diff --git a/mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsCacheService.java b/mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsCacheService.java
index e1289f4..db3d8d9 100644
--- a/mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsCacheService.java
+++ b/mens-api/src/main/java/kr/xit/biz/cmm/service/CmmEnsCacheService.java
@@ -45,8 +45,9 @@ public class CmmEnsCacheService implements ICmmEnsCacheService {
 
     /**
      * Nice CI 인증 관련 정보 cache load
-     * @param dto NiceCiRequestDTO
-     * @return CrtfInfo
+     * @param signguCode String
+     * @param ffnlgCode String
+     * @return NiceCiInfo
      */
     @Transactional(readOnly = true)
     @Cacheable(cacheNames = "niceCiInfo", keyGenerator = "simpleKeyGenerator")
@@ -56,8 +57,8 @@ public class CmmEnsCacheService implements ICmmEnsCacheService {
 
     /**
      * Nice CI 인증 관련 정보 cache remove
-     * @param signguCode
-     * @param ffnlgCode
+     * @param signguCode String
+     * @param ffnlgCode String
      */
     @Transactional(readOnly = true)
     @CacheEvict(cacheNames = "niceCiInfo", keyGenerator = "simpleKeyGenerator")
@@ -65,9 +66,8 @@ public class CmmEnsCacheService implements ICmmEnsCacheService {
     }
 
     /**
-     * KT / KAKAO 인증 관련 정보 cache load
-     * @param signguCode
-     * @param ffnlgCode
+     * KT / KAKAO / postplus / epost 문서중개자 관련 정보 cache load
+     * @param dto CmmEnsRequestDTO
      * @return CmmEnsRlaybsnmDTO
      */
     @Transactional(readOnly = true)
@@ -77,9 +77,8 @@ public class CmmEnsCacheService implements ICmmEnsCacheService {
     }
 
     /**
-     * KT / KAKAO 인증 관련 정보 cache remove
-     * @param signguCode
-     * @param ffnlgCode
+     * KT / KAKAO / postplus / epost 문서중개자 관련 정보 cache remove
+     * @param dto CmmEnsRequestDTO
      */
     @Transactional(readOnly = true)
     @CacheEvict(cacheNames = "rlaybsnmInfo", keyGenerator = "simpleKeyGenerator")
@@ -95,7 +94,7 @@ public class CmmEnsCacheService implements ICmmEnsCacheService {
                 Cache cache = ((CaffeineCache) cacheManager.getCache(cacheName)).getNativeCache();
 
                 for(Object key : cache.asMap().keySet()) {
-                    Object value = cache.getIfPresent(key);
+                    //Object value = cache.getIfPresent(key);
                     log.info("key: {}", key);
                     //log.info("key: {} - value: {}", key, value.toString());
                 }
diff --git a/mens-api/src/main/java/kr/xit/biz/nice/service/BizNiceCiService.java b/mens-api/src/main/java/kr/xit/biz/nice/service/BizNiceCiService.java
index 699cfc5..3496f7f 100644
--- a/mens-api/src/main/java/kr/xit/biz/nice/service/BizNiceCiService.java
+++ b/mens-api/src/main/java/kr/xit/biz/nice/service/BizNiceCiService.java
@@ -3,26 +3,21 @@ package kr.xit.biz.nice.service;
 import egovframework.com.cmm.EgovMessageSource;
 import javax.transaction.Transactional;
 import kr.xit.biz.cmm.service.CmmEnsCacheService;
+import kr.xit.biz.common.ApiConstants.NiceCiWrkDiv;
 import kr.xit.biz.common.ApiConstants.SignguCode;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResEncData;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiInfo;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceTokenResponse;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResponse;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.ResponseDataHeader;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.SymkeyRegInfo;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.SymkeyStatInfo;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyResDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyResponse;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenResDataBody;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenRevokeResDataBody;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenRevokeResponse;
 import kr.xit.biz.nice.mapper.IBizNiceCiMapper;
 import kr.xit.core.exception.BizRuntimeException;
-import kr.xit.core.support.utils.JsonUtils;
-import kr.xit.ens.cmm.CmmEnsUtils;
 import kr.xit.ens.nice.cmm.CmmNiceCiUtils;
 import kr.xit.ens.nice.service.INiceCiService;
 import lombok.RequiredArgsConstructor;
@@ -58,7 +53,6 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
     //--------------------------------------------------------------------------------
     // 기관용 Token
     //--------------------------------------------------------------------------------
-
     /**
      * <pre>
      * NICE 토큰 발급 요청
@@ -76,8 +70,8 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
         final ResponseDataHeader dataHeader = tokenResponse.getDataHeader();
 
         if(dataHeader.getGwRsltCd().equals("1200")){
-            TokenResDataBody dataBody = tokenResponse.getDataBody();
-            NiceCiInfo niceDTO = NiceCiInfo.builder()
+            final TokenResDataBody dataBody = tokenResponse.getDataBody();
+            final NiceCiInfo niceDTO = NiceCiInfo.builder()
                 .signguCode(reqDTO.getSignguCode())
                 .ffnlgCode(reqDTO.getFfnlgCode())
                 .accessToken(dataBody.getAccessToken())
@@ -91,7 +85,7 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
             // 공개키 정보 캐쉬 삭제
             cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
 
-            updateNiceCerfInfoSync(niceDTO, reqDTO);
+            updateNiceCerfInfoSync(niceDTO, reqDTO, NiceCiWrkDiv.TOKEN);
             //----------------------------------------------------------------------------------
 
         }
@@ -112,14 +106,14 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
     @Transactional
     @Override
     public TokenRevokeResponse revokeToken(final NiceCiRequest reqDTO){
-        TokenRevokeResponse resDTO = niceCiService.revokeToken(reqDTO);
-
+        final TokenRevokeResponse resDTO = niceCiService.revokeToken(reqDTO);
         final ResponseDataHeader dataHeader = resDTO.getDataHeader();
+
         if(dataHeader.getGwRsltCd().equals("1200")){
-            TokenRevokeResDataBody dataBody = resDTO.getDataBody();
+            final TokenRevokeResDataBody dataBody = resDTO.getDataBody();
 
             if(dataBody.isResult()){
-                NiceCiInfo niceDTO = NiceCiInfo.builder()
+                final NiceCiInfo niceDTO = NiceCiInfo.builder()
                     .signguCode(reqDTO.getSignguCode())
                     .ffnlgCode(reqDTO.getFfnlgCode())
                     .accessToken(null)
@@ -131,7 +125,7 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
                 // 공개키 정보 캐쉬 삭제
                 cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
 
-                updateNiceCerfInfoSync(niceDTO, reqDTO);
+                updateNiceCerfInfoSync(niceDTO, reqDTO, NiceCiWrkDiv.TOKEN);
             }else{
                 throw BizRuntimeException.create("토큰을 폐기하지 못했습니다.");
             }
@@ -139,13 +133,10 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
         return resDTO;
     }
     //--------------------------------------------------------------------------------
-    // 기관용 Token
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
-
     /**
      * <pre>
      * 공개키 요청
@@ -157,59 +148,30 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
      */
     @Transactional
     @Override
-    public PublickeyResponse requestPublickey(final NiceCiRequest reqDTO) {
+    public PublickeyResDataBody requestPublickey(final NiceCiRequest reqDTO) {
         final NiceCiInfo niceDTO = CmmNiceCiUtils.getNiceCiInfo(reqDTO);
         if(ObjectUtils.isEmpty(niceDTO.getAccessToken()))   throw BizRuntimeException.create(messageSource.getMessage("fail.api.nice.token.info"));
 
-        final PublickeyResponse pubResDTO = niceCiService.requestPublickey(reqDTO);
-
-        //FIXME::공개키 정보 갱신 - Error code enum 전환
-        final ResponseDataHeader dataHeader = pubResDTO.getDataHeader();
-        final PublickeyResDataBody dataBody = pubResDTO.getDataBody();
+        final PublickeyResDataBody dataBody = niceCiService.requestPublickey(reqDTO);
 
         // 3. 공개키 정보 update
-        if(ObjectUtils.isNotEmpty(dataBody)
-            && dataHeader.getGwRsltCd().equals("1200")
-            && dataBody.getRspCd().equals("P000")
-            && dataBody.getResultCd().equals("0000")){
-            niceDTO.setSiteCode(dataBody.getSiteCode());
-            niceDTO.setKeyVersion(dataBody.getKeyVersion());
-            niceDTO.setPublicKey(dataBody.getPublicKey());
-            niceDTO.setValidDtim(dataBody.getValidDtim());
-            niceCiMapper.updateNiceCrtfPublickey(niceDTO);
-            // 공개키 정보 캐쉬 삭제
-            cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
-
-            //FIXME:: 교통시설운영처 또는 장사시설인 경우 sync ----------------------------------------
-            if(SignguCode.TRAFFIC.getCode().equals(niceDTO.getSignguCode())){
-                niceDTO.setSignguCode(SignguCode.FUNERAL.getCode());
-                niceCiMapper.updateNiceCrtfPublickey(niceDTO);
-            }
-
-            if(SignguCode.FUNERAL.getCode().equals(niceDTO.getSignguCode())){
-                niceDTO.setSignguCode(SignguCode.TRAFFIC.getCode());
-                niceCiMapper.updateNiceCrtfPublickey(niceDTO);
-            }
-            // 공개키 정보 캐쉬 삭제
-            cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
-            cacheService.logCache();
-            //------------------------------------------------------------------------------------
+        niceDTO.setSiteCode(dataBody.getSiteCode());
+        niceDTO.setKeyVersion(dataBody.getKeyVersion());
+        niceDTO.setPublicKey(dataBody.getPublicKey());
+        niceDTO.setValidDtim(dataBody.getValidDtim());
+        niceCiMapper.updateNiceCrtfPublickey(niceDTO);
+        // 공개키 정보 캐쉬 삭제
+        cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
 
-            return pubResDTO;
-        }
+        updateNiceCerfInfoSync(niceDTO, reqDTO, NiceCiWrkDiv.PUBLIC_KEY);
 
-        //FIXME::에러처리 방안 설정후 적용 할 것
-        throw BizRuntimeException.create(JsonUtils.toJson(dataHeader));
+        return dataBody;
     }
-
-    //--------------------------------------------------------------------------------
-    // 공개키(Publickey)
     //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
-
     /**
      * <pre>
      * 0. cache call
@@ -221,109 +183,78 @@ public class BizNiceCiService extends EgovAbstractServiceImpl implements IBizNic
      */
     @Transactional
     @Override
-    public SymmetrickeyResponse requestRegSymmetrickey(final NiceCiRequest reqDTO) {
-        final String signguCode = reqDTO.getSignguCode();
-        final String ffnlgCode = reqDTO.getFfnlgCode();
-
-        //FIXME::NICE 연계이후 메소드 교체
+    public SymkeyStatInfo requestRegSymmetrickey(final NiceCiRequest reqDTO) {
         final SymkeyRegInfo symkeyRegInfo = CmmNiceCiUtils.getSymkeyRegInfo();
-        SymmetrickeyResponse symResDTO = niceCiService.requestRegSymmetrickey(reqDTO, symkeyRegInfo);
-
-        final ResponseDataHeader dataHeader = symResDTO.getDataHeader();
-        final SymmetrickeyResDataBody dataBody = symResDTO.getDataBody();
-        if(dataHeader.getGwRsltCd().equals("1200")
-            && dataBody.getRspCd().equals("P000")
-            //FIXME:: "0007" 인 경우 확인 필요 - result_cd 0000, 0007일 경우 나감 (0007: key 중복 오류 (현재 및 직전에 사용한 Key 사용 불가)
-            && dataBody.getResultCd().equals("0000")){
-            SymkeyStatInfo symkeyStatInfo = JsonUtils.toObject(dataBody.getSymkeyStatInfo(), SymkeyStatInfo.class);
-            NiceCiInfo niceDTO = NiceCiInfo.builder()
-                .signguCode(reqDTO.getSignguCode())
-                .ffnlgCode(reqDTO.getFfnlgCode())
-                .build();
-            niceDTO.setBefSymkeyVersion(symkeyStatInfo.getBefSymkeyVersion());
-            niceDTO.setBefSymkeyValidDtim(symkeyStatInfo.getBefValidDtim());
-            niceDTO.setBefSymkeyKey(niceDTO.getCurSymkeyKey());
-            niceDTO.setBefSymkeyIv(niceDTO.getCurSymkeyIv());
-            niceDTO.setBefSymkeyHmacKey(niceDTO.getCurSymkeyHmacKey());
-
-            niceDTO.setCurSymkeyVersion(symkeyStatInfo.getCurSymkeyVersion());
-            niceDTO.setCurSymkeyValidDtim(symkeyStatInfo.getCurValidDtim());
-            niceDTO.setCurSymkeyKey(symkeyRegInfo.getKey());
-            niceDTO.setCurSymkeyIv(symkeyRegInfo.getIv());
-            niceDTO.setCurSymkeyHmacKey(symkeyRegInfo.getHmacKey());
-
-            niceCiMapper.updateNiceCrtfSymkey(niceDTO);
-            // 공개키 정보 캐쉬 삭제
-            cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
-
-            //FIXME:: 교통시설운영처 또는 장사시설인 경우 sync ----------------------------------------
-            if(SignguCode.TRAFFIC.getCode().equals(niceDTO.getSignguCode())){
-                niceDTO.setSignguCode(SignguCode.FUNERAL.getCode());
-                niceCiMapper.updateNiceCrtfSymkey(niceDTO);
-            }
-
-            if(SignguCode.FUNERAL.getCode().equals(niceDTO.getSignguCode())){
-                niceDTO.setSignguCode(SignguCode.TRAFFIC.getCode());
-                niceCiMapper.updateNiceCrtfSymkey(niceDTO);
-
-            }
-            // 공개키 정보 캐쉬 삭제
-            cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
-            cacheService.logCache();
-            //------------------------------------------------------------------------------------
+        final SymkeyStatInfo symkeyStatInfo = niceCiService.requestRegSymmetrickey(reqDTO, symkeyRegInfo);
+        final NiceCiInfo niceDTO = NiceCiInfo.builder()
+            .signguCode(reqDTO.getSignguCode())
+            .ffnlgCode(reqDTO.getFfnlgCode())
+            .build();
+
+        niceDTO.setBefSymkeyVersion(symkeyStatInfo.getBefSymkeyVersion());
+        niceDTO.setBefSymkeyValidDtim(symkeyStatInfo.getBefValidDtim());
+        niceDTO.setBefSymkeyKey(niceDTO.getCurSymkeyKey());
+        niceDTO.setBefSymkeyIv(niceDTO.getCurSymkeyIv());
+        niceDTO.setBefSymkeyHmacKey(niceDTO.getCurSymkeyHmacKey());
+
+        niceDTO.setCurSymkeyVersion(symkeyStatInfo.getCurSymkeyVersion());
+        niceDTO.setCurSymkeyValidDtim(symkeyStatInfo.getCurValidDtim());
+        niceDTO.setCurSymkeyKey(symkeyRegInfo.getKey());
+        niceDTO.setCurSymkeyIv(symkeyRegInfo.getIv());
+        niceDTO.setCurSymkeyHmacKey(symkeyRegInfo.getHmacKey());
+
+        niceCiMapper.updateNiceCrtfSymkey(niceDTO);
+        // 공개키 정보 캐쉬 삭제
+        cacheService.removeNiceCiInfoCache(niceDTO.getSignguCode(), niceDTO.getFfnlgCode());
 
-            return symResDTO;
+        updateNiceCerfInfoSync(niceDTO, reqDTO, NiceCiWrkDiv.SYM_KEY);
 
-        }else{
-            throw BizRuntimeException.create(JsonUtils.toJson(symResDTO));
-        }
+        return symkeyStatInfo;
     }
     //--------------------------------------------------------------------------------
-    // 대칭키 : symmetrickey
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
-    public IpinCiResponse requestCi(final NiceCiRequest reqDTO) {
-        IpinCiResponse ipinCiResponse = niceCiService.requestCi(reqDTO);
-
-        ResponseDataHeader resHeader = ipinCiResponse.getDataHeader();
-        IpinCiResDataBody resBody = ipinCiResponse.getDataBody();
-        String resEncData = resBody.getEncData();
-        //IpinCiResEncData resEncData = JsonUtils.toObject(resBody.getEncData(), IpinCiResEncData.class);
-
-        //FIXME::응답무결성 체크
-        // 응답으로온 intigrety_value와 응답 enc_data를 Hmac한 값을 비교
-        // 무결성체크가 완료되면 데이터를 보낸 대칭키로 복호화하여 데이터를 확인
-        NiceCiInfo niceDTO = CmmNiceCiUtils.getSymkeyNiceCiInfo(reqDTO);
-        String checkHmac = CmmEnsUtils.encodeHmacSha256(niceDTO.getCurSymkeyHmacKey(), resEncData);
-        if(resBody.getIntegrityValue().equals(checkHmac)){
-            String decData = CmmEnsUtils.decodeAesData(resEncData, niceDTO.getCurSymkeyKey(), niceDTO.getCurSymkeyIv());
-            resBody.setEncData(decData);
-        }
-        return ipinCiResponse;
+    public IpinCiResEncData requestCi(final NiceCiRequest reqDTO) {
+        return niceCiService.requestCi(reqDTO);
     }
-
-    //--------------------------------------------------------------------------------
-    // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
 
 
+    //--------------------------------------------------------------------------------
 
-
-
-
-    private void updateNiceCerfInfoSync(final NiceCiInfo niceDTO, final NiceCiRequest reqDTO) {
-        //FIXME:: 교통시설운영처 또는 장사시설인 경우 sync ----------------------------------------
+    /**
+     * <pre>
+     * 교통시설운영처와 승화원의 Nice CI 정보 sync
+     * @param niceDTO NiceCiInfo
+     * @param reqDTO NiceCiRequest
+     * @param wrkDiv NiceCiWrkDiv
+     * </pre>
+     */
+    private void updateNiceCerfInfoSync(final NiceCiInfo niceDTO, final NiceCiRequest reqDTO, final NiceCiWrkDiv wrkDiv) {
+        // 교통시설운영처 또는 장사시설인 경우 sync ----------------------------------------
         if(SignguCode.TRAFFIC.getCode().equals(reqDTO.getSignguCode())){
             niceDTO.setSignguCode(SignguCode.FUNERAL.getCode());
-            niceCiMapper.updateNiceCrtfToken(niceDTO);
         }
 
         if(SignguCode.FUNERAL.getCode().equals(reqDTO.getSignguCode())){
             niceDTO.setSignguCode(SignguCode.TRAFFIC.getCode());
-            niceCiMapper.updateNiceCrtfToken(niceDTO);
+        }
+
+        switch(wrkDiv){
+            case TOKEN:
+                niceCiMapper.updateNiceCrtfToken(niceDTO);
+                break;
+            case PUBLIC_KEY:
+                niceCiMapper.updateNiceCrtfPublickey(niceDTO);
+                break;
+            case SYM_KEY:
+                niceCiMapper.updateNiceCrtfSymkey(niceDTO);
+                break;
+            default:
+                break;
+
         }
 
         // 공개키 정보 캐쉬 삭제
diff --git a/mens-api/src/main/java/kr/xit/biz/nice/service/IBizNiceCiService.java b/mens-api/src/main/java/kr/xit/biz/nice/service/IBizNiceCiService.java
index ee30e27..1e7cd74 100644
--- a/mens-api/src/main/java/kr/xit/biz/nice/service/IBizNiceCiService.java
+++ b/mens-api/src/main/java/kr/xit/biz/nice/service/IBizNiceCiService.java
@@ -1,10 +1,10 @@
 package kr.xit.biz.nice.service;
 
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResEncData;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyResponse;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceTokenResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResDataBody;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.SymkeyStatInfo;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenRevokeResponse;
 
 /**
@@ -35,7 +35,7 @@ public interface IBizNiceCiService {
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
-    PublickeyResponse requestPublickey(final NiceCiRequest reqDTO);
+    PublickeyResDataBody requestPublickey(final NiceCiRequest reqDTO);
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
@@ -43,7 +43,7 @@ public interface IBizNiceCiService {
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
-    SymmetrickeyResponse requestRegSymmetrickey(final NiceCiRequest reqDTO);
+    SymkeyStatInfo requestRegSymmetrickey(final NiceCiRequest reqDTO);
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
@@ -51,7 +51,7 @@ public interface IBizNiceCiService {
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
-    IpinCiResponse requestCi(final NiceCiRequest reqDTO);
+    IpinCiResEncData requestCi(final NiceCiRequest reqDTO);
 
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
diff --git a/mens-api/src/main/java/kr/xit/biz/nice/web/BizNiceCiController.java b/mens-api/src/main/java/kr/xit/biz/nice/web/BizNiceCiController.java
index 5b231fb..d6a7e65 100644
--- a/mens-api/src/main/java/kr/xit/biz/nice/web/BizNiceCiController.java
+++ b/mens-api/src/main/java/kr/xit/biz/nice/web/BizNiceCiController.java
@@ -4,21 +4,13 @@ import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.ExampleObject;
 import io.swagger.v3.oas.annotations.tags.Tag;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.CommonResponseDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResEncData;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResponse;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.ResponseDataHeader;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyResponse;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceTokenResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.ResponseDataHeader;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenRevokeResponse;
 import kr.xit.biz.nice.service.IBizNiceCiService;
 import kr.xit.core.model.ApiResponseDTO;
-import kr.xit.core.support.utils.JsonUtils;
 import lombok.RequiredArgsConstructor;
-import org.apache.commons.lang3.ObjectUtils;
 import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -45,7 +37,6 @@ import org.springframework.web.bind.annotation.RestController;
 @RestController
 @RequestMapping(value = "/api/biz/nice/v1")
 public class BizNiceCiController {
-
     private static final String PARAM1 = """
                         {
                           "signguCode": "88328",
@@ -73,7 +64,7 @@ public class BizNiceCiController {
                     name = "교통시설운영처",
                     value = PARAM1),
                 @ExampleObject(
-                    name = "장사시설",
+                    name = "승화원",
                     value = PARAM2)
         })
     })
@@ -92,7 +83,7 @@ public class BizNiceCiController {
                     name = "교통시설운영처",
                     value = PARAM1),
                 @ExampleObject(
-                    name = "장사시설",
+                    name = "승화원",
                     value = PARAM2)
             })
     })
@@ -103,13 +94,10 @@ public class BizNiceCiController {
         return niceTokenResponse(tokenRevokeResponse.getDataHeader(), tokenRevokeResponse.getDataBody());
     }
     //--------------------------------------------------------------------------------
-    // 기관용 Token
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
-
     /**
      *
      * @param reqDTO
@@ -123,19 +111,16 @@ public class BizNiceCiController {
                     name = "교통시설운영처",
                     value = PARAM1),
                 @ExampleObject(
-                    name = "장사시설",
+                    name = "승화원",
                     value = PARAM2)
             })
     })
     @Operation(summary = "공개키 요청", description = "공개키 요청")
     @PostMapping(value = "/requestPublickey", produces = MediaType.APPLICATION_JSON_VALUE)
     public ApiResponseDTO<?> requestPublickey(@RequestBody final NiceCiRequest reqDTO) {
-        final PublickeyResponse publickeyResponse = service.requestPublickey(reqDTO);
-        return response(publickeyResponse.getDataHeader(), publickeyResponse.getDataBody());
+        return ApiResponseDTO.success(service.requestPublickey(reqDTO));
     }
     //--------------------------------------------------------------------------------
-    // 공개키(Publickey)
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
@@ -148,19 +133,15 @@ public class BizNiceCiController {
                     name = "교통시설운영처",
                     value = PARAM1),
                 @ExampleObject(
-                    name = "장사시설",
+                    name = "승화원",
                     value = PARAM2)
             })
     })
     @Operation(summary = "대칭키(symmetrickey) 등록 요청", description = "대칭키(symmetrickey) 등록 요청")
     @PostMapping(value = "/requestRegSymmetrickey", produces = MediaType.APPLICATION_JSON_VALUE)
     public ApiResponseDTO<?> requestRegSymmetrickey(@RequestBody final NiceCiRequest reqDTO) {
-        final SymmetrickeyResponse symResponse = service.requestRegSymmetrickey(reqDTO);
-        return response(symResponse.getDataHeader(), symResponse.getDataBody());
+        return ApiResponseDTO.success(service.requestRegSymmetrickey(reqDTO));
     }
-
-    //--------------------------------------------------------------------------------
-    // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
@@ -174,33 +155,17 @@ public class BizNiceCiController {
                     name = "교통시설운영처",
                     value = PARAM1),
                 @ExampleObject(
-                    name = "장사시설",
+                    name = "승화원",
                     value = PARAM2)
             })
     })
     @Operation(summary = "아이핀 CI 요청", description = "아이핀 CI 요청")
     @PostMapping(value = "/requestCi", produces = MediaType.APPLICATION_JSON_VALUE)
     public ApiResponseDTO<?> requestCi(@RequestBody final NiceCiRequest reqDTO) {
-        final IpinCiResponse ipinCiResponse = service.requestCi(reqDTO);
-
-        ResponseDataHeader resHeader = ipinCiResponse.getDataHeader();
-        IpinCiResDataBody resBody = ipinCiResponse.getDataBody();
-        IpinCiResEncData resEncData = JsonUtils.toObject(resBody.getEncData(), IpinCiResEncData.class);
-        if(ObjectUtils.isNotEmpty(resBody) && resHeader.getGwRsltCd().equals("1200") && resBody.getRspCd().equals("P000") && resEncData.getResultCd().equals("0000")) {
-            return ApiResponseDTO.success(resBody);
-        }
-
-        if(ObjectUtils.isNotEmpty(resBody)) {
-            return ApiResponseDTO.error(
-                String.format("%s[%s]", resHeader.getGwRsltCd(), resBody.getRspCd()),
-                String.format("%s[%s]", resHeader.getGwRsltMsg(), resEncData.getResultCd())
-            );
-        }
-        return ApiResponseDTO.error(String.format("%s[%s]", resHeader.getGwRsltCd(), resHeader.getGwRsltMsg()));
+        return ApiResponseDTO.success(service.requestCi(reqDTO));
     }
     //--------------------------------------------------------------------------------
-    // 아이핀 CI 요청
-    //--------------------------------------------------------------------------------
+
 
     //--------------------------------------------------------------------------------
     private  <T> ApiResponseDTO<T> niceTokenResponse(final ResponseDataHeader resHeader, final T t){
@@ -209,19 +174,4 @@ public class BizNiceCiController {
         }
         return ApiResponseDTO.error(resHeader.getGwRsltCd(), resHeader.getGwRsltMsg());
     }
-
-    private  ApiResponseDTO<?> response(final ResponseDataHeader resHeader, final CommonResponseDataBody resBody){
-        if(ObjectUtils.isNotEmpty(resBody) && resHeader.getGwRsltCd().equals("1200") && resBody.getRspCd().equals("P000") && resBody.getResultCd().equals("0000")) {
-            return ApiResponseDTO.success(resBody);
-        }
-
-        if(ObjectUtils.isNotEmpty(resBody)) {
-            return ApiResponseDTO.error(
-                String.format("%s[%s]", resHeader.getGwRsltCd(), resBody.getRspCd()),
-                String.format("%s[%s]", resHeader.getGwRsltMsg(), resBody.getResultCd())
-            );
-        }
-
-        return ApiResponseDTO.error(String.format("%s[%s]", resHeader.getGwRsltCd(), resHeader.getGwRsltMsg()));
-    }
 }
diff --git a/mens-api/src/main/java/kr/xit/ens/nice/cmm/CmmNiceCiUtils.java b/mens-api/src/main/java/kr/xit/ens/nice/cmm/CmmNiceCiUtils.java
index 8767632..5b9f755 100644
--- a/mens-api/src/main/java/kr/xit/ens/nice/cmm/CmmNiceCiUtils.java
+++ b/mens-api/src/main/java/kr/xit/ens/nice/cmm/CmmNiceCiUtils.java
@@ -6,6 +6,8 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
 import kr.xit.biz.cmm.service.ICmmEnsCacheService;
+import kr.xit.biz.common.ApiConstants.NiceCiWrkDiv;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.CommonResponseDataBody;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiInfo;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.ResponseDataHeader;
@@ -22,6 +24,7 @@ import kr.xit.ens.nice.service.INiceCiService;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import org.apache.commons.lang3.ObjectUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.http.HttpHeaders;
 import org.springframework.util.Base64Utils;
 
@@ -145,19 +148,55 @@ public class CmmNiceCiUtils {
         return map;
     }
 
+    public static String getFromResultCd(NiceCiWrkDiv wrkDiv, String resultCd){
+        final String preFix = "err.api.nice";
+
+        return switch(wrkDiv) {
+            case PUBLIC_KEY -> messageSource.getMessage(preFix + ".pubKey." + resultCd);
+            case SYM_KEY -> messageSource.getMessage(preFix + ".symKey." + resultCd);
+            case CI -> messageSource.getMessage(preFix + ".ci." + resultCd);
+            default -> StringUtils.EMPTY;
+        };
+    }
+
     /**
      * <pre>
-     * GW_RSLT_CD : "1200" 성공인 경우 TRAN_ID 체크
-     * -> 요청한 응답 인지 체크, 아니면 오류 처리
-     * @param tranId
-     * @param resHeader
-     * @param t
-     * @return T
-
+     * Nice CI 에러 처리 : 공개키요청|대칭키등록|아이핀CI요청
+     * RW_RSLT_CD - 1200 && rsp_cd - P000 && result_cd - 0000인 경우만 정상 처리
+     * RW_RSLT_CD - 1200 && rsp_cd - P000 && result_cd != 0000 인 경우 해당 업무 에러 메세지 return
+     * -> message-api.properties err.api.nice.[pubKey|symKey|ci].[에러코드] 메세지
+     * @param tranId String
+     * @param resHeader ResponseDataHeader
+     * @param resBody CommonResponseDataBody
      * </pre>
      */
-    public static <T> T checkTranIdAndReturn(final String tranId, final ResponseDataHeader resHeader, T t){
+    public static void checkApiResponse(final String tranId, final ResponseDataHeader resHeader,
+        final CommonResponseDataBody resBody, final NiceCiWrkDiv wrkDiv) {
+
+        // 실패
+        if(!resHeader.getGwRsltCd().equals("1200")) {
+            throw BizRuntimeException.create(resHeader.getGwRsltCd(), resHeader.getGwRsltMsg());
+        }
+
+        // 성공(1200)시 tranId 체크
         if(!tranId.equals(resHeader.getTranId()))   throw BizRuntimeException.create(messageSource.getMessage("fail.api.nice.invalid.tranId"));
-        return t;
+
+        // 실패
+        if(ObjectUtils.isNotEmpty(resBody) && !resBody.getRspCd().equals("P000")) {
+            throw BizRuntimeException.create(
+                String.format("%s[%s]", resHeader.getGwRsltCd(), resBody.getRspCd()),
+                String.format("%s[%s]", resHeader.getGwRsltMsg(), resBody.getRspMsg())
+            );
+        }
+
+        // 실패
+        if(ObjectUtils.isNotEmpty(resBody) && !resBody.getResultCd().equals("0000")) {
+            throw BizRuntimeException.create(
+                String.format("%s[%s-%s]", resHeader.getGwRsltCd(), resBody.getRspCd(),
+                    resBody.getResultCd()),
+                String.format("%s[%s]", resHeader.getGwRsltMsg(),
+                    CmmNiceCiUtils.getFromResultCd(wrkDiv, resBody.getResultCd()))
+            );
+        }
     }
 }
diff --git a/mens-api/src/main/java/kr/xit/ens/nice/service/INiceCiService.java b/mens-api/src/main/java/kr/xit/ens/nice/service/INiceCiService.java
index a6d6eea..6c5b53b 100644
--- a/mens-api/src/main/java/kr/xit/ens/nice/service/INiceCiService.java
+++ b/mens-api/src/main/java/kr/xit/ens/nice/service/INiceCiService.java
@@ -1,11 +1,11 @@
 package kr.xit.ens.nice.service;
 
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResEncData;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceTokenResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResDataBody;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.SymkeyRegInfo;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyResponse;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.SymkeyStatInfo;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenRevokeResponse;
 
 /**
@@ -36,7 +36,7 @@ public interface INiceCiService {
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
-    PublickeyResponse requestPublickey(final NiceCiRequest reqDTO);
+    PublickeyResDataBody requestPublickey(final NiceCiRequest reqDTO);
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
@@ -44,7 +44,7 @@ public interface INiceCiService {
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
-    SymmetrickeyResponse requestRegSymmetrickey(final NiceCiRequest reqDTO, final
+    SymkeyStatInfo requestRegSymmetrickey(final NiceCiRequest reqDTO, final
     SymkeyRegInfo symkeyRegInfo);
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
@@ -53,7 +53,7 @@ public interface INiceCiService {
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
-    IpinCiResponse requestCi(final NiceCiRequest reqDTO);
+    IpinCiResEncData requestCi(final NiceCiRequest reqDTO);
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
diff --git a/mens-api/src/main/java/kr/xit/ens/nice/service/NiceCiService.java b/mens-api/src/main/java/kr/xit/ens/nice/service/NiceCiService.java
index 2e76f97..b7b4344 100644
--- a/mens-api/src/main/java/kr/xit/ens/nice/service/NiceCiService.java
+++ b/mens-api/src/main/java/kr/xit/ens/nice/service/NiceCiService.java
@@ -4,23 +4,8 @@ import egovframework.com.cmm.EgovMessageSource;
 import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiReqDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiReqEncData;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.IpinCiResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiInfo;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceTokenRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceTokenResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyReqDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.PublickeyResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.RequestDataHeader;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymkeyRegInfo;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyReqDataBody;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyRequest;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.SymmetrickeyResponse;
-import kr.xit.biz.ens.model.nice.NiceCiDTO.TokenRevokeResponse;
+import kr.xit.biz.common.ApiConstants.NiceCiWrkDiv;
+import kr.xit.biz.ens.model.nice.NiceCiDTO.*;
 import kr.xit.core.exception.BizRuntimeException;
 import kr.xit.core.spring.annotation.TraceLogging;
 import kr.xit.core.spring.util.ApiWebClientUtil;
@@ -84,7 +69,6 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
     //--------------------------------------------------------------------------------
     // 기관용 Token
     //--------------------------------------------------------------------------------
-
     /**
      *
      * @return TokenResponse
@@ -144,21 +128,17 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
         );
     }
     //--------------------------------------------------------------------------------
-    // 기관용 Token
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
-
     @Override
     @TraceLogging
-    public PublickeyResponse requestPublickey(final NiceCiRequest reqDTO) {
+    public PublickeyResDataBody requestPublickey(final NiceCiRequest reqDTO) {
         final NiceCiInfo niceDTO = CmmNiceCiUtils.getNiceCiInfo(reqDTO);
         if(ObjectUtils.isEmpty(niceDTO.getAccessToken()))   throw BizRuntimeException.create(messageSource.getMessage("fail.api.nice.token.info"));
 
         final String todayDt = DateUtils.getTodayAndNowTime("yyyyMMddHHmmss");
-
         final String tranId = CmmEnsUtils.generateLengthUuid(24);
         final PublickeyRequest pubReqDTO = PublickeyRequest.builder()
             .dataHeader(RequestDataHeader.builder()
@@ -185,18 +165,15 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
             PublickeyResponse.class,
             headerMap
         );
+        CmmNiceCiUtils.checkApiResponse(tranId, pubResDTO.getDataHeader(), pubResDTO.getDataBody(), NiceCiWrkDiv.PUBLIC_KEY);
 
-        return CmmNiceCiUtils.checkTranIdAndReturn(tranId, pubResDTO.getDataHeader(), pubResDTO);
+        return pubResDTO.getDataBody();
     }
-
-    //--------------------------------------------------------------------------------
-    // 공개키(Publickey)
     //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
-
     /**
      * <pre>
      * 0. cache call
@@ -207,7 +184,7 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
      * </pre>
      */
     @Override
-    public SymmetrickeyResponse requestRegSymmetrickey(final NiceCiRequest reqDTO, final SymkeyRegInfo symkeyRegInfo) {
+    public SymkeyStatInfo requestRegSymmetrickey(final NiceCiRequest reqDTO, final SymkeyRegInfo symkeyRegInfo) {
         final NiceCiInfo niceDTO = CmmNiceCiUtils.getPublickeyNiceCiInfo(reqDTO);
         // siteCode set
         symkeyRegInfo.setSiteCode(niceDTO.getSiteCode());
@@ -241,8 +218,10 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
             SymmetrickeyResponse.class,
             headerMap
         );
+        SymmetrickeyResDataBody dataBody = symResDTO.getDataBody();
+        CmmNiceCiUtils.checkApiResponse(tranId, symResDTO.getDataHeader(), dataBody, NiceCiWrkDiv.SYM_KEY);
 
-        return CmmNiceCiUtils.checkTranIdAndReturn(tranId, symResDTO.getDataHeader(), symResDTO);
+        return JsonUtils.toObject(dataBody.getSymkeyStatInfo(), SymkeyStatInfo.class);
     }
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
@@ -251,9 +230,9 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
-    public IpinCiResponse requestCi(final NiceCiRequest reqDTO) {
-        NiceCiInfo niceDTO = CmmNiceCiUtils.getSymkeyNiceCiInfo(reqDTO);
-        IpinCiReqEncData encDataDTO = IpinCiReqEncData.builder()
+    public IpinCiResEncData requestCi(final NiceCiRequest reqDTO) {
+        final NiceCiInfo niceDTO = CmmNiceCiUtils.getSymkeyNiceCiInfo(reqDTO);
+        final IpinCiReqEncData encDataDTO = IpinCiReqEncData.builder()
             .siteCode(niceDTO.getSiteCode())
             //.infoReqType()  //default: 1-CI제공
             .juminId(reqDTO.getJuminId())
@@ -266,7 +245,6 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
         final String tranId = CmmEnsUtils.generateLengthUuid(24);
         final String jsonEncData = CmmEnsUtils.encodeAesData(niceDTO.getCurSymkeyKey(), niceDTO.getCurSymkeyIv(), JsonUtils.toJson(encDataDTO));
         final String integrityValue = CmmEnsUtils.encodeHmacSha256(niceDTO.getCurSymkeyHmacKey(), jsonEncData);
-
         final IpinCiRequest ipinCiRequest = IpinCiRequest.builder()
             .dataHeader(RequestDataHeader.builder()
                 .cntyCd(CNTY_CD)
@@ -286,12 +264,10 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
             String.format("%s %s",
                 AUTH_TYPE_BASIC,
                 Base64Utils.encodeToString(
-                    Base64Utils.encode(
-                        String.format(
+                    String.format(
                             "%s:%s",
                             niceDTO.getClientId(),
                             niceDTO.getClientSecret()).getBytes(StandardCharsets.UTF_8)
-                    )
                 )
             )
         );
@@ -305,10 +281,19 @@ public class NiceCiService extends EgovAbstractServiceImpl implements INiceCiSer
             headerMap
         );
 
-        return CmmNiceCiUtils.checkTranIdAndReturn(tranId, ipinCiResponse.getDataHeader(), ipinCiResponse);
+        final IpinCiResDataBody dataBody = ipinCiResponse.getDataBody();
+        CmmNiceCiUtils.checkApiResponse(tranId, ipinCiResponse.getDataHeader(), ipinCiResponse.getDataBody(), NiceCiWrkDiv.CI);
+
+        final String encData = dataBody.getEncData();
+        final String resIntegrityValue = dataBody.getIntegrityValue();
+        final String checkData = CmmEnsUtils.encodeHmacSha256(niceDTO.getCurSymkeyHmacKey(), encData);
+        if(resIntegrityValue.equals(checkData)){
+            final String decStr = CmmEnsUtils.decodeAesData(encData, niceDTO.getCurSymkeyKey(), niceDTO.getCurSymkeyIv());
+            dataBody.setEncData(decStr);
+
+            return JsonUtils.toObject(decStr, IpinCiResEncData.class);
+        }
+        throw BizRuntimeException.create("CI 변환 응답 데이터에 오류가 있습니다(무결성 체크 오류)");
     }
     //--------------------------------------------------------------------------------
-    // 아이핀 CI 요청
-    //--------------------------------------------------------------------------------
-
 }
diff --git a/mens-api/src/main/java/kr/xit/ens/nice/web/NiceCiController.java b/mens-api/src/main/java/kr/xit/ens/nice/web/NiceCiController.java
index 9edcc2e..8db81b8 100644
--- a/mens-api/src/main/java/kr/xit/ens/nice/web/NiceCiController.java
+++ b/mens-api/src/main/java/kr/xit/ens/nice/web/NiceCiController.java
@@ -1,6 +1,8 @@
 package kr.xit.ens.nice.web;
 
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.ExampleObject;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import kr.xit.biz.ens.model.nice.NiceCiDTO.NiceCiRequest;
 import kr.xit.core.model.ApiResponseDTO;
@@ -33,6 +35,21 @@ import org.springframework.web.bind.annotation.RestController;
 @RestController
 @RequestMapping(value = "/api/ens/nice/v1")
 public class NiceCiController {
+    private static final String PARAM1 = """
+                        {
+                          "signguCode": "88328",
+                          "ffnlgCode": "11",
+                          "juminId": "9901011263512"
+                        }
+                    """;
+    private static final String PARAM2 = """
+                        {
+                          "signguCode": "88316",
+                          "ffnlgCode": "11",
+                          "juminId": "9901011263512"
+                        }
+                    """;
+
     private final INiceCiService service;
 
     //--------------------------------------------------------------------------------
@@ -50,13 +67,10 @@ public class NiceCiController {
         return ApiResponseDTO.success(service.revokeToken(reqDTO));
     }
     //--------------------------------------------------------------------------------
-    // 기관용 Token
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 공개키(Publickey)
     //--------------------------------------------------------------------------------
-
     /**
      *
      * @return
@@ -67,8 +81,6 @@ public class NiceCiController {
         return ApiResponseDTO.success(service.requestPublickey(reqDTO));
     }
     //--------------------------------------------------------------------------------
-    // 공개키(Publickey)
-    //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 대칭키 : symmetrickey
@@ -78,20 +90,27 @@ public class NiceCiController {
     public ApiResponseDTO<?> requestRegSymmetrickey(@RequestBody final NiceCiRequest reqDTO) {
         return ApiResponseDTO.success(service.requestRegSymmetrickey(reqDTO, CmmNiceCiUtils.getSymkeyRegInfo()));
     }
-
-    //--------------------------------------------------------------------------------
-    // 대칭키 : symmetrickey
     //--------------------------------------------------------------------------------
 
     //--------------------------------------------------------------------------------
     // 아이핀 CI 요청
     //--------------------------------------------------------------------------------
+    @io.swagger.v3.oas.annotations.parameters.RequestBody(required = true, content = {
+        @Content(
+            mediaType = "application/json",
+            examples = {
+                @ExampleObject(
+                    name = "교통시설운영처",
+                    value = PARAM1),
+                @ExampleObject(
+                    name = "승화원",
+                    value = PARAM2)
+            })
+    })
     @Operation(summary = "아이핀 CI 요청", description = "아이핀 CI 요청")
     @PostMapping(value = "/requestCi", produces = MediaType.APPLICATION_JSON_VALUE)
     public ApiResponseDTO<?> requestCi(@RequestBody final NiceCiRequest reqDTO) {
         return ApiResponseDTO.success(service.requestCi(reqDTO));
     }
     //--------------------------------------------------------------------------------
-    // 아이핀 CI 요청
-    //--------------------------------------------------------------------------------
 }
diff --git a/mens-api/src/main/resources/egovframework/messages/message-api.properties b/mens-api/src/main/resources/egovframework/messages/message-api.properties
index 18d1e52..1294452 100644
--- a/mens-api/src/main/resources/egovframework/messages/message-api.properties
+++ b/mens-api/src/main/resources/egovframework/messages/message-api.properties
@@ -8,3 +8,32 @@ fail.api.nice.invalid.tranId=NICE \uC778\uC99D \uC694\uCCAD\uC5D0 \uC2E4\uD328\u
 
 fail.api.rlaybsnm.info=\uBB38\uC11C\uC911\uACC4\uC790 \uC778\uC99D \uC815\uBCF4\uB97C \uCC3E\uC744 \uC218 \uC5C6\uC2B5\uB2C8\uB2E4.
 fail.api.kt.token.request=KT \uD1A0\uD070 \uC694\uCCAD\uC5D0 \uC2E4\uD328\uD588\uC2B5\uB2C8\uB2E4.
+
+err.api.nice.pubKey.0000=\uACF5\uAC1C\uD0A4\uBC1C\uAE09
+err.api.nice.pubKey.0001=\uD544\uC218 \uC785\uB825\uAC12 \uC624\uB958
+err.api.nice.pubKey.0003=\uACF5\uAC1C\uD0A4 \uBC1C\uAE09 \uB300\uC0C1 \uD68C\uC6D0\uC0AC \uC544\uB2D8
+err.api.nice.pubKey.0099=\uAE30\uD0C0 \uC624\uB958
+
+err.api.nice.symKey.0000=\uB300\uCE6D\uD0A4 \uBC1C\uAE09
+err.api.nice.symKey.0001=\uACF5\uAC1C\uD0A4 \uAE30\uAC04 \uB9CC\uB8CC
+err.api.nice.symKey.0002=\uACF5\uAC1C\uD0A4\uB97C \uCC3E\uC744 \uC218 \uC5C6\uC74C
+err.api.nice.symKey.0003=\uACF5\uAC1C\uD0A4\uB97C \uBC1C\uAE09\uD55C \uD68C\uC6D0\uC0AC \uC544\uB2D8
+err.api.nice.symKey.0004=\uBCF5\uD638\uD654 \uC624\uB958
+err.api.nice.symKey.0005=\uD544\uC218 \uC785\uB825\uAC12 \uC624\uB958(key_version, key_info \uB0B4 \uD544\uC218\uAC12 \uD655\uC778)
+err.api.nice.symKey.0006=\uB300\uCE6D\uD0A4 \uB4F1\uB85D \uAC00\uB2A5 \uD68C\uC6D0\uC0AC \uC544\uB2D8
+err.api.nice.symKey.0007=key \uC911\uBCF5 \uC624\uB958 (\uD604\uC7AC \uBC0F \uC9C1\uC804\uC5D0 \uC0AC\uC6A9\uD55C key \uC0AC\uC6A9 \uBD88\uAC00)
+err.api.nice.symKey.0008=\uC694\uCCAD \uC0AC\uC774\uD2B8 \uCF54\uB4DC\uC640 \uACF5\uAC1C\uD0A4 \uBC1C\uAE09 \uC0AC\uC774\uD2B8 \uCF54\uB4DC \uB2E4\uB984
+err.api.nice.symKey.0099=\uAE30\uD0C0 \uC624\uB958
+
+err.api.nice.ci.0000=\uCC98\uB9AC\uC644\uB8CC
+err.api.nice.ci.0001=\uB300\uCE6D\uD0A4 \uAE30\uAC04 \uB9CC\uB8CC
+err.api.nice.ci.0002=\uB300\uCE6D\uD0A4\uB97C \uCC3E\uC744 \uC218 \uC5C6\uC74C
+err.api.nice.ci.0003=\uB300\uCE6D\uD0A4\uB97C \uBC1C\uAE09\uD55C \uD68C\uC6D0\uC0AC \uC544\uB2D8
+err.api.nice.ci.0004=\uBCF5\uD638\uD654 \uC624\uB958
+err.api.nice.ci.0005=\uD544\uC218 \uC785\uB825\uAC12 \uC624\uB958(integrity_value, enc_data \uB0B4 \uD544\uC218\uAC12 \uD655\uC778)
+err.api.nice.ci.0006=\uB370\uC774\uD130 \uBB34\uACB0\uC131 \uC624\uB958 (hmac\uAC12 \uBD88\uC77C\uCE58)
+err.api.nice.ci.0007=\uC815\uBCF4\uC694\uCCAD\uC720\uD615 \uC785\uB825\uAC12 \uC624\uB958 (info_req_type\uC774 1 \uC544\uB2D8)
+err.api.nice.ci.0008=\uC8FC\uBBFC\uBC88\uD638 \uC720\uD6A8\uC131 \uC624\uB958 (\uC0DD\uB144\uC6D4\uC77C \uC720\uD6A8\uC131 \uBC0F \uC22B\uC790 \uC544\uB2D8)
+err.api.nice.ci.0009=\uAC70\uB798\uC694\uCCAD\uC2DC\uAC04 \uD3EC\uBA67\uC624\uB958 (req_dtim \uC790\uB9BF\uC218 \uBC0F \uC22B\uC790 \uC544\uB2D8)
+err.api.nice.ci.0099=\uAE30\uD0C0 \uC624\uB958
+
diff --git a/mens-core/src/main/java/kr/xit/biz/common/ApiConstants.java b/mens-core/src/main/java/kr/xit/biz/common/ApiConstants.java
index 47fe69e..79a3a77 100644
--- a/mens-core/src/main/java/kr/xit/biz/common/ApiConstants.java
+++ b/mens-core/src/main/java/kr/xit/biz/common/ApiConstants.java
@@ -1,5 +1,7 @@
 package kr.xit.biz.common;
 
+import lombok.Getter;
+
 /**
  * <pre>
  * description :
@@ -29,6 +31,7 @@ public class ApiConstants {
      * REPORT : 문서확인 - 리포트
      * </pre>
      */
+    @Getter
     public enum Categories {
         DEFAULT("Default")
         , BILL("BILL")
@@ -44,9 +47,6 @@ public class ApiConstants {
             this.code = code;
         }
 
-        public String getCode() {
-            return this.code;
-        }
     }
 
     /**
@@ -72,6 +72,7 @@ public class ApiConstants {
      *  </pre>
      * 카카오페이 전자문서 발송 요청 에러 코드
      */
+    @Getter
     public enum Error {
         INVALID_VALUE("INVALID_VALUE")
         , UNIDENTIFIED_USER("UNIDENTIFIED_USER")
@@ -87,15 +88,13 @@ public class ApiConstants {
             this.code = code;
         }
 
-        public String getCode() {
-            return this.code;
-        }
     }
 
     /**
      * 카카오페이 문서 상태
      * SENT(송신) > RECEIVED(수신) > READ(열람)/EXPIRED(미열람자료의 기한만료)
      */
+    @Getter
     public enum DocBoxStatus {
         SENT("SENT")
         , RECEIVED("RECEIVED")
@@ -109,14 +108,12 @@ public class ApiConstants {
             this.code = code;
         }
 
-        public String getCode() {
-            return this.code;
-        }
     }
 
     /**
      * 발송처리상태 : ENS003
      */
+    @Getter
     public enum SndngProcessStatus {
         ACCEPT("accept"),
         ACCEPT_OK("accept-ok"),
@@ -141,14 +138,12 @@ public class ApiConstants {
             this.code = code;
         }
 
-        public String getCode() {
-            return this.code;
-        }
     }
 
     /**
      * 발송구분코드
      */
+    @Getter
     public enum SndngSeCode {
         SMS("SMS"),
         KAKAO_MY_DOC("KKO-MY-DOC"),
@@ -161,14 +156,12 @@ public class ApiConstants {
             this.code = code;
         }
 
-        public String getCode() {
-            return this.code;
-        }
     }
 
     /**
      * SignguCode
      */
+    @Getter
     public enum SignguCode {
         /**
          * 교통시설운영처
@@ -186,8 +179,12 @@ public class ApiConstants {
             this.code = code;
         }
 
-        public String getCode() {
-            return this.code;
-        }
+    }
+
+    public enum NiceCiWrkDiv {
+        TOKEN,
+        PUBLIC_KEY,
+        SYM_KEY,
+        CI
     }
 }