Abstract Software is eating the world and today’s businesses demand shipping software features at a higher velocity to enable learning at a greater pace without compromising the quality. However, each new feature increases viscosity of existing code, which can add more complexity and technical debt so the time to market for…

Abstract User identity and authentication is commonly implemented using username and passwords (U/P). Despite wide adoption of password based authentication, they are considered the weakest link in the chain of secure access. The weak passwords and password reuse are common attack vectors for cyber-crimes. Most organizations enforce strong passwords but it…

Web3 term was coined by Ethereum co-founder Gavin Wood to distinguish it from Web2 architecture. The Web2 architecture popularized interactive and interoperable applications, where Web3 architecture adds decentralization based on blockchain for protecting user data and privacy. I came across a number of recent posts [1, 2, 3, 4] lately…

I wrote about support of structured concurrency in Javascript/Typescript, Erlang/Elixir, Go, Rust, Kotlin and Swift last year (Part-I, Part-II, Part-III, Part-IV) but Swift language was still in development for async/await and actors support. The Swift 5.5 will finally have these new concurrency features available, which are described below: Async/Await As described…

Abstract A number of messaging apps such as FB Messenger, Telegram, Matrix Element, Signal, Status.im, Threema, Whatsapp, etc. offer an end-to-end encryption messaging, however they all use proprietary APIs for message storage/relaying, contacts discovery, keys management, group-administration and other services. These centralized APIs can be used to extract metadata from messages…

I recently wrote a series of blogs on structured concurrency (Part-I, Part-II, Part-III, Part-IV) and how it improves readability, concurrency-scope, composition and flow-control of concurrent code and adds better support for error-handling, cancellation, and timeout. I have been using GO on a number of projects over last few years and…

In this fourth part of the series on structured concurrency (Part-I, Part-II, Part-III, Swift-Followup), I will review Kotlin and Swift languages for writing concurrent applications and their support for structured concurrency: Kotlin Kotlin is a JVM language that was created by JetBrains with improved support of functional and object-oriented features such…

In this third part of the series on structured concurrency (Part-I, Part-II, Part-IV, Swift-Followup), I will review GO and Rust languages for writing concurrent applications and their support for structured concurrency: GO GO language was created by Rob Pike, and Ken Thompson and uses light-weight go-routines for asynchronous processing. Go uses…

In this second part of the series on structured concurrency (Part-I, Part-III, Part-IV, Swift-Followup), I will review Elixir and Erlang languages for writing concurrent applications and their support for structured concurrency: Erlang The Erlang language was created by late Joe Armstrong when he worked at Ericsson and it is designed for…