diff --git a/src/core/operations/LS47Decrypt.mjs b/src/core/operations/LS47Decrypt.mjs
index a5a92ebf..cb92cd27 100644
--- a/src/core/operations/LS47Decrypt.mjs
+++ b/src/core/operations/LS47Decrypt.mjs
@@ -20,8 +20,8 @@ class LS47Decrypt extends Operation {
 
         this.name = "LS47 Decrypt";
         this.module = "Crypto";
-        this.description = "";
-        this.infoURL = "";
+        this.description = "This is a slight improvement of the ElsieFour cipher as described by Alan Kaminsky. We use 7x7 characters instead of original (barely fitting) 6x6, to be able to encrypt some structured information. We also describe a simple key-expansion algorithm, because remembering passwords is popular. Similar security considerations as with ElsieFour hold.\nThe LS47 alphabet consists of following characters: _abcdefghijklmnopqrstuvwxyz.0123456789,-+*/:?!'()\nA LS47 key is a permutation of the alphabet that is then represented in a 7x7 grid used for the encryption or decryption.";
+        this.infoURL = "https://gitea.blesmrt.net/exa/ls47/src/branch/master";
         this.inputType = "string";
         this.outputType = "string";
         this.args = [
diff --git a/src/core/operations/LS47Encrypt.mjs b/src/core/operations/LS47Encrypt.mjs
index f82baaab..51283844 100644
--- a/src/core/operations/LS47Encrypt.mjs
+++ b/src/core/operations/LS47Encrypt.mjs
@@ -20,8 +20,8 @@ class LS47Encrypt extends Operation {
 
         this.name = "LS47 Encrypt";
         this.module = "Crypto";
-        this.description = "";
-        this.infoURL = "";
+        this.description = "This is a slight improvement of the ElsieFour cipher as described by Alan Kaminsky. We use 7x7 characters instead of original (barely fitting) 6x6, to be able to encrypt some structured information. We also describe a simple key-expansion algorithm, because remembering passwords is popular. Similar security considerations as with ElsieFour hold.\nThe LS47 alphabet consists of following characters: _abcdefghijklmnopqrstuvwxyz.0123456789,-+*/:?!'()\nA LS47 key is a permutation of the alphabet that is then represented in a 7x7 grid used for the encryption or decryption.";
+        this.infoURL = "https://gitea.blesmrt.net/exa/ls47/src/branch/master";
         this.inputType = "string";
         this.outputType = "string";
         this.args = [
diff --git a/tests/operations/index.mjs b/tests/operations/index.mjs
index bf440414..b3731727 100644
--- a/tests/operations/index.mjs
+++ b/tests/operations/index.mjs
@@ -96,6 +96,7 @@ import "./tests/DefangIP.mjs";
 import "./tests/ParseUDP.mjs";
 import "./tests/AvroToJSON.mjs";
 import "./tests/Lorenz.mjs";
+import "./tests/LS47.mjs";
 
 
 // Cannot test operations that use the File type yet
diff --git a/tests/operations/tests/LS47.mjs b/tests/operations/tests/LS47.mjs
new file mode 100644
index 00000000..40d876ee
--- /dev/null
+++ b/tests/operations/tests/LS47.mjs
@@ -0,0 +1,45 @@
+/**
+ * Cartesian Product tests.
+ *
+ * @author n1073645 [n1073645@gmail.com]
+ *
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "LS47 Encrypt",
+        input: "thequickbrownfoxjumped",
+        expectedOutput: "(,t74ci78cp/8trx*yesu:alp1wqy",
+        recipeConfig: [
+            {
+                op: "LS47 Encrypt",
+                args: ["helloworld", 0, "test"],
+            },
+        ],
+    },
+    {
+        name: "LS47 Decrypt",
+        input: "(,t74ci78cp/8trx*yesu:alp1wqy",
+        expectedOutput: "thequickbrownfoxjumped---test",
+        recipeConfig: [
+            {
+                op: "LS47 Decrypt",
+                args: ["helloworld", 0],
+            },
+        ],
+    },
+    {
+        name: "LS47 Encrypt",
+        input: "thequickbrownfoxjumped",
+        expectedOutput: "Letter H is not included in LS47",
+        recipeConfig: [
+            {
+                op: "LS47 Encrypt",
+                args: ["Helloworld", 0, "test"],
+            },
+        ],
+    }
+]);