/***********加密CString并写入文件(加法加密)************/
CFile fileWrite;
CString
m_strEncryption = _T("需要加密的信息");
int count =
m_strEncryption.GetLength();
BYTE* m_byteRead = new BYTE[count];
BYTE*
m_byteWrite = new BYTE[count*2];
m_byteRead =
(BYTE*)m_strEncryption.GetBuffer(count);
for (int i = 0, k = 0, j = 1; i <
count; i++, k = k + 2, j = j + 2)
{
m_byteWrite[k] =
(byte)((m_byteRead[i] + 参数(密钥)) % 128 + 128);
m_byteWrite[j] =
(byte)((m_byteRead[i] + 参数(密钥)) / 128);
}
if(fileWrite.Open(输出路径, CFile::modeCreate |
CFile::modeWrite))
{
fileWrite.Write(m_byteWrite,count*2);
fileWrite.Write("\r\n",2);
}
fileWrite.Close();
m_strEncryption.ReleaseBuffer();
delete[] m_byteWrite;
PS:解密及其他方式的加密解密可见《凯撒加密/解密算法(C#)》,将其稍作修改就可适用于VC。