In 2017, we started a blog series talking about how to securely implement a crypto-system in java. How to Get Started Using Java Cryptography Securely touches upon the basics of Java crypto, followed by posts around various crypto primitives Cryptographically Secure Pseudo-Random Number Generator (CSPRNG), Encryption/Decryption, and Message Digests. We also released a Java Crypto Module for… READ MORE ›

To complement my recent Java Crypto blog series ("How to get Started Using Java Cryptography Securely", "Cryptographically Secure Pseudo-Random Number Generator (CSPRNG)", "Encryption and Decryption in Java Cryptography", "Message Digests, aka Hashing Functions"), I have been referencing corresponding working code on the GitHub repository. I am happy to announce a brand-new, shiny, modularized,… READ MORE ›

This is the fourth entry in a blog series on using Java cryptography securely. The first entry provided an overview covering architectural details, using stronger algorithms and debugging tips. The second one covered Cryptographically Secure Pseudo-Random Number Generators. The third entry taught you how to securely configure basic encryption/decryption primitives. This post will teach you about… READ MORE ›

This is the third entry in a blog series on using Java cryptography securely. The first entry provided an overview covering architectural details, using stronger algorithms, and debugging tips. The second one covered Cryptographically Secure Pseudo-Random Number Generators. This entry will teach you how to securely configure basic encryption/decryption primitives. This blog series should serve as… READ MORE ›

Skip to the tl;dr This is the second entry in a blog series on using Java cryptography securely. The first entry provided an overview and covered some architectural details, using stronger algorithms and some debugging tips . This entry covers Cryptographically Secure Pseudo-Random Number Generators. This blog series should serve as a one-stop resource for anyone who needs to implement a crypto-… READ MORE ›

Skip to the tl;dr Cryptography is the backbone of today's information systems. Its applications are all around us: secure email communications, storage of our login credentials, digital cash and mobile payments, to name just a few. Cryptography is one of the most complicated topics in information security, but the good news is we already have well-defined algorithms, implementations and protocols… READ MORE ›