diff --git a/src/main/java/com/palnet/server/encrptn/kisa/KISA_SEED_CBC.java b/src/main/java/com/palnet/server/encrptn/kisa/KISA_SEED_CBC.java
index 7faad63..7c6045f 100644
--- a/src/main/java/com/palnet/server/encrptn/kisa/KISA_SEED_CBC.java
+++ b/src/main/java/com/palnet/server/encrptn/kisa/KISA_SEED_CBC.java
@@ -849,12 +849,18 @@ public class KISA_SEED_CBC {
 			if(ENDIAN == BIG_ENDIAN) {
 				int shift_value = (3-b_offset%4)*8;
 				int mask_value =  0x0ff << shift_value;
-				int value = (src[b_offset/4] & mask_value) >> shift_value;
+				int mask_value2 = src[b_offset/4];
+				int value2 = mask_value2 & mask_value;
+				int value = value2 >> shift_value;
+//				int value = (src[b_offset/4] & mask_value) >> shift_value;
 				return (byte)value;
 			} else {
 				int shift_value = (b_offset%4)*8;
 				int mask_value =  0x0ff << shift_value;
-				int value = (src[b_offset/4] & mask_value) >> shift_value;
+				int mask_value2 = src[b_offset/4];
+				int value2 = mask_value2 & mask_value;
+				int value = value2 >> shift_value;
+//				int value = (src[b_offset/4] & mask_value) >> shift_value;
 				return (byte)value;
 			}
 			
@@ -871,13 +877,11 @@ public class KISA_SEED_CBC {
 		}
 
 		public static void byte_to_int(int[] dst, int dst_offset, byte[] src, int src_offset, int ENDIAN) {
-			int value = 0;
 			if(ENDIAN == BIG_ENDIAN) {
-				 value = ((0x0ff&src[src_offset]) << 24) | ((0x0ff&src[src_offset+1]) << 16) | ((0x0ff&src[src_offset+2]) << 8) | ((0x0ff&src[src_offset+3]));
+				dst[dst_offset] = ((0x0ff&src[src_offset]) << 24) | ((0x0ff&src[src_offset+1]) << 16) | ((0x0ff&src[src_offset+2]) << 8) | ((0x0ff&src[src_offset+3]));
 			} else {
-				value = ((0x0ff&src[src_offset])) | ((0x0ff&src[src_offset+1]) << 8) | ((0x0ff&src[src_offset+2]) << 16) | ((0x0ff&src[src_offset+3]) << 24);
+				dst[dst_offset] = ((0x0ff&src[src_offset])) | ((0x0ff&src[src_offset+1]) << 8) | ((0x0ff&src[src_offset+2]) << 16) | ((0x0ff&src[src_offset+3]) << 24);
 			}
-			dst[dst_offset] = value;
 		}
 		
 		public static int byte_to_int(byte[] src, int src_offset, int ENDIAN) {
diff --git a/src/main/java/com/palnet/server/encrptn/kisa/KISA_SHA256.java b/src/main/java/com/palnet/server/encrptn/kisa/KISA_SHA256.java
index 8a790fa..a8b91af 100644
--- a/src/main/java/com/palnet/server/encrptn/kisa/KISA_SHA256.java
+++ b/src/main/java/com/palnet/server/encrptn/kisa/KISA_SHA256.java
@@ -294,12 +294,18 @@ public class KISA_SHA256 {
 			if(ENDIAN == BIG_ENDIAN) {
 				int shift_value = (3-b_offset%4)*8;
 				int mask_value =  0x0ff << shift_value;
-				int value = (src[b_offset/4] & mask_value) >> shift_value;
+				int mask_value2 = src[b_offset/4];
+				int value2 = mask_value2 & mask_value;
+				int value = value2 >> shift_value;
+//				int value = (src[b_offset/4] & mask_value) >> shift_value;
 				return (byte)value;
 			} else {
 				int shift_value = (b_offset%4)*8;
 				int mask_value =  0x0ff << shift_value;
-				int value = (src[b_offset/4] & mask_value) >> shift_value;
+				int mask_value2 = src[b_offset/4];
+				int value2 = mask_value2 & mask_value;
+				int value = value2 >> shift_value;
+//				int value = (src[b_offset/4] & mask_value) >> shift_value;
 				return (byte)value;
 			}