Unlike a centralized data store where only the owner needs to make an update to one copy and shares it with others, this decentralized data store is distributed throughout the network and it all needs to be updated in real time by the people who possess those copies of that data.įor trust-minimization, we want to formally specify the kinds of ways service data can be altered with access rights. How can we implement business logic on a distributed data store?įirst, let’s consider how updates to data are made.
Bitmessage vs how to#
Now we just need to figure out how to execute the business logic. For now, we have the censorship-resistant data storage part solved. This is to say that there’s no way to implement the actual business logic when end-users interact with these web pages.
The main issue with these options is that they only contain static content. The problem with using a blockchain in this case is that it requires a consensus mechanism which is a lot of overhead, so let’s avoid it unless we need it. All that we require right now is that the data is highly distributed, and everyone has a copy. These are censorship-resistant because the former two are decentralized and the latter is immutable. This would be like using a decentralized data store such as Freenet and Bitmessage, or a distributed blockchain. What if we used a censorship-resistant means of data storage? With Bitcoin we’ve solved the payments problem, so let’s figure out how we can build a system whose data and servers can’t be taken down. Minimum requirements to offer online services, censored or notĬonventionally, data stores are provided by databases and business logic is implemented by servers. So let’s try to improve on this by adding censorship-resistance to these core features. Once it was discovered, there was no way to protect the service from being taken down. Rather, the hidden nature of the service meant it could operate so long as it was not discovered. The weakness with this setup was that there was no real censorship-resistance in terms of data storage or executing business logic. Bitcoin was obviously the means of payment. They both provided data storage and a means of executing business logic. In this setup, the administrator ran a database and a server as part of the hidden service. Tor hidden services with Bitcoin were the first way to offer a service in a censorship-resistant manner that scaled.
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