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这是个CRC的欧皇游戏非酋就不要凑热闹了Orz！什么也能肝？？ 答案格式whaleCTF{xxx}
查壳无壳 OD下API断点可以快速定位
我们的输入长度需要等于20 只需要用前十位就行
后十位取内存已有的数组与0x7异或即可
猜测这是后半部分
str = [0x64, 0x27, 0x77, 0x75, 0x68, 0x60, 0x75, 0x66, 0x6A, 0x26]
flag = ''
for i in str:
flag+=chr(i^0x7)
print flag
#c program!用IDA分析前半部分 发现将前十位进行奇偶拆直接赋值给一个 272 大小的字符表
然后对这个字符表中的一系列数在一张大的 256 个整数中进行连续映射，然后找到符合最终结果的值
必须要爆使得这个if成立才可以
#include <stdio.h>
unsigned char table1[] =
{
0x6F, 0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20,
0x61, 0x20, 0x6E, 0x6F, 0x74, 0x20, 0x64, 0x69, 0x66, 0x66,
0x63, 0x75, 0x6C, 0x74, 0x20, 0x70, 0x72, 0x6F, 0x62, 0x6C,
0x65, 0x6D, 0x20, 0x69, 0x66, 0x20, 0x79, 0x6F, 0x75, 0x20,
0x68, 0x61, 0x76, 0x65, 0x20, 0x61, 0x20, 0x76, 0x65, 0x72,
0x79, 0x20, 0x67, 0x6F, 0x6F, 0x64, 0x20, 0x63, 0x6F, 0x6D,
0x70, 0x75, 0x74, 0x65, 0x2E, 0x42, 0x75, 0x74, 0x20, 0x69,
0x66, 0x20, 0x79, 0x6F, 0x75, 0x20, 0x64, 0x6F, 0x20, 0x6E,
0x6F, 0x74, 0x20, 0x68, 0x61, 0x76, 0x65, 0x20, 0x61, 0x20,
0x67, 0x6F, 0x6F, 0x64, 0x20, 0x63, 0x6F, 0x6D, 0x70, 0x75,
0x74, 0x65, 0x72, 0x2E, 0x49, 0x74, 0x20, 0x73, 0x65, 0x65,
0x6D, 0x73, 0x20, 0x74, 0x68, 0x61, 0x74, 0x20, 0x54, 0x68,
0x69, 0x73, 0x20, 0x70, 0x72, 0x6F, 0x62, 0x6C, 0x65, 0x6D,
0x20, 0x77, 0x69, 0x6C, 0x6C, 0x20, 0x74, 0x61, 0x6B, 0x65,
0x20, 0x61, 0x20, 0x6C, 0x6F, 0x74, 0x20, 0x6F, 0x66, 0x20,
0x74, 0x69, 0x6D, 0x65, 0x2E, 0x42, 0x75, 0x74, 0x20, 0x6E,
0x6F, 0x74, 0x20, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x20, 0x69,
0x73, 0x20, 0x69, 0x6D, 0x70, 0x6F, 0x73, 0x73, 0x69, 0x62,
0x6C, 0x65, 0x2E, 0x53, 0x6F, 0x20, 0x6A, 0x75, 0x73, 0x74,
0x20, 0x74, 0x72, 0x79, 0x20, 0x69, 0x74, 0x21, 0x21, 0x53,
0x6F, 0x6D, 0x65, 0x20, 0x74, 0x69, 0x6D, 0x65, 0x73, 0x2C,
0x54, 0x68, 0x65, 0x20, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x20,
0x77, 0x65, 0x20, 0x73, 0x65, 0x65, 0x6D, 0x20, 0x69, 0x73,
0x20, 0x6E, 0x6F, 0x74, 0x20, 0x72, 0x65, 0x61, 0x6C, 0x6C,
0x20, 0x5B, 0x5D, 0x5B, 0x5D, 0x28, 0x29, 0x28, 0x29, 0x3C,
0x3E, 0x3C, 0x3E, 0x2E, 0x2E
};
unsigned char table2[] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x30,
0x07, 0x77, 0x03, 0x83, 0x6B, 0xF2, 0x2C, 0x61, 0x0E, 0xEE,
0xF7, 0x70, 0x3B, 0xE1, 0xBA, 0x51, 0x09, 0x99, 0xF4, 0xF3,
0x50, 0x13, 0x19, 0xC4, 0x6D, 0x07, 0x1F, 0x97, 0x9A, 0xC7,
0x8F, 0xF4, 0x6A, 0x70, 0x1C, 0x14, 0xF1, 0x35, 0x35, 0xA5,
0x63, 0xE9, 0xE8, 0xE7, 0xA1, 0x26, 0xA3, 0x95, 0x64, 0x9E,
0xEB, 0x64, 0xCA, 0xD4, 0x32, 0x88, 0xDB, 0x0E, 0xCF, 0x58,
0xD9, 0x8A, 0xA4, 0xB8, 0xDC, 0x79, 0xCC, 0xDB, 0xB2, 0x78,
0x1E, 0xE9, 0xD5, 0xE0, 0x38, 0x28, 0xE2, 0x6B, 0x88, 0xD9,
0xD2, 0x97, 0x3B, 0xAB, 0x89, 0x99, 0x2B, 0x4C, 0xB6, 0x09,
0xD0, 0xCF, 0x43, 0x4D, 0xBD, 0x7C, 0xB1, 0x7E, 0xD3, 0x4C,
0x28, 0xBF, 0x07, 0x2D, 0xB8, 0xE7, 0x27, 0xBF, 0x78, 0xAC,
0x91, 0x1D, 0xBF, 0x90, 0x24, 0x3C, 0x13, 0x5E, 0x64, 0x10,
0xB7, 0x1D, 0x6F, 0xC7, 0x5E, 0x10, 0xF2, 0x20, 0xB0, 0x6A,
0x6C, 0x44, 0x35, 0xE2, 0x48, 0x71, 0xB9, 0xF3, 0x98, 0xB7,
0x65, 0xF1, 0xDE, 0x41, 0xBE, 0x84, 0x9B, 0x34, 0x0E, 0x03,
0x7D, 0xD4, 0xDA, 0x1A, 0x70, 0x50, 0xC4, 0xD7, 0xEB, 0xE4,
0xDD, 0x6D, 0x73, 0xD3, 0xAF, 0x25, 0x51, 0xB5, 0xD4, 0xF4,
0x87, 0x20, 0xFF, 0x36, 0xC7, 0x85, 0xD3, 0x83, 0x84, 0xA3,
0x94, 0xC4, 0x56, 0x98, 0x6C, 0x13, 0xA0, 0x9F, 0x87, 0x9A,
0xC0, 0xA8, 0x6B, 0x64, 0xA3, 0x1C, 0xEC, 0x68, 0x7A, 0xF9,
0x62, 0xFD, 0x57, 0xEF, 0xBC, 0x7B, 0xEC, 0xC9, 0x65, 0x8A,
0x54, 0x6C, 0xD7, 0x89, 0x4F, 0x5C, 0x01, 0x14, 0xBF, 0x08,
0x1D, 0x5D, 0xD9, 0x6C, 0x06, 0x63, 0xBC, 0x8B, 0x76, 0xAF,
0x63, 0x3D, 0x0F, 0xFA, 0x48, 0x78, 0x26, 0xBC, 0xF5, 0x0D,
0x08, 0x8D, 0x4B, 0xFB, 0x4D, 0x4E, 0xC8, 0x20, 0x6E, 0x3B,
0xDE, 0x8E, 0xBD, 0x20, 0x5E, 0x10, 0x69, 0x4C, 0xDD, 0x0D,
0xD6, 0xD2, 0xE4, 0x41, 0x60, 0xD5, 0x29, 0xFE, 0x86, 0xC1,
0x72, 0x71, 0x67, 0xA2, 0x2A, 0x7D, 0xED, 0x33, 0xD1, 0xE4,
0x03, 0x3C, 0xC1, 0x19, 0x27, 0xE7, 0x47, 0xD4, 0x04, 0x4B,
0xC2, 0x9A, 0x4C, 0x15, 0xFD, 0x85, 0x0D, 0xD2, 0x36, 0x69,
0x1C, 0x06, 0x6B, 0xB5, 0x0A, 0xA5, 0x35, 0xEA, 0x77, 0xF4,
0xFA, 0xA8, 0xB5, 0x35, 0x11, 0xD6, 0x64, 0xAA, 0x6C, 0x98,
0xB2, 0x42, 0x12, 0x55, 0x0F, 0x58, 0xD6, 0xC9, 0xBB, 0xDB,
0xE6, 0xA6, 0x5F, 0x4B, 0x40, 0xF9, 0xBC, 0xAC, 0xE5, 0x25,
0x34, 0xB9, 0xE3, 0x6C, 0xD8, 0x32, 0x0E, 0x41, 0xFE, 0x6D,
0x75, 0x5C, 0xDF, 0x45, 0x0D, 0xC2, 0x95, 0x9F, 0xCF, 0x0D,
0xD6, 0xDC, 0xF9, 0x31, 0xC5, 0x8C, 0x59, 0x3D, 0xD1, 0xAB,
0xFA, 0xB2, 0xAE, 0x7E, 0xAC, 0x30, 0xD9, 0x26, 0xB1, 0x49,
0xE3, 0x30, 0x3A, 0x00, 0xDE, 0x51, 0xB2, 0xCA, 0x88, 0xC2,
0x80, 0x51, 0xD7, 0xC8, 0x46, 0x39, 0xD8, 0xD1, 0x16, 0x61,
0xD0, 0xBF, 0x45, 0xBA, 0xB3, 0x23, 0xB5, 0xF4, 0xB4, 0x21,
0xAE, 0xDE, 0x79, 0xF7, 0x23, 0xC4, 0xB3, 0x56, 0xAD, 0x5D,
0x12, 0x05, 0x99, 0x95, 0xBA, 0xCF, 0x59, 0xAE, 0x42, 0x16,
0x0F, 0xA5, 0xBD, 0xB8, 0x5A, 0x2D, 0x29, 0xE4, 0x9E, 0xB8,
0x02, 0x28, 0x7E, 0x11, 0x3A, 0xBA, 0x08, 0x88, 0x05, 0x5F,
0x7D, 0x92, 0x51, 0x48, 0xB2, 0xD9, 0x0C, 0xC6, 0x89, 0x61,
0x01, 0x5B, 0x24, 0xE9, 0x0B, 0xB1, 0x8A, 0xE2, 0x6A, 0xA9,
0x87, 0x7C, 0x6F, 0x2F, 0x61, 0x86, 0xA0, 0x7D, 0x11, 0x4C,
0x68, 0x58, 0x62, 0x05, 0xCB, 0x8F, 0xAB, 0x1D, 0x61, 0xC1,
0x96, 0xF6, 0x9B, 0x9C, 0x3D, 0x2D, 0x66, 0xB6, 0x95, 0x75,
0xF0, 0x6E, 0x90, 0x41, 0xDC, 0x76, 0xBC, 0x1D, 0x7B, 0x41,
0x06, 0x71, 0xDB, 0x01, 0xBF, 0x9E, 0x10, 0xB3, 0xBC, 0x20,
0xD2, 0x98, 0x4B, 0x6D, 0x40, 0xA0, 0x2A, 0x10, 0xD5, 0xEF,
0x48, 0xEE, 0x2B, 0x52, 0x89, 0x85, 0xB1, 0x71, 0xA3, 0x8A,
0xE1, 0x86, 0x1F, 0xB5, 0xB6, 0x06, 0xA0, 0x09, 0x8A, 0x74,
0xA5, 0xE4, 0xBF, 0x9F, 0x54, 0xFA, 0xDA, 0x67, 0x33, 0xD4,
0xB8, 0xE8, 0x57, 0x79, 0xB1, 0x95, 0xA2, 0xC9, 0x07, 0x78,
0x73, 0x45, 0xA2, 0xCB, 0x34, 0xF9, 0x00, 0x0F, 0x70, 0xC6,
0xC9, 0x39, 0x8E, 0xA8, 0x09, 0x96, 0x84, 0x35, 0x99, 0x2A,
0x18, 0x98, 0x0E, 0xE1, 0x87, 0xB6, 0xF2, 0xD8, 0xBB, 0x0D,
0x6A, 0x7F, 0x6C, 0xD2, 0x38, 0x0C, 0x2D, 0x3D, 0x6D, 0x08,
0x6F, 0x51, 0x53, 0xFE, 0x97, 0x6C, 0x64, 0x91, 0x9B, 0xA2,
0x03, 0xED, 0x01, 0x5C, 0x63, 0xE6, 0x98, 0x21, 0x68, 0x1F,
0xF4, 0x51, 0x6B, 0x6B, 0xD3, 0xDA, 0x25, 0x51, 0x62, 0x61,
0x6C, 0x1C, 0xD0, 0x59, 0x4E, 0xA3, 0xD8, 0x30, 0x65, 0x85,
0x24, 0xAA, 0x1E, 0xB0, 0x4E, 0x00, 0x62, 0xF2, 0x27, 0x29,
0x75, 0x42, 0xED, 0x95, 0x06, 0x6C, 0xCC, 0x4D, 0xBF, 0x96,
0x7B, 0xA5, 0x01, 0x1B, 0xCF, 0xCE, 0xD4, 0x64, 0xC1, 0xF4,
0x08, 0x82, 0x3B, 0x3D, 0x84, 0x77, 0x57, 0xC4, 0x0F, 0xF5,
0x38, 0xBE, 0xEF, 0x85, 0xC6, 0xD9, 0xB0, 0x65, 0x1C, 0x82,
0xFC, 0xDB, 0x50, 0xE9, 0xB7, 0x12, 0x1F, 0x01, 0x97, 0x29,
0xEA, 0xB8, 0xBE, 0x8B, 0xEB, 0xF2, 0xC7, 0x3A, 0x7C, 0x88,
0xB9, 0xFC, 0xE8, 0x71, 0xAC, 0xC8, 0xDF, 0x1D, 0xDD, 0x62,
0x03, 0x15, 0x66, 0x1C, 0x49, 0x2D, 0xDA, 0x15, 0x00, 0x96,
0x0D, 0xEE, 0xF3, 0x7C, 0xD3, 0x8C, 0xF4, 0x65, 0x5D, 0xFD,
0x65, 0x4C, 0xD4, 0xFB, 0xF7, 0xE6, 0x36, 0x0F, 0x58, 0x61,
0xB2, 0x4D, 0x62, 0x93, 0xC6, 0x61, 0xCE, 0x51, 0xB5, 0x3A,
0x61, 0x10, 0xAD, 0x93, 0x74, 0x00, 0xBC, 0xA3, 0x95, 0xE3,
0xFD, 0x80, 0xE2, 0x30, 0xBB, 0xD4, 0x96, 0x60, 0x96, 0x72,
0x41, 0xA5, 0xDF, 0x4A, 0x7D, 0x04, 0x5C, 0xA6, 0xD7, 0x95,
0xD8, 0x3D, 0x7E, 0x87, 0x37, 0x54, 0x6D, 0xC4, 0xD1, 0xA4,
0x8A, 0x74, 0x67, 0x47, 0xFB, 0xF4, 0xD6, 0xD3, 0x89, 0xF7,
0x0C, 0xB5, 0x6A, 0xE9, 0x69, 0x43, 0xAD, 0xCB, 0x1F, 0xEB,
0xFC, 0xD9, 0x6E, 0x34, 0xAE, 0x48, 0x74, 0x19, 0x46, 0x88,
0x67, 0xAD, 0x5A, 0xBB, 0x24, 0x0A, 0xD0, 0xB8, 0x60, 0xDA,
0x59, 0x38, 0x4F, 0xF8, 0x73, 0x2D, 0x04, 0x44, 0xB2, 0x5C,
0x85, 0x2C, 0xE5, 0x1D, 0x03, 0x33, 0xB1, 0xDF, 0xEE, 0xDE,
0x5F, 0x4C, 0x0A, 0xAA, 0x45, 0x2C, 0xBE, 0xCD, 0xC9, 0x7C,
0x0D, 0xDD, 0x46, 0xAF, 0xD5, 0x3F, 0x3C, 0x71, 0x05, 0x50,
0x0D, 0x54, 0x98, 0x71, 0xAA, 0x41, 0x02, 0x27, 0x0E, 0xD7,
0xF3, 0x83, 0x10, 0x10, 0x0B, 0xBE, 0xFA, 0x24, 0xA3, 0x90,
0x86, 0x20, 0x0C, 0xC9, 0xF9, 0xA7, 0xC8, 0x62, 0x25, 0xB5,
0x68, 0x57, 0x12, 0xC3, 0x02, 0xB6, 0xB3, 0x85, 0x6F, 0x20,
0x11, 0x40, 0x69, 0x44, 0x09, 0xD4, 0x66, 0xB9, 0xE5, 0xB3,
0x39, 0x57, 0x9F, 0xE4, 0x61, 0xCE, 0xE6, 0x30, 0x52, 0xA5,
0x0E, 0xF9, 0xDE, 0x5E, 0xC2, 0x0C, 0x41, 0xFB, 0x98, 0xC9,
0xD9, 0x29, 0xC1, 0x8F, 0x2A, 0x09, 0x22, 0x98, 0xD0, 0xB0,
0x35, 0x7C, 0x7A, 0x1A, 0xB4, 0xA8, 0xD7, 0xC7, 0x36, 0xFF,
0x11, 0xE8, 0x17, 0x3D, 0xB3, 0x59, 0xDD, 0x9B, 0xDB, 0x3C,
0x81, 0x0D, 0xB4, 0x2E, 0xDE, 0x18, 0xB0, 0xCE, 0x3B, 0x5C,
0xBD, 0xB7, 0x2A, 0xEB, 0xE0, 0xDD, 0xAD, 0x6C, 0xBA, 0xC0,
0x29, 0x68, 0x8B, 0x2F, 0x20, 0x83, 0xB8, 0xED, 0x78, 0x3B,
0xF6, 0x82, 0xB6, 0xB3, 0xBF, 0x9A, 0x7B, 0xB8, 0x9D, 0x70,
0x0C, 0xE2, 0xB6, 0x03, 0x8F, 0x4B, 0xCD, 0x63, 0x9A, 0xD2,
0xB1, 0x74, 0x8C, 0xC8, 0xA6, 0x91, 0x39, 0x47, 0xD5, 0xEA,
0x67, 0xAC, 0x6C, 0x45, 0xAF, 0x77, 0xD2, 0x9D, 0x64, 0x2F,
0x07, 0xB7, 0x15, 0x26, 0xDB, 0x04, 0x90, 0xDC, 0x57, 0xA4,
0x83, 0x16, 0xDC, 0x73, 0x93, 0x5F, 0x3C, 0x56, 0x12, 0x0B,
0x63, 0xE3, 0xB7, 0x63, 0x2F, 0x08, 0x84, 0x3B, 0x64, 0x94,
0xB4, 0xE0, 0x44, 0xFA, 0x3E, 0x6A, 0x6D, 0x0D, 0x40, 0x13,
0x14, 0xE9, 0xA8, 0x5A, 0x6A, 0x7A, 0x43, 0x90, 0x7F, 0x1B,
0x0B, 0xCF, 0x0E, 0xE4, 0xA8, 0xF4, 0xB5, 0xCF, 0x9D, 0xFF,
0x09, 0x93, 0xAB, 0x77, 0xDE, 0x3D, 0x27, 0xAE, 0x00, 0x0A,
0x5F, 0x84, 0x8E, 0x2E, 0xB1, 0x9E, 0x07, 0x7D, 0x5C, 0x07,
0xE5, 0xDC, 0x44, 0x93, 0x0F, 0xF0, 0x17, 0xFC, 0xA8, 0x92,
0xD2, 0xA3, 0x08, 0x87, 0x14, 0x7F, 0xC3, 0x60, 0x68, 0xF2,
0x01, 0x1E, 0xE0, 0x8C, 0x93, 0x73, 0xFE, 0xC2, 0x06, 0x69,
0xE3, 0x0F, 0xF8, 0x81, 0x5D, 0x57, 0x62, 0xF7, 0x08, 0x6B,
0x32, 0x55, 0xCB, 0x67, 0x65, 0x80, 0x0B, 0xE8, 0x59, 0xA7,
0x71, 0x36, 0x6C, 0x19, 0xFF, 0x1B, 0x09, 0xB4, 0xE7, 0x06,
0x6B, 0x6E, 0xFC, 0x98, 0x62, 0x46, 0x76, 0x1B, 0xD4, 0xFE,
0xD8, 0xA4, 0x71, 0x18, 0xE0, 0x2B, 0xD3, 0x89, 0xDB, 0x27,
0x1A, 0xEA, 0x5A, 0x7A, 0xDA, 0x10, 0x2F, 0xD4, 0x4A, 0xF9,
0xCC, 0x4A, 0xDD, 0x67, 0x2C, 0x57, 0x21, 0x0B, 0x6F, 0xDF,
0xB9, 0xF9, 0xC7, 0x33, 0xEB, 0xDF, 0xF9, 0xEF, 0xBE, 0x8E,
0xC4, 0xB0, 0x80, 0x2D, 0x43, 0xBE, 0xB7, 0x17, 0x30, 0x43,
0xD0, 0x3E, 0xD5, 0x8E, 0xB0, 0x60, 0x33, 0xC0, 0xBB, 0xCC,
0xE8, 0xA3, 0xD6, 0xD6, 0xA6, 0xB5, 0x4B, 0xA2, 0x7E, 0x93,
0xD1, 0xA1, 0xA5, 0x36, 0x20, 0x50, 0xC4, 0xC2, 0xD8, 0x38,
0x51, 0xC5, 0x70, 0x43, 0x52, 0xF2, 0xDF, 0x4F, 0x52, 0x46,
0x1B, 0xB1, 0xF1, 0x67, 0xBB, 0xD1, 0xB9, 0x22, 0xD1, 0x65,
0x67, 0x57, 0xBC, 0xA6, 0xBA, 0xA1, 0xBA, 0x97, 0xDD, 0x06,
0xB5, 0x3F, 0x4E, 0x52, 0xEA, 0x84, 0x4B, 0x36, 0xB2, 0x48,
0x4D, 0xD1, 0x81, 0x76, 0xDA, 0x2B, 0x0D, 0xD8, 0x69, 0xED,
0x92, 0x28, 0x4C, 0x1B, 0x0A, 0xAF, 0x6A, 0x6E, 0xF9, 0xDA,
0xF6, 0x4A, 0x03, 0x36, 0x9E, 0x9D, 0xA9, 0xC9, 0x60, 0x7A,
0x04, 0x41, 0x9D, 0x1E, 0xC2, 0x3B, 0xC3, 0xEF, 0x60, 0xDF,
0x76, 0x7A, 0x08, 0xEF, 0x55, 0xDF, 0x67, 0xA8, 0x75, 0xF9,
0x63, 0x1D, 0xEF, 0x8E, 0x6E, 0x31, 0x81, 0x0A, 0x33, 0x0E,
0x79, 0xBE, 0x69, 0x46, 0x82, 0x89, 0x58, 0xFC, 0x8C, 0xB3,
0x61, 0xCB, 0xC9, 0x72, 0x15, 0xB2, 0x1A, 0x83, 0x66, 0xBC,
0xCA, 0xF1, 0x7E, 0x40, 0xA0, 0xD2, 0x6F, 0x25, 0x3E, 0x02,
0x2E, 0x53, 0x36, 0xE2, 0x68, 0x52, 0x3D, 0x81, 0x45, 0xA1,
0x95, 0x77, 0x0C, 0xCC, 0xD6, 0xE5, 0x8F, 0x75, 0x03, 0x47,
0x0B, 0xBB, 0xD5, 0x66, 0xE4, 0x87, 0xB9, 0x16, 0x02, 0x22,
0x21, 0x95, 0xB4, 0x94, 0x2F, 0x26, 0x05, 0x55, 0x22, 0x16,
0xDF, 0x66, 0xBE, 0x3B, 0xBA, 0xC5, 0x06, 0x2A, 0xCC, 0x38,
0x28, 0x0B, 0xBD, 0xB2, 0x05, 0xA9, 0xA7, 0xCA, 0x92, 0x5A,
0xB4, 0x2B, 0xF1, 0x5A, 0xF7, 0xD9, 0x04, 0x6A, 0xB3, 0x5C,
0xF2, 0xD9, 0x9C, 0x2B, 0xA7, 0xFF, 0xD7, 0xC2, 0x19, 0xBD,
0x56, 0xFF, 0x31, 0xCF, 0xD0, 0xB5, 0x1A, 0x3E, 0x3D, 0x0D,
0x8B, 0x9E, 0xD9, 0x2C, 0xEE, 0xCD, 0x6D, 0x1E, 0x1D, 0xAE,
0xDE, 0x5B, 0xED, 0x4E, 0x06, 0xEC, 0xB0, 0xC2, 0x64, 0x9B,
0xC4, 0x26, 0x8D, 0xC3, 0x26, 0xF2, 0x63, 0xEC, 0xC7, 0xA5,
0xE6, 0x31, 0x9C, 0xA3, 0x6A, 0x75, 0x33, 0x56, 0xB6, 0x22,
0x0A, 0x93, 0x6D, 0x02, 0x30, 0xD5, 0xDD, 0xD0, 0xA9, 0x06,
0x09, 0x9C, 0xDB, 0xB1, 0x17, 0x04, 0x3F, 0x36, 0x0E, 0xEB,
0xD8, 0x32, 0x7C, 0xF6, 0x85, 0x67, 0x07, 0x72, 0x2C, 0xC1,
0x2C, 0xE5, 0x13, 0x57, 0x00, 0x05, 0x2F, 0x42, 0x47, 0x17,
0x82, 0x4A, 0xBF, 0x95, 0x0B, 0x7E, 0x54, 0x49, 0x14, 0x7A,
0xB8, 0xE2, 0x08, 0xFD, 0x3F, 0xBB, 0xAE, 0x2B, 0xB1, 0x7B,
0xFC, 0x0E, 0x6F, 0xA8, 0x38, 0x1B, 0xB6, 0x0C, 0xFF, 0x8D,
0x04, 0x5A, 0x9B, 0x8E, 0xD2, 0x92, 0x14, 0xE9, 0xCE, 0x8E,
0x0D, 0xBE, 0xD5, 0xE5, 0x17, 0x6A, 0xA5, 0x7C, 0xB7, 0xEF,
0xDC, 0x7C, 0xE3, 0x99, 0xF5, 0x6F, 0x21, 0xDF, 0xDB, 0x0B,
0xE0, 0x1A, 0x9E, 0x9D, 0xD4, 0xD2, 0xD3, 0x86, 0xAB, 0xE1,
0xD3, 0xD3, 0x42, 0xE2, 0xD4, 0xF1, 0xA8, 0x62, 0xB8, 0x21,
0xF8, 0xB3, 0xDD, 0x68, 0x5C, 0x91, 0xE8, 0x32, 0x6E, 0x83,
0xDA, 0x1F, 0x5F, 0x12, 0x83, 0xC0, 0xCD, 0x16, 0xBE, 0x81,
0xB4, 0x76, 0x49, 0x14, 0x5B, 0x26, 0xB9, 0xF6, 0xB7, 0xF5,
0x22, 0xE6, 0xE1, 0x77, 0xB0, 0x6F, 0x43, 0x06, 0x72, 0xF5,
0x77, 0x47, 0xB7, 0x18, 0x40, 0x85, 0x19, 0x07, 0xE6, 0x5A,
0x08, 0x88, 0x64, 0xB9, 0x0A, 0x59, 0x70, 0x6A, 0x0F, 0xFF,
0x67, 0x3A, 0x61, 0xAB, 0xCA, 0x3B, 0x06, 0x66, 0x93, 0xC9,
0x31, 0xB8, 0x5C, 0x0B, 0x01, 0x11, 0x90, 0x4A, 0x5A, 0x4A,
0xFF, 0x9E, 0x65, 0x8F, 0x7B, 0x2E, 0x90, 0x9E, 0x69, 0xAE,
0x62, 0xF8, 0x78, 0xAD, 0xFB, 0x6C, 0xD3, 0xFF, 0x6B, 0x61,
0x8C, 0x5E, 0xAB, 0x7F, 0x45, 0xCF, 0x6C, 0x16, 0x8F, 0xDD,
0xC0, 0x8D, 0x78, 0xE2, 0x0A, 0xA0, 0x1A, 0xA8, 0x30, 0xE3,
0xEE, 0xD2, 0x0D, 0xD7, 0x19, 0x2B, 0x5B, 0x11, 0x54, 0x83,
0x04, 0x4E, 0xED, 0xD8, 0x0B, 0x02, 0xC2, 0xB3, 0x03, 0x39,
0xEE, 0x5B, 0x60, 0xF0, 0x61, 0x26, 0x67, 0xA7, 0x05, 0x3F,
0xAA, 0x24, 0xF7, 0x16, 0x60, 0xD0, 0x06, 0xBC, 0xC1, 0xD6,
0x4D, 0x47, 0x69, 0x49, 0xF2, 0x4F, 0x91, 0xC5, 0xDB, 0x77,
0x6E, 0x3E, 0xF1, 0xCC, 0xFA, 0x37, 0x4A, 0x6A, 0xD1, 0xAE,
0xD5, 0xF0, 0xE9, 0x69, 0xDC, 0x5A, 0xD6, 0xD9, 0xD6, 0x73,
0x82, 0x9B, 0x66, 0x0B, 0xDF, 0x40, 0x22, 0x80, 0xD2, 0x88,
0xF0, 0x3B, 0xD8, 0x37, 0x21, 0x03, 0xB9, 0x7A, 0x53, 0xAE,
0xBC, 0xA9, 0xCA, 0x67, 0x73, 0xAE, 0xC5, 0x9E, 0xBB, 0xDE,
0xC9, 0xE4, 0x18, 0x5C, 0x7F, 0xCF, 0xB2, 0x47, 0x3D, 0x17,
0x48, 0x4F, 0xE9, 0xFF, 0xB5, 0x30, 0x3E, 0x94, 0x23, 0xBD,
0x1C, 0xF2, 0xBD, 0xBD, 0x75, 0x6F, 0x6E, 0xF3, 0x8A, 0xC2,
0xBA, 0xCA, 0x76, 0xEC, 0x05, 0x01, 0x30, 0x93, 0xB3, 0x53,
0x82, 0x1F, 0x55, 0x12, 0xA6, 0xA3, 0xB4, 0x24, 0x81, 0x9C,
0x3E, 0xE0, 0x05, 0x36, 0xD0, 0xBA, 0x6A, 0xF8, 0xF4, 0x34,
0x93, 0x06, 0xD7, 0xCD, 0x69, 0x7B, 0x9F, 0xC6, 0x29, 0x57,
0xDE, 0x54, 0x9D, 0x88, 0xCF, 0xD5, 0xBF, 0x67, 0xD9, 0x23,
0x9E, 0x0B, 0xA4, 0x27, 0x2E, 0x7A, 0x66, 0xB3, 0xBA, 0x37,
0xB7, 0x79, 0xB8, 0x4A, 0x61, 0xC4, 0xB9, 0xB4, 0xDC, 0x8B,
0x02, 0x1B, 0x68, 0x5D, 0x4D, 0x47, 0x8C, 0x98, 0x94, 0x2B,
0x6F, 0x2A, 0x4E, 0xC4, 0xE7, 0x6A, 0x37, 0xBE, 0x0B, 0xB4,
0xA5, 0xA0, 0x2D, 0xBE, 0xA1, 0x8E, 0x0C, 0xC3, 0xA6, 0x23,
0x46, 0x4C, 0x1B, 0xDF, 0x05, 0x5A, 0x52, 0xD0, 0x16, 0x5F,
0x8D, 0xEF, 0x02, 0x2D, 0x51, 0x53, 0x7D, 0xAD
};
void do_do(int *ret1, int *ret2){
int ret = 0;
int *dword_4109E8 = (int*)table2;
int *dword_4109EC = (int*)(table2 + 4);
unsigned int v5 = -1;
unsigned int v6 = -1;
int v7 = 0;
int v8,v9;
do
{
v8 = dword_4109E8[2 * (unsigned char)(v5 ^ table1[v7])] ^ (v5 >> 8);
v6 = ((unsigned char)v8
+ (dword_4109EC[2 * (unsigned char)(v6 ^ table1[v7])] ^ (v6 >> 8), 0)) >> 32;
v5 = dword_4109E8[2 * (unsigned char)(v5 ^ table1[v7])] ^ (v5 >> 8);
v7 += 2;
}
while ( v7 < 256 );
*ret1 = v8;
*ret2 = v9;
}
void main()
{
int i, j, k, l, m;
int ret1, ret2;
int flag = 0;
for(i = 32; i < 127; i++){
table1[16 * 0 + 0] = i & 0xFF;
table1[16 * 1 + 1] = i & 0xFF;
for(j = 32; j < 127; j++){
table1[16 * 2 + 2] = j & 0xFF;
table1[16 * 3 + 3] = j & 0xFF;
for(k = 32; k < 127; k++){
table1[16 * 4 + 4] = k & 0xFF;
table1[16 * 5 + 5] = k & 0xFF;
for(l = 32; l < 127; l++){
table1[16 * 6 + 6] = l & 0xFF;
table1[16 * 7 + 7] = l & 0xFF;
for(m = 32; m < 127; m++){
table1[16 * 8 + 8] = m & 0xFF;
table1[16 * 9 + 9] = m & 0xFF;
do_do(&ret1, &ret2);
if(ret1 == ~0xBA56C4F9){
printf("偶数：%c%c%c%c%c\n", i, j, k, l, m);
}
if(ret2 == ~0xE89BA203){
printf("奇数：%c%c%c%c%c\n", i, j, k, l, m);
}
}
}
}
}
}
}然后就没爆破出来 问了师父说是数据有问题
原来是hctf2015的原题