diff --git a/mens-api/src/main/java/kr/xit/ens/cmm/service/CmmEnsFileService.java b/mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsFileService.java
similarity index 98%
rename from mens-api/src/main/java/kr/xit/ens/cmm/service/CmmEnsFileService.java
rename to mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsFileService.java
index 5d4eca6..fd96bef 100644
--- a/mens-api/src/main/java/kr/xit/ens/cmm/service/CmmEnsFileService.java
+++ b/mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsFileService.java
@@ -1,4 +1,4 @@
-package kr.xit.ens.cmm.service;
+package kr.xit.biz.cmm.service;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -29,7 +29,7 @@ import org.springframework.web.multipart.MultipartFile;
  * <pre>
  * description :
  *
- * packageName : kr.xit.ens.cmm.service
+ * packageName : kr.xit.biz.cmm.service
  * fileName    : CmmEnsFileService
  * author      : limju
  * date        : 2023-09-05
diff --git a/mens-api/src/main/java/kr/xit/ens/cmm/service/ICmmEnsFileService.java b/mens-api/src/main/java/kr/xit/biz/cmm/service/ICmmEnsFileService.java
similarity index 88%
rename from mens-api/src/main/java/kr/xit/ens/cmm/service/ICmmEnsFileService.java
rename to mens-api/src/main/java/kr/xit/biz/cmm/service/ICmmEnsFileService.java
index 3ca18be..6d832af 100644
--- a/mens-api/src/main/java/kr/xit/ens/cmm/service/ICmmEnsFileService.java
+++ b/mens-api/src/main/java/kr/xit/biz/cmm/service/ICmmEnsFileService.java
@@ -1,4 +1,4 @@
-package kr.xit.ens.cmm.service;
+package kr.xit.biz.cmm.service;
 
 import kr.xit.biz.ens.model.cmm.CmmEnsFileDTO.FmcExcelUpload;
 
@@ -6,7 +6,7 @@ import kr.xit.biz.ens.model.cmm.CmmEnsFileDTO.FmcExcelUpload;
  * <pre>
  * description :
  *
- * packageName : kr.xit.ens.cmm.service
+ * packageName : kr.xit.biz.cmm.service
  * fileName    : ICmmEnsFileService
  * author      : limju
  * date        : 2023-09-05
diff --git a/mens-api/src/main/java/kr/xit/ens/cmm/web/CmmEnsFileController.java b/mens-api/src/main/java/kr/xit/biz/cmm/web/CmmEnsFileController.java
similarity index 92%
rename from mens-api/src/main/java/kr/xit/ens/cmm/web/CmmEnsFileController.java
rename to mens-api/src/main/java/kr/xit/biz/cmm/web/CmmEnsFileController.java
index c20e6ba..f3dad3e 100644
--- a/mens-api/src/main/java/kr/xit/ens/cmm/web/CmmEnsFileController.java
+++ b/mens-api/src/main/java/kr/xit/biz/cmm/web/CmmEnsFileController.java
@@ -1,10 +1,10 @@
-package kr.xit.ens.cmm.web;
+package kr.xit.biz.cmm.web;
 
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import kr.xit.biz.cmm.service.ICmmEnsFileService;
 import kr.xit.biz.ens.model.cmm.CmmEnsFileDTO.FmcExcelUpload;
 import kr.xit.core.model.ApiResponseDTO;
-import kr.xit.ens.cmm.service.ICmmEnsFileService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.MediaType;
@@ -17,7 +17,7 @@ import org.springframework.web.bind.annotation.RestController;
  * <pre>
  * description : 전자고지 연계 파일 관련 처리
  *
- * packageName : kr.xit.ens.cmm.web
+ * packageName : kr.xit.biz.cmm.web
  * fileName    : CmmFileMgtController
  * author      : limju
  * date        : 2023-09-04
@@ -32,7 +32,7 @@ import org.springframework.web.bind.annotation.RestController;
 @Tag(name = "CmmEnsFileController", description = "전자고지 연계 파일 관련 처리")
 @RequiredArgsConstructor
 @RestController
-@RequestMapping(value = "/api/ens/cmm")
+@RequestMapping(value = "/api/biz/cmm")
 public class CmmEnsFileController {
 
     private final ICmmEnsFileService service;
diff --git a/mens-api/src/main/java/kr/xit/core/spring/config/SpringDocsApiConfig.java b/mens-api/src/main/java/kr/xit/core/spring/config/SpringDocsApiConfig.java
index 30fefad..dea7f5d 100644
--- a/mens-api/src/main/java/kr/xit/core/spring/config/SpringDocsApiConfig.java
+++ b/mens-api/src/main/java/kr/xit/core/spring/config/SpringDocsApiConfig.java
@@ -37,19 +37,9 @@ public class SpringDocsApiConfig {
     @Bean
     public GroupedOpenApi kakaopayEltrcDoc() {
         return GroupedOpenApi.builder()
-            .group("2. 카카오페이 MyDoc API")
+            .group("2. 문서중계자 API")
             .pathsToMatch(
-                "/api/kakaopay/**"
-            )
-            .build();
-    }
-
-    @Bean
-    public GroupedOpenApi niceCi() {
-        return GroupedOpenApi.builder()
-            .group("3. Nice CI API")
-            .pathsToMatch(
-                "/api/nice/**"
+                "/api/ens/**"
             )
             .build();
     }
@@ -57,9 +47,9 @@ public class SpringDocsApiConfig {
     @Bean
     public GroupedOpenApi bizDoc() {
         return GroupedOpenApi.builder()
-            .group("6. 전자고지 문서 확인 API")
+            .group("6. 전자고지 업무 API")
             .pathsToMatch(
-                "/api/ens/**"
+                "/api/biz/**"
             )
             .build();
     }
diff --git a/mens-core/src/main/java/kr/xit/biz/ens/model/nice/NiceCiDTO.java b/mens-core/src/main/java/kr/xit/biz/ens/model/nice/NiceCiDTO.java
index 31ad5b2..5f93364 100644
--- a/mens-core/src/main/java/kr/xit/biz/ens/model/nice/NiceCiDTO.java
+++ b/mens-core/src/main/java/kr/xit/biz/ens/model/nice/NiceCiDTO.java
@@ -483,6 +483,60 @@ public class NiceCiDTO {
         @Schema(requiredMode = RequiredMode.AUTO, title = "사이트 코드", example = " ")
         private String symkeyStatInfo;
     }
+
+    @Schema(name = "SymkeyRegInfo", description = "대칭키(symmetrickey) 등록 요청시 symkey_reg_info JSON 속성")
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    @SuperBuilder
+    @JsonInclude(Include.NON_NULL)
+    @JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
+    public static class SymkeyRegInfo {
+        @Schema(requiredMode = RequiredMode.REQUIRED, title = "사이트 코드", description = "공개키요청시 수신한 사이트코드", example = "AAA==")
+        @Size(min = 1, max = 16, message = "사이트 코드는 필수 입니다(max:16)")
+        private String siteCode;
+
+        @Schema(requiredMode = RequiredMode.REQUIRED, title = "요청고유번호", description = "이용기관에서 생성한 임의의 값", example = " ")
+        @Size(min = 30, max = 30, message = "요청고유번호는 필수 입니다(max:30)")
+        private String requestNo;
+
+        @Schema(requiredMode = RequiredMode.REQUIRED, title = "암호화키", description = "사용할 암호화키", example = " ")
+        @Size(min = 32, max = 32, message = "사이트 코드는 필수 입니다(max:32)")
+        private String key;
+
+        @Schema(requiredMode = RequiredMode.REQUIRED, title = "iv", description = "inital Vector", example = " ")
+        @Size(min = 16, max = 16, message = "iv는 필수 입니다(max:16)")
+        private String iv;
+
+        @Schema(requiredMode = RequiredMode.REQUIRED, title = "hmac_key", description = "사용할 HMAC KEY", example = " ")
+        @Size(min = 32, max = 32, message = "iv는 필수 입니다(max:16)")
+        private String hmacKey;
+    }
+
+    @Schema(name = "SymkeyStatInfo", description = "대칭키(symmetrickey) 등록 결과 symkey_stat_info JSON 속성")
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    @SuperBuilder
+    @JsonInclude(Include.NON_NULL)
+    @JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
+    public static class SymkeyStatInfo {
+        @Schema(requiredMode = RequiredMode.AUTO, title = "cur_symkey_version", description = "현재 등록 요청한 대칭키 버전", example = " ")
+        @Size(max = 50)
+        private String curSymkeyVersion;
+
+        @Schema(requiredMode = RequiredMode.AUTO, title = "cur_valid_dtim", description = "현재 등록된 대칭키 만료일시 (YYYYMMDDHH24MISS)", example = " ")
+        @Size(max = 14)
+        private String curValidDtim;
+
+        @Schema(requiredMode = RequiredMode.AUTO, title = "bef_symkey_version", description = "이전 등록된 대칭키 버전", example = " ")
+        @Size(max = 50)
+        private String befSymkeyVersion;
+
+        @Schema(requiredMode = RequiredMode.AUTO, title = "bef_valid_dtim", description = "이전 등록된 대칭키 만료일시 (YYYYMMDDHH24MISS)", example = " ")
+        @Size(max = 14)
+        private String befvaliddtim;
+    }
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
@@ -658,7 +712,46 @@ public class NiceCiDTO {
          * 공개키 만료일시
          */
         private String validDtim;
-
+        /**
+         * 현재 대칭키 버전
+         */
+        private String curSymkeyVersion;
+        /**
+         * 현재 대칭키 만료일시
+         */
+        private String curSymkeyValidDtim;
+        /**
+         * 현재 대칭키 key
+         */
+        private String curSymkeyKey;
+        /**
+         * 현재 대칭키 iv
+         */
+        private String curSymkeyiv;
+        /**
+         * 현재 대칭키 hmac_key
+         */
+        private String curSymkeyHmacKey;
+        /**
+         * 이전 대칭키 버전
+         */
+        private String befSymkeyVersion;
+        /**
+         * 이전 대칭키 만료일시
+         */
+        private String befSymkeyValidDtim;
+        /**
+         * 이전 대칭키 key
+         */
+        private String befSymkeyKey;
+        /**
+         * 이전 대칭키 iv
+         */
+        private String befSymkeyIv;
+        /**
+         * 이전 대칭키 hmac_key
+         */
+        private String befSymkeyHmacKey;
 
         /**
          * 공개키 잔여일수
diff --git a/mens-core/src/main/java/kr/xit/core/support/utils/UUIDGenerateUtils.java b/mens-core/src/main/java/kr/xit/core/support/utils/UUIDGenerateUtils.java
new file mode 100644
index 0000000..22b0553
--- /dev/null
+++ b/mens-core/src/main/java/kr/xit/core/support/utils/UUIDGenerateUtils.java
@@ -0,0 +1,31 @@
+package kr.xit.core.support.utils;
+
+import java.nio.ByteBuffer;
+import java.util.Random;
+import java.util.UUID;
+
+public class UUIDGenerateUtils {
+
+    public static String generateLengthUuid(int length) {
+        String allChars = UUID.randomUUID().toString().replace("-", "");
+        Random random = new Random();
+        char[] otp = new char[length];
+        for (int i = 0; i < length; i++) {
+            otp[i] = allChars.charAt(random.nextInt(allChars.length()));
+        }
+        return String.valueOf(otp);
+    }
+
+    public static String generateLengthUuid2(int wordLength) {
+        Random r = new Random();
+
+        StringBuilder sb = new StringBuilder(wordLength);
+        for (int i = 0; i < wordLength; i++) {
+            char tmp = (char) ('a' + r.nextInt('z' - 'a'));
+            sb.append(tmp);
+
+        }
+        return sb.toString();
+
+    }
+}