Hack-a-Chain Blockchain Technology

This special video from the #hack_a_pills series is split into two parts and logically explains when a system has privacy and when it does not. Technical definition of privacy - Part 1 It’s important to differ from the moral intentions of a system, e.g., a specific website should not disclose that you have an account there, from the technical feasibility of the system, e.g., anyone can try to create an account with your email and check if you already have one. A system is technically private whenever it’s not possible to extract information that should not be extracted, and vice-versa. Check out the complete video: https://lnkd.in/dEPbYXH7

Voting is a process that everybody goes through at least once in their life, be it national elections, a company’s decision-making, or, more recently, DAO’s decision-making. Blockchain facilitates the creation of more transparent voting processes and enforceable decisions through smart contracts. However, transparency is not always good. Most voting processes in the “traditional world” have some sort of privacy, especially on the voter's identity and the vote itself, and there are some good reasons for that. Protecting votes and voters' privacy is essential to preventing bribery, vote biases, and even the voters' security. However, due to the blockchain’s transparent nature, such protection can be tough to enforce. Creating a private voting process evolves by crafting together advanced cryptographic techniques, such as zero-knowledge and MPC, and different teams have been trying to solve this problem. In this video, João Antônio S. da Veiga (Hack-a-Chain’s CTO) explains the whole voting process and proposes a way to solve the privacy issue in each step. Check it out and give us your feedback! https://lnkd.in/eP2wxk6T

#ETHDenver was stunning! Our co-founder Rafael Krás Borges had 2 busy weeks representing Hack-a-Chain in several side events, hacker houses, and business chats in Colorado. What a great opportunity to learn, connect and build alongside leaders in the industry, and also our folks from #Floripa. Checkout the highlights with Colorado vibes in the video below 📷👇

#HACK_A_PILLS Privacy is not a single concept, but it does relate to the leakage of information that could lead to gains/losses, be it legally, morally, or economically. Let’s not get more confused! Check out the complete video: https://lnkd.in/dEPbYXH7

#Hack_a_Pills In economic terms, privacy relates to information asymmetry that leads to financial gains or losses. If I have inside trading information, I could move the market for my own benefit, even though the information should be kept private. In the context of blockchain, this arises especially with MEV, but different data leakages lead to economic gains and losses in the ecosystem. You can check the full video at: https://lnkd.in/d5SsuZ9T

#Hack_a_Pills - Moral Concept of Privacy Privacy can be seen through different lens. In the legal context, privacy relates to what should and what should not be private according to the law. Tornado Cash is a notorious case in which a private system was not legally accepted - and this is not a moral conclusion, just a legal one. Check out the whole video: https://lnkd.in/dEPbYXH7

#Hack_a_Pills Privacy can be seen through different lens. In the legal context, privacy relates to what should and what should not be private according to the law. Tornado Cash is a notorious case in which a private system was not legally accepted - and this is not a moral conclusion, just a legal one. Check out the whole video: https://lnkd.in/dsYqCJxE

#Hack_a_Pills - Bazk Milestones João Antônio S. da Veiga explains our newest project http://bazk.tech roadmap! Merging zero-knowledge with a trusted execution environment unlocks a whole new level of privacy-preserving applications, such as Dark Pools, Private Voting, and many others. Along with Phala Network, we’re on the mission of making this real. Check out the whole video: https://lnkd.in/dKQavZjb

#Hack_a_Pills - How we improve TEEs Neither ZK or TEEs are 100% perfect. Both have their limitations. But what if we could merge them to create a barely perfect co-processor for private computation on the blockchain? This is what we’re trying to build with Phala Network at the Bazk project. Check out the complete explanation in the full video: https://lnkd.in/dKQavZjb

#Hack_a_Pills Why Phala - Part III Trusted Setup Ceremonies are a necessary evil for many applications. To initialize an algorithm securely, you must perform a ceremony that outputs a random and unknown number - otherwise, the system can be compromised. This usually involves complex technical tasks and community engagement. However, it’s possible to have a secure trusted setup ceremony using Phala Network That’s what we are building on the Bazk project! Check out the whole video: https://lnkd.in/dKQavZjb