//+------------------------------------------------------------------+
//| ArrayToHex |
//+------------------------------------------------------------------+
string ArrayToHex(uchar &arr[],int count=-1)
{
string res="";
//--- check
if(count<0 || count>ArraySize(arr))
count=ArraySize(arr);
//--- transform to HEX string
for(int i=0; i<count; i++)
res+=StringFormat("%.2X",arr[i]);
//---
return(res);
}
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart()
{
string text="The quick brown fox jumps over the lazy dog";
string keystr="ABCDEFG";
uchar src[],dst[],key[];
//--- prepare key
StringToCharArray(keystr,key);
//--- copy text to source array src[]
StringToCharArray(text,src);
//--- print initial data
PrintFormat("Initial data: size=%d, string='%s'",ArraySize(src),CharArrayToString(src));
//--- encrypt src[] with DES 56-bit key in key[]
int res=CryptEncode(CRYPT_DES,src,key,dst);
//--- check error
if(res>0)
{
//--- print encrypted data
PrintFormat("Encoded data: size=%d %s",res,ArrayToHex(dst));
//--- decode dst[] to src[]
res=CryptDecode(CRYPT_DES,dst,key,src);
//--- check error
if(res>0)
{
//--- print decoded data
PrintFormat("Decoded data: size=%d, string='%s'",ArraySize(src),CharArrayToString(src));
}
else
Print("Error in CryptDecode. Error code=",GetLastError());
}
else
Print("Error in CryptEncode. Error code=",GetLastError());
} |