diff --git a/lib/sha256.ts b/lib/sha256.ts
new file mode 100644
index 0000000000..f06c173c96
--- /dev/null
+++ b/lib/sha256.ts
@@ -0,0 +1,10 @@
+const crypto = require('crypto');
+
+function sha256(input: string): string {
+  return crypto
+      .createHash('sha256')
+      .update(input)
+      .digest("hex");
+}
+
+export default sha256;
\ No newline at end of file