信息安全实验--RSA算法(MFC)
程序员文章站
2022-04-09 10:50:57
...
这门课的第二个实验，用MFC实现的，效率较低，上课时没好好听课。。。不知道优化的算法
再加上本来就不感兴趣，后来知道有更好的算法也懒得改了。
用VS2012写的，没vs2012组件直接打开exe的话肯定是各种dll缺少。。.
界面：
代码依旧是各种混乱，真心不知道怎么写着写着就成这样了。。。
主要的RSADlg.cpp：
// RSADlg.cpp : 实现文件
//
#include "stdafx.h"
#include "RSA.h"
#include "RSADlg.h"
#include "afxdialogex.h"
#include "CBigInt.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
const CString init_n = TEXT("11118307997040540127125109823105301271848973550332368954427695640548513432576994259450033803985092311988645890908953534205158975851659781290866722576482516739954578771412610881330317110987253909648837");
const CString init_e = TEXT("17");
const CString init_d = TEXT("6540181174729729486544182248885471336381749147254334679075115082675596136809996623205902237638289590519567442714719605581557953788754188384094731719545461497844638924792771085828281336401032879552233");
CBigInt n, e, d;
int plainRadio = 2, cipherRadio = 2;
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialogEx
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
// virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
};
CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()
// CRSADlg 对话框
CRSADlg::CRSADlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CRSADlg::IDD, pParent)
// , plainRadio(0)
// , cipherRadio(0)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CRSADlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
// DDX_Radio(pDX, IDC_RADIO_PLAIN_STRING, plainRadio);
// DDX_Radio(pDX, IDC_RADIO_CIPHER_STRING, cipherRadio);
}
BEGIN_MESSAGE_MAP(CRSADlg, CDialogEx)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(ID_CAL_PRIVATE_KEY, &CRSADlg::OnBnClickedCalPrivateKey)
ON_BN_CLICKED(IDC_BUTTON_ENCRYPT, &CRSADlg::OnBnClickedButtonEncrypt)
ON_BN_CLICKED(IDC_BUTTON_DECRYPT, &CRSADlg::OnBnClickedButtonDecrypt)
ON_BN_CLICKED(ID_RANDOM_KEY, &CRSADlg::OnBnClickedRandomKey)
ON_BN_CLICKED(ID_CLEARALL, &CRSADlg::OnBnClickedClearall)
ON_BN_CLICKED(IDC_RADIO_PLAIN_STRING, &CRSADlg::OnBnClickedRadioPlainString)
ON_BN_CLICKED(IDC_RADIO_PLAIN_HEX, &CRSADlg::OnBnClickedRadioPlainHex)
ON_BN_CLICKED(IDC_RADIO_PLAIN_DEC, &CRSADlg::OnBnClickedRadioPlainDec)
ON_BN_CLICKED(IDC_RADIO_CIPHER_STRING, &CRSADlg::OnBnClickedRadioCipherString)
ON_BN_CLICKED(IDC_RADIO_CIPHER_HEX, &CRSADlg::OnBnClickedRadioCipherHex)
ON_BN_CLICKED(IDC_RADIO_CIPHER_DEC, &CRSADlg::OnBnClickedRadioCipherDec)
END_MESSAGE_MAP()
// CRSADlg 消息处理程序
BOOL CRSADlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
// 将“关于...”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
BOOL bNameValid;
CString strAboutMenu;
bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
ASSERT(bNameValid);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
((CButton *)GetDlgItem(IDC_RADIO_PLAIN_DEC))->SetCheck(TRUE);
((CButton *)GetDlgItem(IDC_RADIO_CIPHER_DEC))->SetCheck(TRUE);
CheckRadioButton(IDC_RADIO_PLAIN_STRING, IDC_RADIO_PLAIN_HEX, IDC_RADIO_PLAIN_DEC);
CheckRadioButton(IDC_RADIO_CIPHER_STRING, IDC_RADIO_CIPHER_HEX, IDC_RADIO_CIPHER_DEC);
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_P))->SetWindowText(TEXT("1749216447926182514702512105742818919045636858560222269112115108465858265383133709531890334596655423"));
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_Q))->SetWindowText(TEXT("6356164790367747690013998348667958741992268820093032963081503584133406634652288529307215163417754619"));
((CEdit*) GetDlgItem(IDC_EDIT_PUBLIC_KEY_PRIME_E))->SetWindowText(init_e);
((CEdit*) GetDlgItem(IDC_EDIT_PRIVATE_KEY_PRIME_D))->SetWindowText(init_d);
((CEdit*) GetDlgItem(IDC_EDIT_PLAINTEXT))->SetWindowText(TEXT("123456"));
n.InPutFromStr(init_n);
e.InPutFromStr(init_e);
d.InPutFromStr(init_d);
srand(unsigned(time(NULL))); //初始化随机数
return TRUE; // 除非将焦点设置到控件，否则返回 TRUE
}
void CRSADlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialogEx::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CRSADlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作区矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialogEx::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CRSADlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
//手动输入数据
void CRSADlg::OnBnClickedCalPrivateKey()
{
CBigInt n1, p, q, cbi_t, cbi_t2;
CString str;
char ca[10];
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_P))->GetWindowText(str);
if (str.GetLength() < 1){
MessageBox(TEXT("请输入素数p！"), TEXT("错误"), MB_OK);
return;
}
p = p.InPutFromStr(str);
cbi_t.Mov(2);
if (cbi_t.Cmp(cbi_t.Mon(p, p)) != 0 && (p.Cmp(2) != 0)){
MessageBox(TEXT("输入的p不是素数！"), TEXT("错误"), MB_OK);
return;
}
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_Q))->GetWindowText(str);
if (str.GetLength() < 1){
MessageBox(TEXT("请输入素数q！"), TEXT("错误"), MB_OK);
return;
}
q = q.InPutFromStr(str);
if (cbi_t.Cmp(cbi_t.Mon(q, q)) != 0 && (q.Cmp(2) != 0)){
MessageBox(TEXT("输入的q不是素数！"), TEXT("错误"), MB_OK);
return;
}
if (p.Cmp(q) == 0){
MessageBox(TEXT("q不能等于p！"), TEXT("错误"), MB_OK);
return;
}
((CEdit*) GetDlgItem(IDC_EDIT_PUBLIC_KEY_PRIME_E))->GetWindowText(str);
if (str.GetLength() < 1){
MessageBox(TEXT("请输入素数e！"), TEXT("错误"), MB_OK);
return;
}
e.~CBigInt();
e = e.InPutFromStr(str);
if (cbi_t.Cmp(cbi_t.Mon(e, e)) != 0 && (e.Cmp(2) != 0)){
MessageBox(TEXT("输入的e不是素数！"), TEXT("错误"), MB_OK);
return;
}
n.~CBigInt();
n.Mov(p);
n.Mul(q);
n1.Mov(p.Sub(1));
n1.Mul(q.Sub(1));
if (e.Cmp(n1) != -1){
MessageBox(TEXT("素数e要小于φ(n)=(p-1)(q-1)！"), TEXT("错误"), MB_OK);
return;
}
cbi_t2.Mov(e);
if (n1.Mon(cbi_t2.Sub(1), e).Cmp(1) != 0){
MessageBox(TEXT("素数e和φ(n)=(p-1)(q-1)不互质！"), TEXT("错误"), MB_OK);
return;
}
d.~CBigInt();
d = e.Euc(n1);
((CEdit*) GetDlgItem(IDC_EDIT_PRIVATE_KEY_PRIME_D))->SetWindowText(d.getResult());
((CEdit*) GetDlgItem(IDC_EDIT_PUBLIC_KEY_PRIME_E))->GetWindowText(str);
_itoa_s(str.GetLength(), ca, 10);
str = ca;
((CEdit*) GetDlgItem(IDC_EDIT_KEY_LENGTH))->SetWindowText(str);
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_P))->GetWindowText(str);
_itoa_s(str.GetLength(), ca, 10);
str = ca;
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_BITS_P))->SetWindowText(str);
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_Q))->GetWindowText(str);
_itoa_s(str.GetLength(), ca, 10);
str = ca;
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_BITS_Q))->SetWindowText(str);
}
//随机计算密钥
void CRSADlg::OnBnClickedRandomKey()
{
CBigInt n1, p, q, cbi_t, cbi_t2, tmp1, tmp2;
CString str;
int key_length, prime_bits_p, prime_bits_q, sign;
((CEdit*) GetDlgItem(IDC_EDIT_KEY_LENGTH))->GetWindowText(str);
key_length = _ttoi(str);
//str.Format(TEXT("%d"), key_length);
//MessageBox(str, TEXT("结果"), MB_OK);
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_BITS_P))->GetWindowText(str);
prime_bits_p = _ttoi(str);
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_BITS_Q))->GetWindowText(str);
prime_bits_q = _ttoi(str);
if (key_length < 1 || prime_bits_p < 1 || prime_bits_q < 1){
MessageBox(TEXT("请输入公钥长度和随机素数的位数！"), TEXT("错误"), MB_OK);
return;
}
str = random_prime(prime_bits_p);
p = p.InPutFromStr(str);
cbi_t.Mov(2);
while(true){
if (cbi_t.Cmp(cbi_t.Mon(p, p)) == 0 || (p.Cmp(2) == 0))
break;
p.Add(1);
if (p.Cmp(pow(10, prime_bits_p)) != -1){
str = random_prime(prime_bits_p);
p.~CBigInt();
p = p.InPutFromStr(str);
}
}
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_P))->SetWindowText(p.getResult());
str = random_prime(prime_bits_q);
q = q.InPutFromStr(str);
cbi_t.Mov(2);
while(true){
if (cbi_t.Cmp(cbi_t.Mon(q, q)) == 0 || (q.Cmp(2) == 0))
if (p.Cmp(q) != 0)
break;
q.Add(1);
if (q.Cmp(pow(10, prime_bits_q)) != -1){
str = random_prime(prime_bits_q);
q.~CBigInt();
q = q.InPutFromStr(str);
}
}
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_Q))->SetWindowText(q.getResult());
n.~CBigInt();
n.Mov(p);
n.Mul(q);
n1.Mov(p.Sub(1));
n1.Mul(q.Sub(1));
str = random_prime(key_length);
e.~CBigInt();
e = e.InPutFromStr(str);
cbi_t.Mov(2);
sign = 0;
while(true){
if (cbi_t.Cmp(cbi_t.Mon(e, e)) == 0 || (e.Cmp(2) == 0)){
cbi_t2.Mov(e);
if (n1.Mon(cbi_t2.Sub(1), e).Cmp(1) == 0)
if (e.Cmp(n) == -1)
break;
}
e.Add(1);
if (e.Cmp(pow(10, key_length)) != -1){
if (sign = 1000000){
((CEdit*) GetDlgItem(IDC_EDIT_PUBLIC_KEY_PRIME_E))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PRIVATE_KEY_PRIME_D))->SetWindowText(TEXT(""));
MessageBox(TEXT("根据p和q随机计算了e 1000000次还未算出，可能不存在符合条件的素数e，请重新随机计算！"), TEXT("错误"), MB_OK);
return;
}
str = random_prime(key_length);
e.~CBigInt();
e = e.InPutFromStr(str);
sign++;
}
}
((CEdit*) GetDlgItem(IDC_EDIT_PUBLIC_KEY_PRIME_E))->SetWindowText(e.getResult());
d.~CBigInt();
d = e.Euc(n1);
((CEdit*) GetDlgItem(IDC_EDIT_PRIVATE_KEY_PRIME_D))->SetWindowText(d.getResult());
}
//加密数据
void CRSADlg::OnBnClickedButtonEncrypt()
{
CString str, des;
if (d.Cmp(0) == 0){
MessageBox(TEXT("请先计算私钥d，否则后果自负。。"), TEXT("严重警告"));
return;
}
((CEdit*) GetDlgItem(IDC_EDIT_PLAINTEXT))->GetWindowText(str);
if (str.GetLength() < 1){
MessageBox(TEXT("请输入要加密的东东。。。（︶︿︶）"), TEXT("提示"));
return;
}
des = RSAcalculate(str, true);
((CEdit*) GetDlgItem(IDC_EDIT_CIPHERTEXT))->SetWindowText(des);
}
//解密数据
void CRSADlg::OnBnClickedButtonDecrypt()
{
CString str, des;
if (d.Cmp(0) == 0){
MessageBox(TEXT("请先计算私钥d，否则后果自负。。"), TEXT("严重警告"));
return;
}
((CEdit*) GetDlgItem(IDC_EDIT_CIPHERTEXT))->GetWindowText(str);
if (str.GetLength() < 1){
MessageBox(TEXT("请输入要解密的东东。。。（︶︿︶）"), TEXT("提示"));
return;
}
des = RSAcalculate(str, false);
((CEdit*) GetDlgItem(IDC_EDIT_PLAINTEXT))->SetWindowText(des);
}
//随机出素数，a为位数
CString CRSADlg::random_prime(int a)
{
CString str;
int i, t, len = a;
//rand(); //不加这个，第一位很难改变，原因估计与time有关
t = 1+(10-1)*rand()/(RAND_MAX + 1.0);
str = (char)(t + 48);
for (i = 1; i < a; ++i){
t = 10*rand()/(RAND_MAX + 1.0);
str += (char)(t + 48);
}
return str;
}
//清空所有输入输出
void CRSADlg::OnBnClickedClearall()
{
((CEdit*) GetDlgItem(IDC_EDIT_KEY_LENGTH))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_BITS_P))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_BITS_Q))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_P))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PRIME_Q))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PUBLIC_KEY_PRIME_E))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PRIVATE_KEY_PRIME_D))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_PLAINTEXT))->SetWindowText(TEXT(""));
((CEdit*) GetDlgItem(IDC_EDIT_CIPHERTEXT))->SetWindowText(TEXT(""));
n.~CBigInt();
e.~CBigInt();
d.~CBigInt();
}
//明文字符串
void CRSADlg::OnBnClickedRadioPlainString()
{
plainRadio = 0;
OnBnClickedButtonDecrypt();
}
//明文16进制
void CRSADlg::OnBnClickedRadioPlainHex()
{
plainRadio = 1;
OnBnClickedButtonDecrypt();
}
//明文10进制
void CRSADlg::OnBnClickedRadioPlainDec()
{
plainRadio = 2;
OnBnClickedButtonDecrypt();
}
//密文字符串
void CRSADlg::OnBnClickedRadioCipherString()
{
cipherRadio = 0;
OnBnClickedButtonEncrypt();
}
//密文16进制
void CRSADlg::OnBnClickedRadioCipherHex()
{
cipherRadio = 1;
OnBnClickedButtonEncrypt();
}
//密文10进制
void CRSADlg::OnBnClickedRadioCipherDec()
{
cipherRadio = 2;
OnBnClickedButtonEncrypt();
}
//将一个16进制字符转为对应的10进制数
int CRSADlg::HEXtoDEC(char a)
{
int b;
if (a >= 'a' && a <= 'f')
b = (int)a - 87;
else if (a >= 'A' && a <= 'F')
b = (int)a - 55;
else if (a >= '0' && a <= '9')
b = (int)a - 48;
else
b = 0;
return b;
}
//将一个10进制数转为对应的16进制字符
char CRSADlg::DECtoHEX(int a)
{
char b;
if (a >= 0 && a <= 9)
b = a + 48;
else if (a >= 10 && a <= 15)
b = a + 55;
else
b = 0;
return b;
}
//加密，解密的具体实现
CString CRSADlg::RSAcalculate(CString str, bool isEncrypt)
{
CString des, s1, s2;
CBigInt m, c, tmp;
__int64 i, j, a, b, ach, byte2;
if (isEncrypt){
if (plainRadio == 0 || plainRadio == 1){
if (plainRadio == 1){
if (!isCorrectFormat(str, 1)){
::MessageBox(NULL, TEXT("输入的明文字符串不是十六进制数！！请重新输入！！"), TEXT("错误"), MB_OK);
return NULL;
}
}
if (plainRadio == 0){
s1 = str;
str.Empty();
for (j = 0; j < s1.GetLength(); ++j){
s2.Format(TEXT("%x"), (int)s1[j]);
str += s2;
}
}
a = HEXtoDEC(str[0]);
b = HEXtoDEC(str[1]);
ach = a*16 + b;
m.~CBigInt();
m.Mov(ach);
for (i = 2; i < str.GetLength(); ++i){
m.Mul(16);
m.Mul(16);
a = HEXtoDEC(str[i]);
i++;
b = HEXtoDEC(str[i]);
ach = a*16 + b;
m.Add(ach);
}
} else if (plainRadio == 2){
if (!isCorrectFormat(str, 2)){
::MessageBox(NULL, TEXT("输入的明文字符串不是十进制数！！请重新输入！！"), TEXT("错误"), MB_OK);
return NULL;
}
m = m.InPutFromStr(str);
}
if (m.Cmp(n) == 1){
::MessageBox(NULL, TEXT("素数p，q太小，要加密的数据大于n！！\n请重新输入要加密的数据或者更改p和q！"), TEXT("错误"), MB_OK);
return NULL;
}
c = m.Mon(e, n);
if (cipherRadio == 0 || cipherRadio == 1) {
s1.Empty();
s2.Empty();
tmp.Mov(c);
for (; tmp.Cmp(0) != 0; ){
byte2 = tmp.Mod(256);
tmp.Div(256);
/*_itoa_s(byte2, ca, 10);
s2 = ca;
MessageBox(s2);*/
if (cipherRadio == 0){
s1 += (char)byte2;
} else {
s2.Format(TEXT("%x"), (int)byte2);
if (s2.GetLength() == 2)
{
s1 += s2[1];
s1 += s2[0];
} else {
s1 += s2[0];
s1 += '0';
}
s1.MakeUpper();
}
}
str.Empty();
for (i = s1.GetLength(); i > 0; --i){
str += s1[i-1];
s2 = s1[i-1];
}
} else if (cipherRadio == 2) {
str = c.getResult();
}
//::MessageBox(NULL, str, TEXT(""), MB_OK);
return str;
} else {
if (cipherRadio == 0 || cipherRadio == 1){
if (cipherRadio == 1){
if (!isCorrectFormat(str, 1)){
::MessageBox(NULL, TEXT("输入的密文字符串不是十六进制数！！请重新输入！！"), TEXT("错误"), MB_OK);
return NULL;
}
}
if (cipherRadio == 0){
s1 = str;
str.Empty();
for (j = 0; j < s1.GetLength(); ++j){
s2.Format(TEXT("%x"), (int)s1[j]);
str += s2;
}
}
a = HEXtoDEC(str[0]);
b = HEXtoDEC(str[1]);
ach = a*16 + b;
c.~CBigInt();
c.Mov(ach);
for (i = 2; i < str.GetLength(); ++i){
c.Mul(16);
c.Mul(16);
a = HEXtoDEC(str[i]);
i++;
b = HEXtoDEC(str[i]);
ach = a*16 + b;
c.Add(ach);
}
} else if (cipherRadio == 2){
if (!isCorrectFormat(str, 2)){
::MessageBox(NULL, TEXT("输入的密文字符串不是十进制数！！请重新输入！！"), TEXT("错误"), MB_OK);
return NULL;
}
c = c.InPutFromStr(str);
}
if (c.Cmp(n) == 1){
::MessageBox(NULL, TEXT("素数p，q太小，要解密的数据大于n！！\n请重新输入要解密的数据或者更改p和q！"), TEXT("错误"), MB_OK);
return NULL;
}
m = c.Mon(d, n);
if (plainRadio == 0 || plainRadio == 1) {
s1.Empty();
s2.Empty();
tmp.Mov(m);
for (; tmp.Cmp(0) != 0; ){
byte2 = tmp.Mod(256);
tmp.Div(256);
/*_itoa_s(byte2, ca, 10);
s2 = ca;
MessageBox(s2);*/
if (plainRadio == 0){
s1 += (char)byte2;
} else {
s2.Format(TEXT("%x"), (int)byte2);
if (s2.GetLength() == 2)
{
s1 += s2[1];
s1 += s2[0];
} else {
s1 += s2[0];
s1 += '0';
}
s1.MakeUpper();
}
}
str.Empty();
for (i = s1.GetLength(); i > 0; --i){
str += s1[i-1];
s2 = s1[i-1];
}
} else if (plainRadio == 2) {
str = m.getResult();
}
return str;
}
}
//判断字符串是否符合指定格式
bool CRSADlg::isCorrectFormat(CString str, int form)
{
if (form == 1)
return (str == str.SpanIncluding(TEXT("0123456789ABCDEFabcdef")));
else if (form == 2)
return (str == str.SpanIncluding(TEXT("0123456789")));
return false;
}
- RSA加解密_vs2012_.zip (5.1 MB)
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