JFXCrypto

Description

JFXCrypto is a flexible cryptographic tool designed to handle a wide range of encryption tasks. Featuring modern GUI, it supports over 150 encryption algorithms, spanning from ancient Greek ciphers to modern algorithms adopted by the US military and NSA.

Features

• Utilize hundreds of available encryption algorithms through the Bouncy Castle library. See full list below.
• Rich toolkit for encrypting text or files with support for variable key lengths, modes (ECB, CBC, CFB, OFB), various paddings (PKCS5Padding, PKCS7Padding, ISO10126Padding), and integration of salts and IVs for enhanced security.
• Generate hashes for text and files, and utilize HMAC (Hash-based Message Authentication Code) for data integrity verification.
• Includes a collection of classic ciphers and ciphers from World Wars (See full list below)
• Modern graphical interface powered by atlantafx library with support for multiple themes, animations, and icons, enhanced with an MVVM architecture.
• Asynchronous operations, leveraging NIO 2 for efficient file handling and processing.
• Specialized password generation tool based on PBKDF2 for modern and secure password hashing.
• Password complexity and strength analysis using the zxcvbn4j library.
• Utilizes the Have I Been Pwned API with k-anonymity model to check if the password has been exposed in data breaches.

Usage

1. Download the latest release JAR file
2. ```bash java --module-path path/to/javafx-sdk/lib --add-modules javafx.controls,javafx.fxml -jar simple-java-crypter-.jar

The build requires JDK 17 or later.

MVVM Architecture

The MVVM (Model-View-ViewModel) architecture separates the user interface (View) from the business logic and data (Model) by using a ViewModel. Using data bindings and event handling, it improves code organization and makes faster reactive GUI.

Block Cipher modes of Operation

CBC (Cipher Block Chaining)

Cipher Block Chaining (CBC) links each plaintext block with the previous ciphertext block using XOR before encryption, enhancing security by ensuring identical plaintext blocks yield different ciphertext blocks. Pros: High security due to chaining; protects against pattern recognition. Cons: Requires an IV; sequential processing limits parallelism.

ECB (Electronic Codebook)

Electronic Codebook (ECB) encrypts each plaintext block independently with the same key. Pros: Simple implementation; allows parallel processing of blocks. Cons: Low security; identical plaintext blocks produce identical ciphertext, making it vulnerable to pattern analysis.

CFB (Cipher Feedback)

Cipher Feedback (CFB) turns a block cipher into a stream cipher, encrypting small plaintext segments. Pros: Suitable for streaming data; no need for padding. Cons: Requires an IV; sequential processing prevents parallel encryption.

OFB (Output Feedback)

Output Feedback (OFB) mode converts a block cipher into a synchronous stream cipher by encrypting an IV and XORing the result with plaintext. Pros: Error propagation is limited to the corresponding ciphertext segment; suitable for streaming. Cons: Requires an IV; vulnerable to known plaintext attacks if the same IV is reused.

CTR (Counter)

Counter (CTR) mode encrypts a counter value for each block and XORs it with plaintext, allowing blocks to be processed independently. Pros: Enables parallel encryption; no need for padding. Cons: Requires a unique counter for each block to ensure security.

Supported algorithms

Screenshots

Contributing and support

Feel free to contribute by opening issues or creating a pull request. Any help is appreciated :)