diff --git a/cert_tools/src/main.rs b/cert_tools/src/main.rs
index 546e303..dbce247 100644
--- a/cert_tools/src/main.rs
+++ b/cert_tools/src/main.rs
@@ -1,6 +1,6 @@
 use clap::{Parser, Subcommand};
 use generate_key::{generate_key_file, GenerateKeyOptions};
-use power_equal::PowerEqualResultOption;
+use power_equal::{calculate_equal_result, PowerEqualResultOption};
 
 mod generate_key;
 mod power_equal;
@@ -28,8 +28,6 @@ fn main() {
     let args = Cli::parse();
     match args.command {
         Commands::Generate(options) => generate_key_file(options),
-        Commands::CalcEqual(_options) => {
-            println!("Calculating the equal result for power plugin");
-        }
+        Commands::CalcEqual(options) => calculate_equal_result(options),
     }
 }
diff --git a/cert_tools/src/power_equal.rs b/cert_tools/src/power_equal.rs
index 6b1d575..82c7579 100644
--- a/cert_tools/src/power_equal.rs
+++ b/cert_tools/src/power_equal.rs
@@ -7,3 +7,10 @@ pub struct PowerEqualResultOption {
     #[arg(help = "Certificate file")]
     key_file: PathBuf,
 }
+
+pub fn calculate_equal_result(options: PowerEqualResultOption) {
+    let cert = cert_lib::load_certificate(options.key_file).expect("load certificate failed");
+    let result =
+        cert_lib::calculate_power_euqal_result(cert).expect("calculate equal result failed");
+    println!("{}", result);
+}