base64加密函数

//base64加密函数

string Encode(const unsigned char* Data, int DataByte)

//编码表

const char EncodeTable[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; //返回值

string strEncode;

unsigned char Tmp[4] = { 0 };

int LineLength = 0;

for (int i = 0; i < (int)(DataByte / 3); i++)

{

Tmp[1] = *Data++;

Tmp[2] = *Data++;

Tmp[3] = *Data++;

strEncode += EncodeTable[Tmp[1] >> 2];

strEncode += EncodeTable[((Tmp[1] << 4) | (Tmp[2] >> 4)) & 0x3F];

strEncode += EncodeTable[((Tmp[2] << 2) | (Tmp[3] >> 6)) & 0x3F];

strEncode += EncodeTable[Tmp[3] & 0x3F];

//换⾏，如果需要⽤到加密数据，需要注释掉

//if (LineLength += 4, LineLength == 76){ strEncode += "\r\n"; LineLength = 0; }

}

//对剩余数据进⾏编码

int Mod = DataByte % 3;冰鞋座

if (Mod == 1)

家用智能控制系统{

Tmp[1] = *Data++;

strEncode += EncodeTable[(Tmp[1] & 0xFC) >> 2];

strEncode += EncodeTable[((Tmp[1] & 0x03) << 4)];

strEncode += "==";

}导电碳油

else if (Mod == 2)

{

Tmp[1] = *Data++;

Tmp[2] = *Data++;

牵引头strEncode += EncodeTable[(Tmp[1] & 0xFC) >> 2];

strEncode += EncodeTable[((Tmp[1] & 0x03) << 4) | ((Tmp[2] & 0xF0) >> 4)];

strEncode += EncodeTable[((Tmp[2] & 0x0F) << 2)];

37iiistrEncode += "=";

}

return strEncode;

}

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