ntc-jcrypto

ntc-jcrypto is module java cryptography

License	The Apache License, Version 2.0
GroupId	com.streetcodevn
ArtifactId	ntc-jcrypto
Last Version	1.0.2
Release Date	May 26, 2020
Type	jar
Description	ntc-jcrypto ntc-jcrypto is module java cryptography
Project URL	https://github.com/congnghia0609/ntc-jcrypto
Source Code Management	https://github.com/congnghia0609/ntc-jcrypto/tree/master

Download ntc-jcrypto

Filename	Size
ntc-jcrypto-1.0.2.pom
ntc-jcrypto-1.0.2.jar	12 KB
ntc-jcrypto-1.0.2-sources.jar	13 KB
ntc-jcrypto-1.0.2-javadoc.jar	35 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.streetcodevn/ntc-jcrypto/ -->
<dependency>
    <groupId>com.streetcodevn</groupId>
    <artifactId>ntc-jcrypto</artifactId>
    <version>1.0.2</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.streetcodevn/ntc-jcrypto/
implementation 'com.streetcodevn:ntc-jcrypto:1.0.2'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.streetcodevn/ntc-jcrypto/
implementation ("com.streetcodevn:ntc-jcrypto:1.0.2")

Apache Buildr

'com.streetcodevn:ntc-jcrypto:jar:1.0.2'

Apache Ivy

<dependency org="com.streetcodevn" name="ntc-jcrypto" rev="1.0.2">
  <artifact name="ntc-jcrypto" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.streetcodevn', module='ntc-jcrypto', version='1.0.2')
)

Scala SBT

libraryDependencies += "com.streetcodevn" % "ntc-jcrypto" % "1.0.2"

Leiningen

[com.streetcodevn/ntc-jcrypto "1.0.2"]

Dependencies

compile (3)

Group / Artifact	Type	Version
ch.qos.logback : logback-classic	jar	1.2.3
ch.qos.logback : logback-core	jar	1.2.3
org.slf4j : slf4j-api	jar	1.7.30

test (1)

Group / Artifact	Type	Version
junit : junit	jar	4.13

Project Modules

There are no modules declared in this project.

ntc-jcrypto

ntc-jcrypto is module java cryptography

Maven

<dependency>
    <groupId>com.streetcodevn</groupId>
    <artifactId>ntc-jcrypto</artifactId>
    <version>1.0.2</version>
</dependency>

1. An implementation of Shamir's Secret Sharing Algorithm 256-bits in Java

Usage

Use encode/decode Base64

String s = "nghiatcxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
SSS sss = new SSS();
List<String> arr = sss.create(3, 6, s, true);
//System.out.println(arr);
for (int i=0; i<arr.size(); i++) {
    System.out.println("shares["+i+"]: " + arr.get(i));
}

System.out.println("\nsecret: " + s);
System.out.println("secret.length: " + s.length());

String s1 = sss.combine(arr.subList(0, 3), true);
System.out.println("combines shares 1 length = " + arr.subList(0, 3).size());
System.out.println("secret: " + s1);
System.out.println("secret.length: " + s1.length());

String s2 = sss.combine(arr.subList(3, 6), true);
System.out.println("combines shares 2 length = " + arr.subList(3, 6).size());
System.out.println("secret: " + s2);
System.out.println("secret.length: " + s2.length());

String s3 = sss.combine(arr.subList(1, 5), true);
System.out.println("combines shares 3 length = " + arr.subList(1, 5).size());
System.out.println("secret: " + s3);
System.out.println("secret.length: " + s3.length());

Use encode/decode Hex

String s = "nghiatcxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
SSS sss = new SSS();
List<String> arr = sss.create(3, 6, s, false);
//System.out.println(arr);
for (int i=0; i<arr.size(); i++) {
    System.out.println("shares["+i+"]: " + arr.get(i));
}

System.out.println("\nsecret: " + s);
System.out.println("secret.length: " + s.length());

String s1 = sss.combine(arr.subList(0, 3), false);
System.out.println("combines shares 1 length = " + arr.subList(0, 3).size());
System.out.println("secret: " + s1);
System.out.println("secret.length: " + s1.length());

String s2 = sss.combine(arr.subList(3, 6), false);
System.out.println("combines shares 2 length = " + arr.subList(3, 6).size());
System.out.println("secret: " + s2);
System.out.println("secret.length: " + s2.length());

String s3 = sss.combine(arr.subList(1, 5), false);
System.out.println("combines shares 3 length = " + arr.subList(1, 5).size());
System.out.println("secret: " + s3);
System.out.println("secret.length: " + s3.length());

License

This code is under the Apache License v2.

Versions

Version
1.0.2 May 26, 2020
1.0.1 Mar 23, 2020
1.0.0 Jan 7, 2020