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[LDRA] 585 S: 동일한 데이터에 대한 비트와 연산 - 한줄로 작업되는 부분들 변수 추가로 나눠서 처리

feature/ldra
leehagjoon(이학준) 12 months ago
parent
commit
eae3ae285a
  1. 16
      src/main/java/com/palnet/server/encrptn/kisa/KISA_SEED_CBC.java
  2. 10
      src/main/java/com/palnet/server/encrptn/kisa/KISA_SHA256.java

16
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) {

10
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;
}

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