diff --git a/src/main/java/geoinfo/com/CryptoUtil.java b/src/main/java/geoinfo/com/CryptoUtil.java
index 0fd2c72e..b2562b19 100644
--- a/src/main/java/geoinfo/com/CryptoUtil.java
+++ b/src/main/java/geoinfo/com/CryptoUtil.java
@@ -22,7 +22,29 @@ import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.PBEKeySpec;
 import javax.crypto.spec.SecretKeySpec;
 
+import egovframework.com.cmm.service.EgovProperties;
+
 public class CryptoUtil {
+	// ===== [고정 키 AES - 빠른 버전] =====
+	private static SecretKeySpec FIXED_SECRET_KEY;
+
+	/**
+	 * encryptQuickAES key
+	 * 서버 기동시 1회 자동 실행됨 
+	 */
+	static {
+	    try {
+	        String key = EgovProperties.getProperty("SHA256.secret_key").trim();
+
+	        MessageDigest sha = MessageDigest.getInstance("SHA-256");
+	        byte[] keyBytes = sha.digest(key.getBytes("UTF-8"));
+
+	        FIXED_SECRET_KEY = new SecretKeySpec(keyBytes, "AES");
+	    } catch (Exception e) {
+	        throw new RuntimeException("CryptoUtil AES key initialization failed", e);
+	    }
+	}
+	
 	/**
 	 * MD5 로 해시 한다.
 	 *
@@ -142,4 +164,27 @@ public class CryptoUtil {
 		byte[] decryptedTextBytes = cipher.doFinal(encryoptedTextBytes);
 		return new String(decryptedTextBytes);
 	}
+	
+
+	/**
+	 * AES 고정 키 암호화 (빠름)
+	 */
+	public static String encryptQuickAES(String plainText) throws Exception {
+	    Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
+	    cipher.init(Cipher.ENCRYPT_MODE, FIXED_SECRET_KEY);
+	    return Base64.getEncoder()
+	                 .encodeToString(cipher.doFinal(plainText.getBytes("UTF-8")));
+	}
+
+	/**
+	 * AES 고정 키 복호화
+	 */
+	public static String decryptQuickAES(String cipherText) throws Exception {
+	    Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
+	    cipher.init(Cipher.DECRYPT_MODE, FIXED_SECRET_KEY);
+	    return new String(
+	        cipher.doFinal(Base64.getDecoder().decode(cipherText)),
+	        "UTF-8"
+	    );
+	}
 }
diff --git a/src/main/resources/egovframework/egovProps/globals.properties.sample b/src/main/resources/egovframework/egovProps/globals.properties.sample
index f09b90e1..49734508 100644
--- a/src/main/resources/egovframework/egovProps/globals.properties.sample
+++ b/src/main/resources/egovframework/egovProps/globals.properties.sample
@@ -37,4 +37,9 @@ JWT.secret_key=RnrxhWlQksportalSystem!@!@$#@!@#@!$12442321
 # The token expires in 1,800,000 milliseconds, which is equal to 30 minutes.
 JWT.access_expired=1800000
 O2MAP.wms.url=http://10.dbnt.co.kr:2936/o2map/services/wms
-LOCAL.wms.url=http://10.dbnt.co.kr:2936/o2map/services/wms
\ No newline at end of file
+LOCAL.wms.url=http://10.dbnt.co.kr:2936/o2map/services/wms
+
+###############################################
+###################  SHA256   #################
+###############################################
+SHA256.secret_key=RnrxhwlQksportalSystem!@34$%
\ No newline at end of file