I'm going to do a calculator in WeChat small programs, there is only one input box and a box, the user to enter a number in the input box password (after 6 to 12) point calculation button, the system will be based on the password with the current time do parameter values, use TEA algorithm calculates a new password, valid for 15 minutes, here is to write a good C code, want to do it encapsulated into a DLL call again, but WeChat small program is the server, in WeChat DLL is won't make upload and use casually! Which master can write this function into can be directly in tiny WeChat program code, all sent!!!!!!

Test. The c source code is as follows:
//========================================, using the algorithm of TEA only scroll password function========================================================================================================================
# define mSecDataTempPd 0 x5aa555aa
Const DWORD coSecDataTempPd=(mSecDataTempPd ^ 0 x9e3779b9);
Const DWORD coKeyTempPd []={xa7469115 x126f2e1b 0, 0 xd1ef3da9, 0, 0 x6d83ea82};

/* -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
PData_fGet1TimePd management password (input), 6-12, unsigned character array, the array length 12 bytes, two mechanisms, for example, the password is 123456, then input for {0 x01, 0 x02, 0 x03, 0 x04, 0 x05, 0 x06, 0 XFF, 0 XFF, 0 XFF, 0 XFF, 0 XFF, 0 XFF}
DTime_fGet1TimePd time to January 1, 1970 0 0 0 seconds to the current time, the experience on the number of seconds, unsigned long variable
PPd_fGet1TimePd temporary password, output, unsigned character array, 8 bytes in length, binary,
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- */
Void fGet1TimePd (BYTE * pData_fGet1TimePd dwords dTime_fGet1TimePd, BYTE * pPd_fGet1TimePd)
{
DWORD dData_fGet1TimePd [2].
BYTE * pTemp_fGet1TimePd=(BYTE *) dData_fGet1TimePd;
BYTE bTemp_fGet1TimePd;

DTime_fGet1TimePd/=_TempPdCyc_;
For (bTemp_fGet1TimePd=0; BTemp_fGet1TimePd & lt; 8; BTemp_fGet1TimePd + +)
{
If (bTemp_fGet1TimePd & lt; 6)
{
PTemp_fGet1TimePd [bTemp_fGet1TimePd]=((pData_fGet1TimePd [bTemp_fGet1TimePd * 2] <4) & amp; 0 xf0) | (pData_fGet1TimePd [bTemp_fGet1TimePd * 2 + 1] & amp; 0 x0f);
}
The else
{
PTemp_fGet1TimePd [bTemp_fGet1TimePd]=0;
}

If (bTemp_fGet1TimePd & gt; 3)
{
PTemp_fGet1TimePd [bTemp_fGet1TimePd] ^=(dTime_fGet1TimePd & gt;> ((7 - bTemp_fGet1TimePd) * 8));
}
}
FEncryptTea (& amp; DData_fGet1TimePd [0], & amp; DData_fGet1TimePd [1]).

For (bTemp_fGet1TimePd=0; BTemp_fGet1TimePd & lt; 8; BTemp_fGet1TimePd + +)
{
PPd_fGet1TimePd [bTemp_fGet1TimePd]=(((pTemp_fGet1TimePd [bTemp_fGet1TimePd] & gt;> 4) & amp; 0 x0f) ^ (pTemp_fGet1TimePd [bTemp_fGet1TimePd] & amp; 0 x0f)) % 10;
}
}

Void fEncryptTea (DWORD * fData1_fEncryptTea, dwords * fData2_fEncryptTea)
{
DWORD dTemp1_fEncryptTea=* fData1_fEncryptTea;
DWORD dTemp2_fEncryptTea=* fData2_fEncryptTea;
DWORD dSum_fEncryptTea=0;
DWORD dDelta_fEncryptTea=coSecDataTempPd ^ mSecDataTempPd;
BYTE bTemp_fEncryptTea;

For (bTemp_fEncryptTea=0; BTemp_fEncryptTea & lt; 8; BTemp_fEncryptTea + +)//8 rounds of operations (need corresponding decryption of the core functions of round number as below)
{
DSum_fEncryptTea +=dDelta_fEncryptTea;
DTemp1_fEncryptTea +=((dTemp2_fEncryptTea & lt; <4) + coKeyTempPd [0]) ^ (dTemp2_fEncryptTea + dSum_fEncryptTea) ^ ((dTemp2_fEncryptTea & gt;> 5) + coKeyTempPd [1]);
DTemp2_fEncryptTea +=((dTemp1_fEncryptTea & lt; <4) + coKeyTempPd [2]) ^ (dTemp1_fEncryptTea + dSum_fEncryptTea) ^ ((dTemp1_fEncryptTea & gt;> 5) + coKeyTempPd [3]);
}

FData1_fEncryptTea [0]=dTemp1_fEncryptTea;
FData2_fEncryptTea [0]=dTemp2_fEncryptTea;
}

Test. H source code is as follows:
# # ifndef _tea_h_
# define _tea_h_

15 * 60 # define _TempPdCyc_ (l)//(local) dynamic password cycle parameters, each time change over the cycle, the dynamic password change a, this parameter in seconds, (15 x60) said 900 s (15 minutes),

Void fEncryptTea (DWORD * fData1_fEncryptTea, dwords * fData2_fEncryptTea);
Void fDecryptTea (DWORD * fData1_fDecryptTea, dwords * fData2_fDecryptTea);


# endif

Algorithms for the calculation of is all the code above, please master into in WeChat small programs can use the language, online, etc., all sent,

CodePudding user response:

No one will be? Hurry!

CodePudding user response:

Online etc.! I wait, wait, wait, and so on

CodePudding user response:

Online said Mandreel tools can automatic conversion, where to download this tool? Looking for half a day also can not find,

CodePudding user response:

The c language program can be written directly. Js file, js support c all operations, differences in c & gt;> Js to change & gt;> The unsigned right shift in unsigned char js to go digital & amp; 0 XFF the rest are all the same

CodePudding user response:

I these days is to use a algorithm of C file into the small program all the jS file, the biggest problem is jS during calculation of large overflow after the problem of inaccurate reaches a certain value of jS not accurate is wrong with bignumber jS library can solve most problems

CodePudding user response:

Which file to change? Is to modify the c language source code, or to modify after emcc compiled to javascript code,

//add c 
#include  
#include  
#include  

Unsigned int LunarCalendarDay; 
Unsigned int LunarCalendarTable [199]=
{
X5526bd x04ae53 0, 0 x0a5748, 0, 0, x0d2650 x0d9544 0, 0 x46aab9, 0 x056a4d, 0 x09ad42, 0 x24aeb6, 0 x04ae4a,/* */1901-1910 
nullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnull