Sachin Lala sachinlala

Language / Platform	Function / Method & Usage
Java ☕	`MessageDigest.isEqual(byte[], byte[])` This static method securely compares two byte arrays in constant time. Always convert strings to byte arrays with a consistent encoding (e.g., UTF-8) before comparison.
JavaScript (Node.js) 📜	`crypto.timingSafeEqual(Buffer, Buffer)` Node.js provides this dedicated function in its crypto module. True constant-time comparison is difficult in browsers, so sensitive comparisons should be handled server-side.
Python 🐍	`hmac.compare_digest(bytes, bytes)` This function securely compares two byte strings in a constant-time manner to prevent timing attacks. Ensure your inputs are byte strings.
Go 🐹	`crypto/subtle.ConstantTimeCompare(a, b []byte)`Go's standard library provides this function for constant-time byte slice comparison. It returns 1 if the slices are equal and

There are 3 plugins for generating to create a JAR-File in maven:

maven-jar-plugin
maven-assembly-plugin
maven-shade-plugin

maven-jar-plugin:This plugin provides the capability to build and sign jars.But it just compiles the java files under src/main/java and /src/main/resources/.It doesn't include the dependencies JAR files.

<!--exclude all xml files from the jar-->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>

	import java.util.ConcurrentModificationException;
	import java.util.concurrent.ExecutorService;
	import java.util.concurrent.Executors;
	import java.util.concurrent.TimeUnit;

	/**
	* Asynchronous Queue
	*<p>
	* Article at: https://www.digitalturbine.com/blog/java-class-for-easy-multithreaded-loops/
	*<p>


	import static org.hamcrest.MatcherAssert.assertThat;
	import static org.hamcrest.Matchers.equalTo;

	import java.io.File;
	import java.io.IOException;
	import java.io.OutputStream;
	import java.nio.charset.StandardCharsets;
	import java.util.Arrays;

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	import java.util.List;

	/*
	* Test program to show how to remove warnings from generic array construction.
	* First step: Remove any raw types, by adding <?> as needed.
	* Second step: Add a cast if needed, to the specific non-wildcard type.
	* Third step: Suppress "unchecked" warnings on the cast.
	* The point of the first step is to remove the "rawtypes" warning
	* cleanly, without resorting to an additional warning suppression.
	* Note that every use of @SuppressWarnings should have a comment.