Blockchain Overview – Types, Use-Cases, Security and Usability [slides]

This week I have a talk on a meetup about blockchain beyond the hype – its actual implementation issues and proper use-cases.

The slides can be found here:

The main takeaways are:

  • Think of blockchain in specifics, not in high-level “magic”
  • Tamper-evident data structures are cool, you should be familiar with them – merkle trees, hash chains, etc. They are useful for other things as well, e.g. certificate transparency
  • Blockchain and its cryptography is perfect for protecting data integrity, which is part of the CIA triad of information security
  • Blockchain (a private one) can be a good enterprise integration solution for multi-organization setups where trust is required
  • Many proposed use-cases can be solved with centralized solutions + trusted timestamps instead
  • Usability is a major issue when it comes to wider adoption

As with anything in technology – use the right tool for the job, as no solution solves every problem.

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