## Iranian National Code Algorithm

hello again .

i think this post must be interesting for iranian peoples . this theme is completely ripped from my  friend soroush dalili weblog finally don’t forgot this post and algorithm was published for educational purposes only so author is not held responsible , used for any other purposes than the one stated above. Melli card & code

Each person in Iran has a national code which is called “Code Melli”. And, its algorithm is very similar to ISBN algorithm:

The rules are:

1-  This number has 10 digits like: C C C C C C C C C C

2-  3 digits of left must not be equal to 000 (ccc000)

3-  C is a control digit (like ISBN algorithm)

The formula to determine C is:

Let A = (C*10)+ (C*9)+ (C*8)+ (C*7)+ (C*6)+ (C*5)+ (C*4)+ (C*3)+ (C*2)

Let B = A MOD 11

If B == 0 Then C=B Else C = 11-B

This JavaScript function is useful to validation:

//—————Start of Iranian national code checker function—————

True-False

//Written by Soroush Dalili – October 2008

//——————————————————————————————–

function IsIRNationalCode(theNum)

{

if(theNum.length!=10)

{

return false;

}

else

{

if(theNum.substr(0,3)==’000′) return false;

var check = 0;

for(var i=0;i

{

var num = theNum.substr(i,1);

check += num*(10-i)

}

if(check%11)

{

return false;

}

else

{

return true;

}

}

}

//—————End of Iranian national code checker function—————

True-False

//——————————————————————————————–

good luck and have fun