diff --git a/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SEED_CBC.java b/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SEED_CBC.java
index 90b1ceb..7e0da88 100644
--- a/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SEED_CBC.java
+++ b/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SEED_CBC.java
@@ -398,7 +398,9 @@ public class KISA_SEED_CBC {
 		K = pInfo.seed_key.key_data;										// Pointer of round keys
 		pInfo.encrypt = enc.value;											// 
 		Common.memcpy(pInfo.ivec, pbszIV, 16, ENDIAN);
-		pInfo.last_block_flag = pInfo.buffer_length = 0;
+		pInfo.buffer_length = 0;
+//		pInfo.last_block_flag = pInfo.buffer_length = 0;
+		pInfo.last_block_flag = pInfo.buffer_length;
 
 		// Set up input values for Key Schedule
 		ABCD[ABCD_A] = Common.byte_to_int(pbszUserKey, 0*4, ENDIAN);
@@ -736,11 +738,23 @@ public class KISA_SEED_CBC {
 
 		public KISA_SEED_INFO() {
 			encrypt = 0;
-			ivec[0] = ivec[1] = ivec[2] = ivec[3] = 0;
+			ivec[3] = 0;
+			ivec[2] = ivec[3];
+			ivec[1] = ivec[2];
+			ivec[0] = ivec[1];
+//			ivec[0] = ivec[1] = ivec[2] = ivec[3] = 0;
 			seed_key.init();
-			cbc_buffer[0] = cbc_buffer[1] = cbc_buffer[2] = cbc_buffer[3] = 0;
+			cbc_buffer[3] = 0;
+			cbc_buffer[2] = cbc_buffer[3];
+			cbc_buffer[1] = cbc_buffer[2];
+			cbc_buffer[0] = cbc_buffer[1];
+//			cbc_buffer[0] = cbc_buffer[1] = cbc_buffer[2] = cbc_buffer[3] = 0;
 			buffer_length = 0;
-			cbc_last_block[0] = cbc_last_block[1] = cbc_last_block[2] = cbc_last_block[3] = 0;
+			cbc_last_block[3] = 0;
+			cbc_last_block[2] = cbc_last_block[3];
+			cbc_last_block[1] = cbc_last_block[2];
+			cbc_last_block[0] = cbc_last_block[1];
+//			cbc_last_block[0] = cbc_last_block[1] = cbc_last_block[2] = cbc_last_block[3] = 0;
 			last_block_flag = 0;
 		}
 
@@ -940,7 +954,9 @@ public class KISA_SEED_CBC {
 		K = pInfo.seed_key.key_data;										// Pointer of round keys
 		pInfo.encrypt = enc.value;											// 
 		Common.memcpy(pInfo.ivec, pbszIV, 16, ENDIAN);
-		pInfo.last_block_flag = pInfo.buffer_length = 0;
+		pInfo.buffer_length = 0;
+//		pInfo.last_block_flag = pInfo.buffer_length = 0;
+		pInfo.last_block_flag = pInfo.buffer_length;
 
 		// Set up input values for Key Schedule
 		ABCD[ABCD_A] = Common.byte_to_int(pbszUserKey, 0*4, ENDIAN);
diff --git a/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SHA256.java b/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SHA256.java
index dc5c27f..0b3f140 100644
--- a/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SHA256.java
+++ b/src/main/java/com/palnet/comn/encrptn/kisa/KISA_SHA256.java
@@ -136,7 +136,9 @@ public class KISA_SHA256 {
 		Info.uChainVar[6] = 0x1f83d9ab;
 		Info.uChainVar[7] = 0x5be0cd19;
 
-		Info.uHighLength = Info.uLowLength = 0;
+		Info.uLowLength = 0;
+		Info.uHighLength = Info.uLowLength;
+//		Info.uHighLength = Info.uLowLength = 0;
 	}
 
 	/**
@@ -148,7 +150,8 @@ public class KISA_SHA256 {
 	public static void SHA256_Process( SHA256_INFO Info, byte[] pszMessage, int uDataLen ) {
 		int pszMessage_offset;
 
-		if((Info.uLowLength += (uDataLen << 3)) < 0) {
+		Info.uLowLength += (uDataLen <<3);
+		if(Info.uLowLength < 0) {
 			Info.uHighLength++;
 		}
 
diff --git a/src/main/java/com/palnet/server/command/TempUtils.java b/src/main/java/com/palnet/server/command/TempUtils.java
index c96f3a1..4cf0889 100644
--- a/src/main/java/com/palnet/server/command/TempUtils.java
+++ b/src/main/java/com/palnet/server/command/TempUtils.java
@@ -29,31 +29,41 @@ public class TempUtils{
                 // 일산화탄소
                 prev = SensorModel.preCo;
                 SensorModel.preCo = SensorModel.co;
-                result = SensorModel.co = gradualDoubleData(SensorModel.co, prev, 0.1, 0.0, 20.0);
+                SensorModel.co = gradualDoubleData(SensorModel.co, prev, 0.1, 0.0, 20.0);
+//                result = SensorModel.co = gradualDoubleData(SensorModel.co, prev, 0.1, 0.0, 20.0);
+                result = SensorModel.co;
                 break;
             case "so2":
                 // 아황산가스
                 prev = SensorModel.preSo2;
                 SensorModel.preSo2 = SensorModel.so2;
-                result = SensorModel.so2 = gradualDoubleData(SensorModel.so2, prev, 0.005, 0.0, 0.2);
+                SensorModel.so2 = gradualDoubleData(SensorModel.so2, prev, 0.005, 0.0, 0.2);
+//                result = SensorModel.so2 = gradualDoubleData(SensorModel.so2, prev, 0.005, 0.0, 0.2);
+                result = SensorModel.so2;
                 break;
             case "no2":
                 // 이산화질소
                 prev = SensorModel.preNo2;
                 SensorModel.preNo2 = SensorModel.no2;
-                result = SensorModel.no2 = gradualDoubleData(SensorModel.no2, prev, 0.003, 0.0, 0.3);
+                SensorModel.no2 = gradualDoubleData(SensorModel.no2, prev, 0.003, 0.0, 0.3);
+//                result = SensorModel.no2 = gradualDoubleData(SensorModel.no2, prev, 0.003, 0.0, 0.3);
+                result = SensorModel.no2;
                 break;
             case "o3":
                 // 오존
                 prev = SensorModel.preO3;
                 SensorModel.preO3 = SensorModel.o3;
-                result = SensorModel.o3 = gradualDoubleData(SensorModel.o3, prev, 1.0, 0.0, 175.0);
+                SensorModel.o3 = gradualDoubleData(SensorModel.o3, prev, 1.0, 0.0, 175.0);
+//                result = SensorModel.o3 = gradualDoubleData(SensorModel.o3, prev, 1.0, 0.0, 175.0);
+                result = SensorModel.o3;
                 break;
             case "dust":
                 // 미세먼지
                 prev = SensorModel.preDust;
                 SensorModel.preDust = SensorModel.dust;
-                result = SensorModel.dust = gradualDoubleData(SensorModel.dust, prev, 1.1, 0.0, 175.0);
+                SensorModel.dust = gradualDoubleData(SensorModel.dust, prev, 1.1, 0.0, 175.0);
+//                result = SensorModel.dust = gradualDoubleData(SensorModel.dust, prev, 1.1, 0.0, 175.0);
+                result = SensorModel.dust;
                 break;
             default:
                 result = (Math.round((new Random()).nextDouble() * 100000)) / 100.0;