AES Everywhere - Cross Language Encryption Library

AES Everywhere is Cross Language Encryption Library which provides the ability to encrypt and decrypt data using a single algorithm in different programming languages and on different platforms.

This is an implementation of the AES algorithm, specifically CBC mode, with 256 bits key length and PKCS7 padding. It implements OpenSSL compatible cryptography with random generated salt

Java implementation

Installation

Via maven, add in dependencies of your pom.xml:

<dependencies>
  <dependency>
    <groupId>com.github.mervick</groupId>
    <artifactId>aes-everywhere-java</artifactId>
    <version>1.2.7</version>
  </dependency>
</dependencies>

Via gradle, add in dependencies of your build.gradle:

dependencies {
  implementation 'com.github.mervick:aes-everywhere-java:1.2.7'
}

Building from the sources:

mvn package 

Import Aes256 in your project

Java >= 8

import com.github.mervick.aes_everywhere.Aes256;

Android with API level < 26 or Java < 8
(also in case if you get error about java.util.Base64)

import com.github.mervick.aes_everywhere.legacy.Aes256;

Usage

String text = "TEXT";
String pass = "PASSWORD";

byte[] text_bytes = text.getBytes("UTF-8");
byte[] pass_bytes = pass.getBytes("UTF-8");

// strings encryption
String encrypted = Aes256.encrypt(text, pass);
System.out.println(encrypted);

// bytes encryption
byte[] encrypted_bytes = Aes256.encrypt(text_bytes, pass_bytes);
System.out.println(encrypted_bytes);

// strings decryption
String decrypted = Aes256.decrypt(encrypted, pass);
System.out.println(decrypted);

// bytes decryption
byte[] decrypted_bytes = Aes256.decrypt(encrypted_bytes, pass_bytes);
System.out.println(decrypted_bytes);

Known issues

java.security.InvalidKeyException: Illegal key size

This exception throws because of a restriction imposed by the default JDK. On the default JDK installation AES is limited to 128 bit key size.