777e0"
             ],
@@ -323,39 +328,46 @@
     "develop": {
         "atomicwrites": {
             "hashes": [
-                "sha256:0312ad34fcad8fac3704d441f7b317e50af620823353ec657a53e981f92920c0",
-                "sha256:ec9ae8adaae229e4f8446952d204a3e4b5fdd2d099f9be3aaf556120135fb3ee"
+                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
+                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
             ],
-            "version": "==1.2.1"
+            "version": "==1.4.0"
         },
         "attrs": {
             "hashes": [
-                "sha256:10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69",
-                "sha256:ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb"
+                "sha256:26b54ddbbb9ee1d34d5d3668dd37d6cf74990ab23c828c2888dccdceee395594",
+                "sha256:fce7fc47dfc976152e82d53ff92fa0407700c21acd20886a13777a0d20e655dc"
             ],
-            "version": "==18.2.0"
+            "version": "==20.2.0"
+        },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:77a540690e24b0305878c37ffd421785a6f7e53c8b5720d211b211de8d0e95da",
+                "sha256:cefa1a2f919b866c5beb7c9f7b0ebb4061f30a8a9bf16d609b000e2dfaceb9c3"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==2.0.0"
         },
         "more-itertools": {
             "hashes": [
-                "sha256:38a936c0a6d98a38bcc2d03fdaaedaba9f412879461dd2ceff8d37564d6522e4",
-                "sha256:c0a5785b1109a6bd7fac76d6837fd1feca158e54e521ccd2ae8bfe393cc9d4fc",
-                "sha256:fe7a7cae1ccb57d33952113ff4fa1bc5f879963600ed74918f1236e212ee50b9"
+                "sha256:6f83822ae94818eae2612063a5101a7311e68ae8002005b5e05f03fd74a86a20",
+                "sha256:9b30f12df9393f0d28af9210ff8efe48d10c94f73e5daf886f10c4b0b0b4f03c"
             ],
-            "version": "==5.0.0"
+            "version": "==8.5.0"
         },
         "pluggy": {
             "hashes": [
-                "sha256:8ddc32f03971bfdf900a81961a48ccf2fb677cf7715108f85295c67405798616",
-                "sha256:980710797ff6a041e9a73a5787804f848996ecaa6f8a1b1e08224a5894f2074a"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "version": "==0.8.1"
+            "version": "==0.13.1"
         },
         "py": {
             "hashes": [
-                "sha256:bf92637198836372b520efcba9e020c330123be8ce527e535d185ed4b6f45694",
-                "sha256:e76826342cefe3c3d5f7e8ee4316b80d1dd8a300781612ddbc765c17ba25a6c6"
+                "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2",
+                "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"
             ],
-            "version": "==1.7.0"
+            "version": "==1.9.0"
         },
         "pytest": {
             "hashes": [
@@ -372,6 +384,13 @@
             ],
             "index": "pypi",
             "version": "==1.12.0"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108",
+                "sha256:ed5eee1974372595f9e416cc7bbeeb12335201d8081ca8a0743c954d4446e5cb"
+            ],
+            "version": "==3.4.0"
         }
     }
 }