diff --git a/src/main/java/com/eactive/eai/common/context/ElinkTransactionContext.java b/src/main/java/com/eactive/eai/common/context/ElinkTransactionContext.java
index 36adc9d..a591588 100644
--- a/src/main/java/com/eactive/eai/common/context/ElinkTransactionContext.java
+++ b/src/main/java/com/eactive/eai/common/context/ElinkTransactionContext.java
@@ -25,6 +25,7 @@ public class ElinkTransactionContext {
     // Context Map Keys
     private static final String KEY_SEED_SALT = "SEED_SALT";
     private static final String KEY_ENCRYPTION_KEY = "ENCRYPTION_KEY";
+    private static final String SEED_KEY = "SEED_KEY";
 
     // ==================== 컨텍스트 관리 ====================
 
@@ -96,4 +97,14 @@ public class ElinkTransactionContext {
     public static String getEncryptionKey() {
         return get(KEY_ENCRYPTION_KEY);
     }
+    
+    // ==================== 실 사용 변수 접근자 ====================
+
+    public static void setSeedKey(String encryptionKey) {
+        put(SEED_KEY, encryptionKey);
+    }
+
+    public static String getSeedKey() {
+        return get(SEED_KEY);
+    }
 }