25 best Java Encryption libraries in 2024

Java Encryption Libraries enable password encryption, digital signatures, secure random number generation, message authentication, and 2FA. 

Encryption, decryption, and key generation are the three most crucial aspects of Java cryptography. Key-based data security can be enabled in two ways, using symmetric or asymmetric encryption algorithms, considering how secure the code needs to be. Moreover, developers can easily enable security functions directly into the code with the set of APIs available in the Java Cryptography Architecture (JCA). The JCA is the core of java encryption and decryption, hashing, secure random, and various other java cryptographic functions.

Check out the below list to find more trending Java encryption libraries for your applications:

tink  

• Offers various cryptographic functions like encryption, digital signatures, and more.  
• Provides an easy-to-use interface, simplifying the implementation of robust security measures.  
• Follows best practices, minimizing the chance of security vulnerabilities in cryptographic operations.  

bc-java  

• Provides various encryption, signatures, and hashing algorithms.  
• Offers flexible options for cryptographic operations to suit various protocols.  
• Seamlessly integrates into Java applications for strong security features.

jasypt  

• Supports many encryption methods for tailored security.  
• Seamlessly integrates encryption features into Java codebases.  
• Allows easy setup of encryption configurations for different use cases.  

cryptomator  

• Encrypts files before uploading them to the cloud, keeping data private.  
• Can easily access encrypted files and work with your data as usual.  
• Enables secure file storage and access from different environments.  

Aegis  

• Offers authenticated encryption schemes, ensuring both data confidentiality and integrity.  
• Provides a user-friendly and straightforward API for implementing cryptographic operations.  
• Is lightweight and easy to carry, so it works well in limited environments or small systems.  

mockserver  

• Facilitates creating mock servers for testing and simulating HTTP/HTTPS interactions.  
• Setting precise expectations for requests and responses helps thoroughly test API interactions.  
• Can save API requests to reuse in tests for accuracy and reproducibility.  

hawk  

• Offers a strong MAC algorithm for verifying the integrity and authenticity of messages.  
• Utilizes an authorization header to transmit authentication information, enhancing security securely.  
• Works across various platforms and languages, allowing integration into different applications and systems.  

GDA-android-reversing-Tool  

• Can learn about Android apps by analyzing them using reverse engineering.  
• Helps analyze and break down the code of Android apps for inspection.  
• The graphical interface makes it easy to use the reverse engineering features.  

wycheproof  

• Enables testing cryptographic algorithms and libraries for known security vulnerabilities and weaknesses.  
• Have many cryptography test cases to ensure it works well in different situations.  
• Helps confirm if cryptographic implementations work well on different platforms and libraries.  

bt  

• Can share files, reducing the need for central servers and speeding up downloads.  
• To speed up downloads, it uses a method called "swarming." This method collects small pieces from many sources simultaneously.  
• The protocol will download from other sources if a source is unavailable. This ensures that downloads are uninterrupted and strong.  

Peergos  

• Provides strong file encryption, ensuring data privacy and security from unauthorized access.  
• Users gain control over their data. They can securely share files and manage access permissions.  
• It uses a network not centered in one place to save and find files. This makes it so we don't have to rely on one main server, which helps ensure the data is always there and strong.  

i2p.i2p  

• Let users browse websites and send messages without showing their IP addresses.  
• Uses powerful encryption to keep data safe and secure when it's sent.  
• The routing mechanism is not centralized. This makes it difficult for others to track online activities.  

secure-preferences  

• We use encryption to protect private information from people who shouldn't see it.  
• It works with Android's SharedPreferences API. This means you can easily use secure data storage without changing much code.  
• The app protects sensitive information, reducing the risk of data breaches or leaks. It enhances user privacy.  

AndroidWM  

• Can add personalized watermarks to images, improving branding and ownership recognition.  
• Can choose where the watermark goes, how big it is, how see-through it is, and what it looks like.  
• Can process many images together, which makes it simpler to add watermarks to them.  

Cipher.so  

• Can easily use native code for cryptography in Android apps.  
• Optimized cryptographic algorithms for efficient and secure data encryption and decryption.  
• Supports various encryption and decryption methods, enabling customization based on specific security requirements.  

conscrypt  

• Uses many different ways to keep data safe when encrypted or sent.  
• Offers up-to-date TLS and SSL protocol versions for secure network communication.  
• Ensures compatibility with older Android versions, allowing applications to maintain security across devices.  

react-native-sensitive-info  

• Can securely store sensitive information like passwords or tokens.  
• Compatible with both Android and iOS, ensuring consistent security practices across different platforms.  
• Utilizes encryption mechanisms to protect sensitive data from unauthorized access.  

android-storage  

• Simplifies data storage and retrieval tasks in Android apps, promoting efficient data handling.  
• Offers the option to encrypt files stored on the device, enhancing data security.  
• Can focus on how things work instead of how things are stored.  

whorlwind  

• Offer tools to protect data when stored and transferred, ensuring it stays safe.  
• Supports various encryption algorithms for different security needs.  
• Designed for use across various platforms, promoting consistent security practices.  

encrypt  

• Enables encryption and decryption operations within Android applications.  
• Supports many encryption algorithms, offering flexibility in choosing the appropriate method.  
• Simplifies the process of implementing encryption-related functionalities.  

java-aes-crypto  

• Offers AES encryption and decryption capabilities, a widely used symmetric encryption algorithm.  
• Provides mechanisms for secure key generation and management within Java applications.  
• Supports cryptographic modes that ensure both data confidentiality and integrity.  

Android-Goldfinger  

• Facilitates fingerprint-based authentication and access control in Android apps.  
• Enhances user security by integrating biometric authentication.  
• Offers a user-friendly interface for integrating fingerprint-related functionalities.  

AESCrypt-Android  

• Implements AES encryption and decryption for protecting sensitive data in Android applications.  
• Provides straightforward methods for incorporating AES cryptography into your code.  
• Enables users to store and transmit sensitive information securely.  

Secured-Preference-Store  

• Enhances SharedPreferences with encryption, safeguarding sensitive user preferences.  
• Offers a seamless way to integrate secure preference storage without extensive code modifications.  
• Prevents unauthorized access to preference data by implementing encryption mechanisms.  

EncryptedPreferences  

• Integrates secure storage mechanisms for sensitive preferences in Android apps.  
• Implements encryption to prevent data exposure or tampering.  
• Provides an API for easily incorporating encrypted preference storage in Android projects.  

FAQ

What are Java encryption Libraries, and what basic encryption capabilities do they provide?  

Java encryption libraries are tools used to improve data security in Java applications. They help implement cryptographic techniques. They offer:  

• AES (Advanced Encryption Standard): Symmetric encryption for secure data transmission.  
• RSA (Rivest–Shamir–Adleman): Asymmetric encryption for secure key exchange and digital signatures.  
• Hashing Algorithms: Generate secure hash codes to verify data integrity.  
• Digital Signatures: Authenticate data origin and verify integrity.  
• Key Management: Generate, store, and handle encryption keys.  
• SSL/TLS: Implement secure communication over networks.  
• PGP (Pretty Good Privacy): Encrypt and decrypt data for privacy.  

How can password encryption be achieved using Java libraries?  

In Java, you can encrypt passwords using JCA or third-party libraries. Hashing algorithms, such as bcrypt and SHA-256, convert passwords into irreversible codes. To keep user credentials safe, adding salt and storing them securely is important. This helps to prevent attacks and maintain confidentiality.  

Are digital signatures supported by any of the Java encryption libraries?  

Yes, digital signatures are supported by various Java encryption libraries. Java Cryptography Architecture (JCA) libraries enable the creation and verification of digital signatures. They use algorithms like RSA for asymmetric encryption. Digital signatures are important in Java applications for secure communication and authentication. They ensure data is authentic, integral, and cannot be denied. Bouncy Castle and other Java libraries can help with digital signatures and cryptography.  

What is an encryption key, and how is it used to encrypt and decrypt data securely?  

An encryption key is a special code that turns normal data into secret code and back again. It decides how data is changed so only authorized people with the right key can see it. Strong key management is essential to maintain data security and prevent unauthorized access.   

Encryption keys are crucial for secure communication. Data is kept safe from unauthorized access. This happens when it's being transmitted or stored.  

Can you create a Message Authentication Code using a popular Java encryption library?  

Developers can use algorithms, such as HMAC from JCA, to implement MAC for security. The sender creates a code that receivers can check using a secret key. This process ensures data is correct and information is secure when sent.  

Is there an easy way to generate cipher text from plain text using a library written in Java?  

Java has libraries like JCA that help turn plain text into secret code. Developers can change plain text into cipher text. They do this by choosing an encryption algorithm, such as AES, and using a secret key. They can do this through straightforward method calls. Java applications can securely transmit and store data while keeping it confidential. Developers can easily add strong encryption using these libraries without needing complex coding.