There other day I needed to encrypt certain properties in our XML configuration files. But there were few challanges that needed to be addressed Use existing Java installation !!! How will Master Encryption Key be derives and stored !!! First restriction is very important as it limits us to what algorithmic and key sizes can …
Encrypting application configuration files – Java AES Read More »
Leptonica provides us with easy way to read barcodes but it does not offer a way to create them(as far as I know). Here is a leptonica function that will allow us to generate CODABAR barcode, in the feature I am planning on adding more type and more options but for now this was all …
Using popcnt instruction found on newer processors to get population count which is number of set bits. Reference : SSE4 Here are couple example inputs with expected output. 0xA = 1010 — > 2 0x3F2 = 1111110010 — > 7 #include <iostream> #include <stdio.h> using namespace std; int main() { // 0xA = …
Population Count using popcnt instruction (counting number of on bits) Read More »
