diff --git a/netty/src/main/java/com/ljsd/jieling/netty/cocdex/Tea.java b/netty/src/main/java/com/ljsd/jieling/netty/cocdex/Tea.java index 797e765d5..2de12e359 100644 --- a/netty/src/main/java/com/ljsd/jieling/netty/cocdex/Tea.java +++ b/netty/src/main/java/com/ljsd/jieling/netty/cocdex/Tea.java @@ -46,62 +46,40 @@ public class Tea { bys[offset] = (byte) ((content >> 24) & 0xff); } - //byte[]型数据转成int[]型数据 - private static int[] byteToIntArray(byte[] content, int offset) { - - int[] result = new int[content.length >> 2]; //除以2的n次方 == 右移n位 即 content.length / 4 == content.length >> 2 - for (int i = 0, j = offset; j < content.length; i++, j += 4) { - result[i] = byteToInt(content, j); - } - return result; - } - - //int[]型数据转成byte[]型数据 - private static byte[] intArrayToByte(int[] content, int offset) { - byte[] result = new byte[content.length << 2]; //乘以2的n次方 == 左移n位 即 content.length * 4 == content.length << 2 - for (int i = 0, j = offset; j < result.length; i++, j += 4) { - intToByte(result, j, content[i]); - } - return result; - } - - //加密 public static byte[] encrypt(byte[] content, int offset, int[] key, int times){//times为加密轮数 - int[] tempInt = byteToIntArray(content, offset); int delta=0x9e3779b9; //这是算法标准给的值 int a = key[0], b = key[1], c = key[2], d = key[3]; - for(int m=0; m>5) + b); z += ((y<<4) + c) ^ (y + sum) ^ ((y>>5) + d); } - tempInt[m]=y; - tempInt[m+1]=z; + intToByte(content, m, y); + intToByte(content, m+4, z); } - return intArrayToByte(tempInt, 0); + return content; } //解密 public static byte[] decrypt(byte[] encryptContent, int offset, int[] key, int times){ - int[] tempInt = byteToIntArray(encryptContent, offset); int delta = 0x9e3779b9; //这是算法标准给的值 int a = key[0], b = key[1], c = key[2], d = key[3]; - for(int m=0; m> 5) + d); y -= ((z << 4) + a) ^ (z + sum) ^ ((z >> 5) + b); sum -= delta; } - tempInt[m] = y; - tempInt[m+1] = z; - } - return intArrayToByte(tempInt, 0); + intToByte(encryptContent, m, y); + intToByte(encryptContent, m+4, z); + } + return encryptContent; } public static void shortToByte(byte[] bys, int offset, int content) { @@ -115,16 +93,13 @@ public class Tea { } public static byte[] encrypt2(byte[] content, int[] key) { - byte[] bys = content; - if (bys.length % 8 != 0) { - bys = new byte[(bys.length + 7) / 8 * 8]; - System.arraycopy(content, 0, bys, 0, content.length); - } - byte[] encryptContent = encrypt(bys, 0, key, TIMES); - byte[] result = new byte[encryptContent.length + 2]; - shortToByte(result, 0, content.length); - System.arraycopy(encryptContent, 0, result, 2, encryptContent.length); - return result; + int tobalLen = (content.length+7)/8*8 + 2; + byte[] bys = new byte[tobalLen]; + System.arraycopy(content, 0, bys, 2, content.length); + + byte[] encryptContent = encrypt(bys, 2, key, TIMES); + shortToByte(encryptContent, 0, content.length); + return encryptContent; }