Security

2023

Sharing encrypted data over short-form mediums

24 July 2023·1325 words·7 mins

Programming Security Encryption Cryptography

Sharing large amounts of data over short-form mediums like QR codes or NFC tags can be challenging. The data needs to be encrypted to ensure confidentiality, but packing useful data into a small space is difficult.

Distributed Trust with Service-to-Service Authentication

15 July 2023·1340 words·7 mins

Programming Security

In Service-oriented Architectures (SOA) the “services” are the fundamental building blocks of your application. Authenticating requests between services is a challenge.

2020

Token invalidation in distributed systems

8 February 2020·711 words·4 mins

Security

Building fast systems can be tricky and distributed computing is often the approach taken to improve performance. This introduces unique challenges in the realm of security - specifically handling Authentication & Authorization. OAuth 2’s JSON Web Tokens solve this but introduce risks with revocation.

2016

Let's Encrypt - time to get serious about TLS

10 April 2016·253 words·2 mins

Security

Let’s Encrypt is a new Certificate Authority that’s serious about democratizing SSL on the internet.