Convert 32-char md5 string to integer

Question

What\'s the most efficient way to convert an md5 hash to a unique integer to perform a modulus operation?

Answer 1

If all you need is modulus, you don't actually need to convert it to 128-byte integer. You can go digit by digit or byte by byte, like this.

mod=0
for(i=0;i<32;i++)
{
   digit=md5[i]; //I presume you can convert chart to digit yourself.
   mod=(mod*16+digit) % divider;
}