The global comprehensive digitalisation of our local and global society emphasises the lack of secure infrastructure that can sustain this development. The ongoing development in decentralized infrastructure and the vision about WEB 3.0 represents a large collective effort to provide such a secure infrastructure. The different attempts encompass various trade-offs between the three core objectives of any secure infrastructure: Integrity, confidentiality and availability. the PBC Platform provides a unique balance between these core objectives by a unique combination of zero-knowledge computation and blockchain technologies.
The goal of the PBC Platform is to pave the way for a sustainable data-driven society with a new balance between protecting and using data.
In general, the process of identifying the correct decision or computing the right statistics requires a lot of data. In many cases, this involves confidential information such as sealed bid auctions or peer data used for statistics such as credit scoring. In both cases, ensuring that confidential information remains confidential is fundamentally important for strategic as well as privacy reasons.
The PBC Platform has been developed in parallel to a number of projects combining zero-knowledge and blockchain technologies. The blockchain based data exchange – Insights Network – is one example where a requester searches for matching profiles using ZK computation and where a match results in a transaction of information for Instar tokens. The blockchain based off-exchange matching service – Crosspoint – is another example where a group of buyers and sellers match confidential orders.