diff --git a/types/shasum/index.d.ts b/types/shasum/index.d.ts
new file mode 100644
index 0000000000..500c811d07
--- /dev/null
+++ b/types/shasum/index.d.ts
@@ -0,0 +1,14 @@
+// Type definitions for shasum 1.0
+// Project: https://github.com/dominictarr/shasum
+// Definitions by: TeamworkGuy2 <https://github.com/TeamworkGuy2>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/**
+ * Single function that return the sha1sum. Installing this is just a little bit quicker than reading the crypto documentation.
+ *   var shasum = require('shasum')
+ *   shasum(string || buffer || object)
+ * It also works in the browser with browserify.
+ */
+declare function shasum(str: any, alg?: string | null, format?: "hex" | "latin1" | "base64"): string;
+
+export = shasum;
diff --git a/types/shasum/shasum-tests.ts b/types/shasum/shasum-tests.ts
new file mode 100644
index 0000000000..01c0ba32fc
--- /dev/null
+++ b/types/shasum/shasum-tests.ts
@@ -0,0 +1,7 @@
+import shasum = require("shasum");
+
+function test(): string {
+    const res1 = shasum("source");
+    const res2 = shasum({ prop: "source" }, null, "hex");
+    return res1 || res2;
+}
diff --git a/types/shasum/tsconfig.json b/types/shasum/tsconfig.json
new file mode 100644
index 0000000000..a0be2a9c4b
--- /dev/null
+++ b/types/shasum/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "shasum-tests.ts"
+    ]
+}
\ No newline at end of file
diff --git a/types/shasum/tslint.json b/types/shasum/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/shasum/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }