今天做了一個文字加密演算法, 由於是這個演算法是基於演算法保密的,沒有祕鑰,所有隻能應付安全要求不高的需求,

效果圖如下

原文1
201411210H0g//60609.820
密文1
{*<P^o!1ARcw%8MXoz4;=fm i

原文2
201411210ab1234/32d fds
密文2
s"4HVgy)9J[o}0EPgs#35^Fxa

每次加密一行資料!!
希望大家喜歡

//strOut必須為可列印字元0x20 -- 0x7F
//strOut必須以'\0'結尾,
//加密效果較好 By Sols
// 加密結果為可列印字元0x20 -- 0x7F
void EnCodeStr(char *strOut)
{
	int randOffset = rand()%96;
	int ResChar ;
	int i=0;
	for (;strOut[i] != '\0';i++)
	{
		ResChar = randOffset + strOut[i] + i*17;//17可以為其他合適的數字
		while ( ResChar > 127)
		{
			ResChar -= 96;
		}
		strOut[i] = (char)ResChar;
	}
	strOut[i++] =(char)( randOffset + 32 );
	strOut[i] = '\0';
}
//strOut必須為可列印字元 0x20 -- 0x7F
//strOut必須以'\0'結尾,
void DeCodeStr(char *strCode)
{
	int KeyIndex = 0;
	if (strCode[0] == '\0')  return;
	while( strCode[KeyIndex] != '\0')
	{
		KeyIndex++;
	}
	int Key = (int)(strCode[KeyIndex-1]) - 32;
	int ResChar ;
	int i=0;
	for ( ;strCode[i] != '\0';i++)
	{
		ResChar = strCode[i] - Key - i*17;
		while ( ResChar < 32)
		{
			ResChar += 96;
		}
		strCode[i] = (char)ResChar;
	}
	strCode[i-1] = '\0';
}