A standalone Java 7 implementation of HMAC-based key derivation function (HKDF) defined in RFC 5869 first described by Hugo Krawczyk. HKDF follows the "extract-then-expand" paradigm which is compatible to NIST 800-56C Rev. 1 two step KDF

🔑 A Java utility that form HTTP Authorization request header for API authentication

Salmon is an AES-256 encryption library with built-in integrity, parallel operations, and seekable stream support. It provides a high level API for encrypting data, streams, and a virtual drive API for encrypting files. Salmon is powered by a fast native library for Intel x86_64 and ARM64.

Simple Android lottery game (Java) that uses cryptography concepts such as: HMAC-SHA256, HMAC-SHA512, AES-128-CBC, AES-128-CTR

PayPal PSP API Integration Project: Project focusing on integrating PayPal as a Payment Service Provider (PSP) into an e-commerce platform, streamlining the checkout and payment process for both customers and merchants. The project aimed to offer a secure and seamless payment experience by leveraging PayPal’s extensive

HMAC SHA256 generation in Java and Python

An ugly blob container

Information-and-network-security Algorithms for Encryption.

A library for verifying Zoom webhook events through the x-zm-signature and x-zm-request-timestamp headers.

A client-server, multi-threaded. secure instant messenger. Provides confidentiality, integrity, and authentication (CIA)

Spring boot Hmac Authentication for CRUD APIs

End to end encrypted application using signal protocol

hmacsha256 implementation using sprinng boot

This repo is for AES-Encryption in java.