Anansi_safe 2020-12-06 16:15 采纳率: 0%
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AES加密算法的问题

用C++实现的AES加密算法,为什么加密结果是错误的,密钥扩展,列混合,移位什么的我都单独去输出查看过计算结果,都没有问题,为什么偏偏最后结果错了

代码:

AES.h

#pragma once
#include<iostream>
#include<cstring>
#include"../include/DefHead.h"
#include"../include/C_EncryCore.h"

#define GET_HIGHT(x) ((x&0xf0)>>4)
#define GET_LOW(x)    ((x&0x0f))

class AES:public CEncryCore
{
public:
  explicit AES();
  ~AES();
  std::string AES_Encode
  (
    _In_ const unsigned char* input_data,
    _In_ size_t input_len,
    _In_ unsigned char* key,
    _Inout_ size_t key_len,
    _Inout_ int& backcode
  );

  std::string AES_Decode
  (
    _In_ const unsigned char* input_data,
    _In_ size_t input_len,
    _In_ unsigned char* key,
    _Inout_ size_t key_len,
    _Inout_ int& backcode
  );

private:
  //密钥扩展函数
  void KeyExtend();
  //GF二元运算函数
  unsigned char GFMul(
    _In_ unsigned char x,
    _In_ unsigned char n
  );
  unsigned int GFMulT(
    _In_ unsigned char s
  );
  //加密处理函数
  void EncodeHandle(
    _In_ int roud
  );
  //明文分组位移表
  unsigned char P[4][4]={
      {0,0,0,0},
      {0,0,0,0},
      {0,0,0,0},
      {0,0,0,0},
  };
  //密钥分组位移表
  unsigned char K[4][4]={
      {0,0,0,0},
      {0,0,0,0},
      {0,0,0,0},
      {0,0,0,0},
  };
  //列混合表
  unsigned char colM[4][4]={
    {2, 3, 1, 1},
    {1, 2, 3, 1},
    {1, 1, 2, 3},
    {3, 1, 1, 2}
  };
  //扩展密钥列表
  unsigned char Ki[44][4]={
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
    {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},
  };
  //逆S盒
  unsigned char InverSBox[0x10][0x10]={
  {0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb},
  {0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb},
  {0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e},
  {0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25},
  {0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92},
  {0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84},
  {0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06},
  {0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b},
  {0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73},
  {0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e},
  {0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b},
  {0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4},
  {0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f},
  {0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef},
  {0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61},
  {0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d}
  };
  //S盒
  unsigned char SBox[0x10][0x10]={
  {0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76},
  {0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0},
  {0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15},
  {0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75},
  {0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84},
  {0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf},
  {0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8},
  {0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2},
  {0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73},
  {0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb},
  {0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79},
  {0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08},
  {0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a},
  {0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e},
  {0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf},
  {0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16}
  };
};

AES.cpp

#include "../include/AES.h"

AES::AES()
{
  nullptr;
}

/**
*加密函数
**/
std::string AES::AES_Encode
(
  _In_ const unsigned char* input_data,
  _In_ size_t input_len,
  _In_ unsigned char* key,
  _Inout_ size_t key_len,
  _Inout_ int& backcode
)
{
  int count = (input_len/0x10);
  int mod = (input_len%0x10);
  std::string backdata;

  unsigned char temp_mem[0x10];
  unsigned char last_c[0x20];
  memset(last_c, 0x00, 0x10);
  //数据长度过大异常处理
  if(input_len > 0xffffff)
  {
    backcode = __AES_INPUTDATA_TO_LONG;
    return nullptr;
  }
  //密钥过短处理
  if(key_len < 0x10)
  {
    backcode = __AES_KEYLENGHT_TO_SHORT;
    return nullptr;
  }
  //将密钥拷贝进4×4列表中
  memcpy(this->K, key, 0x10);
  //将列表拷入44×4的列表中
  memcpy(this->Ki, this->K, 0x10);
  //扩展密钥
  KeyExtend();
  //计算前几轮
  for(int j=1;j<=count;j++)
  {
    //将明文16字节一组拷贝进表
    memcpy(this->P, (input_data+(0x10*(j-1))), 0x10);
    /**
    *加密过程
    **/
    //第一轮前轮密钥加
    this->P[0][0] ^= this->Ki[0][0];
    this->P[0][1] ^= this->Ki[0][1];
    this->P[0][2] ^= this->Ki[0][2];
    this->P[0][3] ^= this->Ki[0][3];

    this->P[1][0] ^= this->Ki[1][0];
    this->P[1][1] ^= this->Ki[1][1];
    this->P[1][2] ^= this->Ki[1][2];
    this->P[1][3] ^= this->Ki[1][3];

    this->P[2][0] ^= this->Ki[2][0];
    this->P[2][1] ^= this->Ki[2][1];
    this->P[2][2] ^= this->Ki[2][2];
    this->P[2][3] ^= this->Ki[2][3];

    this->P[3][0] ^= this->Ki[3][0];
    this->P[3][1] ^= this->Ki[3][1];
    this->P[3][2] ^= this->Ki[3][2];
    this->P[3][3] ^= this->Ki[3][3];
    //10轮加密
    for(int i=1;i<=0x0a;i++)
      EncodeHandle(i);
  }
  //输出调试查看前十六个字节内容加密是否正确
  for(int u=0;u<4;u++)
  {
    for(int y=0;y<4;y++)
      printf("%lx ", this->P[u][y]);
    puts("\n");
  }
  //如果无法整除16
  /*if(mod)
  {
    //差值
    unsigned char dif = (0x10-mod);
    //差几个字节,就补几个几
    memset(this->P, dif, 0x10);
    //把明文余下的几个字节拷贝进来
    memcpy(this->P, (input_data-mod), mod);
  }
  //如果能够整除就在最后再添加16个16
  else
  {
    memset(this->P, 0x10, 0x10);

  }*/
  backcode = 0;
  return backdata;
}

/**
*加密处理函数
**/
void AES::EncodeHandle(
  _In_ int roud
)
{
  /**
  1.字节代换
  **/
  this->P[0][0] = this->SBox[GET_HIGHT(this->P[0][0])][GET_LOW(this->P[0][0])];
  this->P[0][1] = this->SBox[GET_HIGHT(this->P[0][1])][GET_LOW(this->P[0][1])];
  this->P[0][2] = this->SBox[GET_HIGHT(this->P[0][2])][GET_LOW(this->P[0][2])];
  this->P[0][3] = this->SBox[GET_HIGHT(this->P[0][3])][GET_LOW(this->P[0][3])];

  this->P[1][0] = this->SBox[GET_HIGHT(this->P[1][0])][GET_LOW(this->P[1][0])];
  this->P[1][1] = this->SBox[GET_HIGHT(this->P[1][1])][GET_LOW(this->P[1][1])];
  this->P[1][2] = this->SBox[GET_HIGHT(this->P[1][2])][GET_LOW(this->P[1][2])];
  this->P[1][3] = this->SBox[GET_HIGHT(this->P[1][3])][GET_LOW(this->P[1][3])];

  this->P[2][0] = this->SBox[GET_HIGHT(this->P[2][0])][GET_LOW(this->P[2][0])];
  this->P[2][1] = this->SBox[GET_HIGHT(this->P[2][1])][GET_LOW(this->P[2][1])];
  this->P[2][2] = this->SBox[GET_HIGHT(this->P[2][2])][GET_LOW(this->P[2][2])];
  this->P[2][3] = this->SBox[GET_HIGHT(this->P[2][3])][GET_LOW(this->P[2][3])];

  this->P[3][0] = this->SBox[GET_HIGHT(this->P[3][0])][GET_LOW(this->P[3][0])];
  this->P[3][1] = this->SBox[GET_HIGHT(this->P[3][1])][GET_LOW(this->P[3][1])];
  this->P[3][2] = this->SBox[GET_HIGHT(this->P[3][2])][GET_LOW(this->P[3][2])];
  this->P[3][3] = this->SBox[GET_HIGHT(this->P[3][3])][GET_LOW(this->P[3][3])];
  /**
  *2.行位移,第一行不用动从第二行开始
  **/
 unsigned char tmp = 0;
 unsigned char tmp1 = 0;
 unsigned char tmp2 = 0;
 //第二行左移1位
 tmp = this->P[1][0];
 this->P[1][0] = this->P[1][1];
 this->P[1][1] = this->P[1][2];
 this->P[1][2] = this->P[1][3];
 this->P[1][3] = tmp;
 //第三行左移2位
 tmp = this->P[2][0];
 tmp1 = this->P[2][1];
 this->P[2][0] = this->P[2][2];
 this->P[2][1] = this->P[2][3];
 this->P[2][2] = tmp;
 this->P[2][3] = tmp1;
 //第四行左移3位
 tmp = this->P[3][0];
 tmp1 = this->P[3][1];
 tmp2 = this->P[3][2];
 this->P[3][0] = this->P[3][3];
 this->P[3][1] = tmp;
 this->P[3][2] = tmp1;
 this->P[3][3] = tmp2;

  /**
  *3.列混合
  **/
  //只有前9轮需要列混合
  if(roud < 10)
  {
    unsigned char tmp_p[4][4];

    memcpy(tmp_p, this->P, 0x10);
    this->P[0][0] = GFMul(colM[0][0],tmp_p[0][0]) ^ GFMul(colM[0][1],tmp_p[0][1])
    ^ GFMul(colM[0][2],tmp_p[0][2]) ^ GFMul(colM[0][3], tmp_p[0][3]);
    this->P[0][1] = GFMul(colM[1][0],tmp_p[0][0]) ^ GFMul(colM[1][1],tmp_p[0][1])
    ^ GFMul(colM[1][2],tmp_p[0][2]) ^ GFMul(colM[1][3], tmp_p[0][3]);
    this->P[0][2] = GFMul(colM[2][0],tmp_p[0][0]) ^ GFMul(colM[2][1],tmp_p[0][1])
    ^ GFMul(colM[2][2],tmp_p[0][2]) ^ GFMul(colM[2][3], tmp_p[0][3]);
    this->P[0][3] = GFMul(colM[3][0],tmp_p[0][0]) ^ GFMul(colM[3][1],tmp_p[0][1])
    ^ GFMul(colM[3][2],tmp_p[0][2]) ^ GFMul(colM[3][3], tmp_p[0][3]);

    this->P[1][0] = GFMul(colM[0][0],tmp_p[1][0]) ^ GFMul(colM[0][1],tmp_p[1][1])
    ^ GFMul(colM[0][2],tmp_p[1][2]) ^ GFMul(colM[0][3], tmp_p[1][3]);
    this->P[1][1] = GFMul(colM[1][0],tmp_p[1][0]) ^ GFMul(colM[1][1],tmp_p[1][1])
    ^ GFMul(colM[1][2],tmp_p[1][2]) ^ GFMul(colM[1][3], tmp_p[1][3]);
    this->P[1][2] = GFMul(colM[2][0],tmp_p[1][0]) ^ GFMul(colM[2][1],tmp_p[1][1])
    ^ GFMul(colM[2][2],tmp_p[1][2]) ^ GFMul(colM[2][3], tmp_p[1][3]);
    this->P[1][3] = GFMul(colM[3][0],tmp_p[1][0]) ^ GFMul(colM[3][1],tmp_p[1][1])
    ^ GFMul(colM[3][2],tmp_p[1][2]) ^ GFMul(colM[3][3], tmp_p[1][3]);

    this->P[2][0] = GFMul(colM[0][0],tmp_p[2][0]) ^ GFMul(colM[0][1],tmp_p[2][1])
    ^ GFMul(colM[0][2],tmp_p[2][2]) ^ GFMul(colM[0][3], tmp_p[2][3]);
    this->P[2][1] = GFMul(colM[1][0],tmp_p[2][0]) ^ GFMul(colM[1][1],tmp_p[2][1])
    ^ GFMul(colM[1][2],tmp_p[2][2]) ^ GFMul(colM[1][3], tmp_p[2][3]);
    this->P[2][2] = GFMul(colM[2][0],tmp_p[2][0]) ^ GFMul(colM[2][1],tmp_p[2][1])
    ^ GFMul(colM[2][2],tmp_p[2][2]) ^ GFMul(colM[2][3], tmp_p[2][3]);
    this->P[2][3] = GFMul(colM[3][0],tmp_p[2][0]) ^ GFMul(colM[3][1],tmp_p[2][1])
    ^ GFMul(colM[3][2],tmp_p[2][2]) ^ GFMul(colM[3][3], tmp_p[2][3]);

    this->P[3][0] = GFMul(colM[0][0],tmp_p[3][0]) ^ GFMul(colM[0][1],tmp_p[3][1])
    ^ GFMul(colM[0][2],tmp_p[3][2]) ^ GFMul(colM[0][3], tmp_p[3][3]);
    this->P[3][1] = GFMul(colM[1][0],tmp_p[3][0]) ^ GFMul(colM[1][1],tmp_p[3][1])
    ^ GFMul(colM[1][2],tmp_p[3][2]) ^ GFMul(colM[1][3], tmp_p[3][3]);
    this->P[3][2] = GFMul(colM[2][0],tmp_p[3][0]) ^ GFMul(colM[2][1],tmp_p[3][1])
    ^ GFMul(colM[2][2],tmp_p[3][2]) ^ GFMul(colM[2][3], tmp_p[3][3]);
    this->P[3][3] = GFMul(colM[3][0],tmp_p[3][0]) ^ GFMul(colM[3][1],tmp_p[3][1])
    ^ GFMul(colM[3][2],tmp_p[3][2]) ^ GFMul(colM[3][3], tmp_p[3][3]);
  }
  /**
  4.轮密钥加
  **/
  this->P[0][0] ^= this->Ki[roud*4+0][0];
  this->P[0][1] ^= this->Ki[roud*4+0][1];
  this->P[0][2] ^= this->Ki[roud*4+0][2];
  this->P[0][3] ^= this->Ki[roud*4+0][3];

  this->P[1][0] ^= this->Ki[roud*4+1][0];
  this->P[1][1] ^= this->Ki[roud*4+1][1];
  this->P[1][2] ^= this->Ki[roud*4+1][2];
  this->P[1][3] ^= this->Ki[roud*4+1][3];

  this->P[2][0] ^= this->Ki[roud*4+2][0];
  this->P[2][1] ^= this->Ki[roud*4+2][1];
  this->P[2][2] ^= this->Ki[roud*4+2][2];
  this->P[2][3] ^= this->Ki[roud*4+2][3];

  this->P[3][0] ^= this->Ki[roud*4+3][0];
  this->P[3][1] ^= this->Ki[roud*4+3][1];
  this->P[3][2] ^= this->Ki[roud*4+3][2];
  this->P[3][3] ^= this->Ki[roud*4+3][3];
}

/**
*GF二元运算函数
**/
unsigned char AES::GFMul(
  _In_ unsigned char x,
  _In_ unsigned char n
)
{
  unsigned int tp = 0;
  switch (x)
  {
    case 1:
      tp = n;
      break;
    case 2:
      tp = GFMulT(n);
      break;
    case 3:
    tp = GFMulT(n) ^ n;
      break;
    default:
      break;
  }

  return (unsigned char)tp;
}

unsigned int AES::GFMulT(
  _In_ unsigned char s
)
{
  unsigned int result = s<<1;
  unsigned int a7 = result & 0x00000100;
  if(a7)
  {
    result = result & 0x000000ff;
    result = result ^ 0x1b;
  }
  return result;
}


/**
*密钥扩展函数
**/
void AES::KeyExtend()
{
  //W[4] = W[0] ⨁ T(W[3])
  //常量Rcon
  unsigned char tmp_list[4];
  unsigned char back_list[4];

  unsigned char Rcon[0xa] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1B, 0x36};
  for(int i=4;i<44;i++)
  {
    //每16字节为一组,每组开始的四字节执行以下操作
    if(!(i%4))
    {
      //开始三步走:
      //1.循环位移
      unsigned char tmp = 0;
      memcpy(tmp_list, &this->Ki[i-4], 4);
      //将4-1下标的数组元素拷贝到第4组中
      this->Ki[i][0] = this->Ki[i-1][0];
      this->Ki[i][1] = this->Ki[i-1][1];
      this->Ki[i][2] = this->Ki[i-1][2];
      this->Ki[i][3] = this->Ki[i-1][3];
      //位移
      tmp = this->Ki[i][0];
      this->Ki[i][0] = this->Ki[i][1];
      this->Ki[i][1] = this->Ki[i][2];
      this->Ki[i][2] = this->Ki[i][3];
      this->Ki[i][3] = tmp;

      //2.去S盒查表
      this->Ki[i][0] = tmp_list[0] ^ (this->SBox[GET_HIGHT(this->Ki[i][0])][GET_LOW(this->Ki[i][0])] ^ Rcon[(i-4)/4]);
      this->Ki[i][1] = tmp_list[1] ^ this->SBox[GET_HIGHT(this->Ki[i][1])][GET_LOW(this->Ki[i][1])];
      this->Ki[i][2] = tmp_list[2] ^ this->SBox[GET_HIGHT(this->Ki[i][2])][GET_LOW(this->Ki[i][2])];
      this->Ki[i][3] = tmp_list[3] ^ this->SBox[GET_HIGHT(this->Ki[i][3])][GET_LOW(this->Ki[i][3])];
      memcpy(back_list, &this->Ki[i], 0x04);
    }
    //剩下的12字节执行以下下操作
    else
    {
      this->Ki[i][0] = this->Ki[i-4][0] ^ back_list[0];
      this->Ki[i][1] = this->Ki[i-4][1] ^ back_list[1];
      this->Ki[i][2] = this->Ki[i-4][2] ^ back_list[2];
      this->Ki[i][3] = this->Ki[i-4][3] ^ back_list[3];
      memcpy(back_list, &this->Ki[i], 4);
    }
  }
  return;
}

AES::~AES()
{
  nullptr;
}

暂时只对前十六个字节进行了加密处理,后面还要补齐的内容还未作处理,但加密结果是错的

正确的:

我的:

 

  • 写回答

1条回答 默认 最新

  • CSDN-Ada助手 CSDN-AI 官方账号 2022-09-09 16:17
    关注
    不知道你这个问题是否已经解决, 如果还没有解决的话:

    如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 以帮助更多的人 ^-^
    评论

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