diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..d0eb512
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "nixEnvSelector.nixFile": "${workspaceRoot}/shell.nix"
+}
diff --git a/cmd/ent/cmd/digest.go b/cmd/ent/cmd/digest.go
new file mode 100644
index 0000000..52b7043
--- /dev/null
+++ b/cmd/ent/cmd/digest.go
@@ -0,0 +1,72 @@
+//
+// Copyright 2022 The Ent Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/fatih/color"
+	"github.com/google/ent/utils"
+	"github.com/spf13/cobra"
+)
+
+var digestCmd = &cobra.Command{
+	Use:  "digest [filename]",
+	Args: cobra.MaximumNArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		filename := ""
+		if len(args) > 0 {
+			filename = args[0]
+		}
+		if filename == "" {
+			err := digestStdin()
+			if err != nil {
+				log.Fatal(err)
+			}
+		} else {
+			err := digestFile(filename)
+			if err != nil {
+				log.Fatal(err)
+			}
+		}
+
+	},
+}
+
+func digestStdin() error {
+	data, err := ioutil.ReadAll(os.Stdin)
+	if err != nil {
+		return fmt.Errorf("could not read stdin: %v", err)
+	}
+	return digestData(data)
+}
+
+func digestFile(filename string) error {
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return fmt.Errorf("could not read file %q: %v", filename, err)
+	}
+	return digestData(data)
+}
+
+func digestData(data []byte) error {
+	localDigest := utils.ComputeDigest(data)
+	fmt.Printf("%s\n", color.YellowString(string(localDigest)))
+	return nil
+}
diff --git a/cmd/ent/cmd/root.go b/cmd/ent/cmd/root.go
index d1dfd30..5c369c4 100644
--- a/cmd/ent/cmd/root.go
+++ b/cmd/ent/cmd/root.go
@@ -133,6 +133,7 @@ func Execute() {
 }
 
 func init() {
+	rootCmd.AddCommand(digestCmd)
 	rootCmd.AddCommand(getCmd)
 	rootCmd.AddCommand(putCmd)
 	rootCmd.AddCommand(statusCmd)
diff --git a/shell.nix b/shell.nix
index bdc874f..a0f0606 100644
--- a/shell.nix
+++ b/shell.nix
@@ -2,5 +2,6 @@
   pkgs.mkShell {
     nativeBuildInputs = [
         pkgs.nodePackages.prettier
+        pkgs.buildPackages.go
     ];
 }