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Blockchain solutions: the balance of safety an...

vixentael
October 18, 2017

Blockchain solutions: the balance of safety and efficiency, or just a trend?

Presented at UASC conference in Kyiv, Ukraine.

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The security engineer's job is to choose the appropriate solutions for the problems and to apply them. Discussing blockchain regarding cryptography is rather boring: it is simple, and even some assumptions in high-level protocols do not cause protests.

I will talk about the other side - where blockchain looks like an optimal strategy, where it causes questions. We will walk through the risk&threats models, trust, and guarantees, to the experience of using blockchain in the real project (and what happened next).

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Links to check:

Learn Blockchains by Building One
https://hackernoon.com/learn-blockchains-by-building-one-117428612f46

Blockchain & Cyber Security. Let’s Discuss
https://www2.deloitte.com/content/dam/Deloitte/ie/Documents/Technology/ IE_C_BlockchainandCyberPOV_0417.pdf

3 Ways Blockchain Is Revolutionizing Cybersecurity
https://www.forbes.com/sites/omribarzilay/2017/08/21/3-ways-blockchain-is- revolutionizing-cybersecurity/#6d43bcf4233

vixentael

October 18, 2017
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  1. #uasc @vixentael Blockchain: what linked list of blocks distributed database

    history of trans- actions each block contains meta-info data signature
  2. #uasc @vixentael identity ownership resistance to the single point of

    failure transparency cannot modify transactions Blockchain: why these reasons are more valid than ‘everyone uses blockchain’
  3. #uasc @vixentael No need to trust one point key storage

    blockchain records about revoked keys blockchain key storage blockchain records about revoked keys blockchain key storage blockchain records about revoked keys blockchain
  4. #uasc @vixentael PKI on blockchain is cool, but cumbersome key

    storage blockchain records about revoked keys blockchain key storage blockchain records about revoked keys blockchain key storage blockchain records about revoked keys blockchain
  5. WHAT I THINK I LOOK LIKE WHEN I’M TALKING ABOUT

    BLOCKCHAIN WHAT I ACTUALLY LOOK LIKE TALKING ABOUT BLOCKCHAIN
  6. Home reading https://hackernoon.com/learn-blockchains-by-building-one-117428612f46 Learn Blockchains by Building One https://www2.deloitte.com/content/dam/Deloitte/ie/Documents/Technology/ IE_C_BlockchainandCyberPOV_0417.pdf

    Blockchain & Cyber Security. Let’s Discuss https://www.forbes.com/sites/omribarzilay/2017/08/21/3-ways-blockchain-is- revolutionizing-cybersecurity/#6d43bcf4233 3 Ways Blockchain Is Revolutionizing Cybersecurity
  7. @vixentael Tech Lead Feel free to reach me with any

    mobile security questions. I do check my inbox :)