navneet83/Cross-platform-AES-encryption

Basic cross platform AES encryption

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Step 1. Add the JitPack repository to your build file

Add it in your root settings.gradle at the end of repositories:

	dependencyResolutionManagement {
		repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
		repositories {
			mavenCentral()
			maven { url 'https://jitpack.io' }
		}
	}

Add it in your settings.gradle.kts at the end of repositories:

	dependencyResolutionManagement {
		repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
		repositories {
			mavenCentral()
			maven { url = uri("https://jitpack.io") }
		}
	}

Add to pom.xml

	<repositories>
		<repository>
		    <id>jitpack.io</id>
		    <url>https://jitpack.io</url>
		</repository>
	</repositories>

Add it in your build.sbt at the end of resolvers:

 
    resolvers += "jitpack" at "https://jitpack.io"

Add it in your project.clj at the end of repositories:

 
    :repositories [["jitpack" "https://jitpack.io"]]

Step 2. Add the dependency

	dependencies {
		implementation 'com.github.Pakhee:Cross-platform-AES-encryption:'
	}
	dependencies {
		implementation("com.github.Pakhee:Cross-platform-AES-encryption:")
	}
	<dependency>
	    <groupId>com.github.Pakhee</groupId>
	    <artifactId>Cross-platform-AES-encryption</artifactId>
	    <version></version>
	</dependency>

                            
    libraryDependencies += "com.github.Pakhee" % "Cross-platform-AES-encryption" % ""
        
        

                            
    :dependencies [[com.github.Pakhee/Cross-platform-AES-encryption ""]]

Readme

Cross platform 256bit AES encryption / decryption.

This project contains the implementation of 256 bit AES encryption which works on all the platforms (C#, iOS, Android and Node.js). One of the key objective is to make AES work on all the platforms with simple implementation.

<b>Platforms Supported:</b>

  1. iOS

  2. Android

  3. Windows (C#).

  4. Node.js

<b>Features:</b>

  1. Cross platform support. Encryption-Decryption works across C#, iOS, Android and Node.js.

  2. Support for Random IV (initialization vector) for encryption and decryption. Randomization is crucial for encryption schemes to achieve semantic security, a property whereby repeated usage of the scheme under the same key does not allow an attacker to infer relationships between segments of the encrypted message.

  3. Support for SHA-256 for hashing the key. Never use plain text as encryption key. Always hash the plain text key and then use for encryption. AES permits the use of 256-bit keys. Breaking a symmetric 256-bit key by brute force requires 2^128 times more computational power than a 128-bit key. A device that could check a billion billion (10^18) AES keys per second would in theory require about 3×10^51 years to exhaust the 256-bit key space.

<b>How to encrypt a string:</b>

See code samples for more details. You'll have to perform following steps:

  1. Generate Ramdom IV using the provided randomIV generator function.
  2. Select a secret key and hash it using the provided SHA-256 hash function.
  3. Encrypt your string using the hashed key and random IV.

<b>How to decrypt a string:</b>

See code samples for more details. You'll have to perform following steps:

  1. Get the encrypted text and the randomIV used for encryption
  2. Decrypt the string using the provided decrypt function !