diff --git a/Cargo.lock b/Cargo.lock
index 286f085..9cf127a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1586,6 +1586,7 @@ dependencies = [
  "tower-http",
  "tracing",
  "tracing-subscriber",
+ "unicode-normalization",
  "url",
  "uuid",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index b7a8910..c1b9a69 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,5 +21,6 @@ tokio = { version = "1.29.1", features = ["full"] }
 tower-http = { version = "0.4.4", features = ["cors"] }
 tracing = "0.1.37"
 tracing-subscriber = "0.3.17"
+unicode-normalization = "0.1.22"
 url = "2.4.0"
 uuid = { version = "1.4.0", features = ["serde", "v4"] }
diff --git a/src/app/authentication.rs b/src/app/authentication.rs
index 4b802b5..1943bac 100644
--- a/src/app/authentication.rs
+++ b/src/app/authentication.rs
@@ -8,7 +8,7 @@ use std::sync::Arc;
 use tracing::*;
 
 pub async fn api_gen_passtoken(token_info: Basic, conn: Arc<Pool<Postgres>>) -> ReturnData<String> {
-    info!("Try gen passtoken");
+    info!("Try gen passtoken: {}", token_info.username());
     let res = gen_passtoken(token_info, conn).await;
     result_to_handler_with_log(
         |_| Some("Success gen passtoken".to_string()),
diff --git a/src/authentication.rs b/src/authentication.rs
index 9b15c9c..ff14446 100644
--- a/src/authentication.rs
+++ b/src/authentication.rs
@@ -6,6 +6,7 @@ use rand::{
 };
 use serde::{Deserialize, Serialize};
 use std::env;
+use unicode_normalization::UnicodeNormalization;
 use uuid::Uuid;
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, sqlx::FromRow)]
@@ -107,7 +108,7 @@ pub fn gen_passtoken(role: Role, key: &str) -> Result<Passtoken> {
                 .map_err(|_| QrError::Environment("ADMINISTRATOR_LIMIT_DAYS".to_string()))?
                 .parse::<usize>()
                 .map_err(|_| QrError::Environment("ADMINISTRATOR_LIMIT_DAYS".to_string()))?;
-            if key == pass {
+            if key.nfc().collect::<String>() == pass.nfc().collect::<String>() {
                 Ok(Passtoken::new(role, limit_days))
             } else {
                 Err(QrError::Authorized)
@@ -120,7 +121,7 @@ pub fn gen_passtoken(role: Role, key: &str) -> Result<Passtoken> {
                 .map_err(|_| QrError::Environment("EQUIPMENT_MANAGER_LIMIT_DAYS".to_string()))?
                 .parse::<usize>()
                 .map_err(|_| QrError::Environment("EQUIPMENT_MANAGER_LIMIT_DAYS".to_string()))?;
-            if key == pass {
+            if key.nfc().collect::<String>() == pass.nfc().collect::<String>() {
                 Ok(Passtoken::new(role, limit_days))
             } else {
                 Err(QrError::Authorized)
@@ -133,7 +134,7 @@ pub fn gen_passtoken(role: Role, key: &str) -> Result<Passtoken> {
                 .map_err(|_| QrError::Environment("GENERAL_LIMIT_DAYS".to_string()))?
                 .parse::<usize>()
                 .map_err(|_| QrError::Environment("GENERAL_LIMIT_DAYS".to_string()))?;
-            if key == pass {
+            if key.nfc().collect::<String>() == pass.nfc().collect::<String>() {
                 Ok(Passtoken::new(role, limit_days))
             } else {
                 Err(QrError::Authorized)