Blockchain is a relatively unfamiliar field to many people, but in some daily applications, we will inevitably come into contact with it, but we are unaware of its existence without an in-depth understanding. For example, our data security is one of the important aspects of blockchain system development. What aspects make it important? Let’s look at the next introduction.
1. Tests that can prove the correctness of software
Testing to Prove Software Correctness Formal Verification One of the security solutions in the blockchain space is to continuously test. However, program testing can only be used to show the existence of bugs, but can never prove their absence.
2. The dark side of blockchain
The Dark Side of Blockchain Formal Verification Similar to other computer programs, smart contracts are prone to vulnerabilities. The essential reason for this phenomenon is the mismatch between the programmer’s design intention and the actual implementation of the code. The blockchain world is full of bugs, the most representative of which is TheDAO “double-spend” attack that resulted in the loss of $50 million worth of crypto assets.
3. A comprehensive formal verification system with in-depth specifications
In order to meet the challenge of formal verification of complex systems, the team developed a new technology called Deep Specification (DeepSpec for short). The technology allows users to write conversational specifications and create proof and verification modules. Using this method, the originally extremely cumbersome verification process can be decomposed into many smaller and easier-to-solve code fragments, thereby reducing the burden of proof and making it possible to use formal verification of complex systems. Leveraging deep specifications, the blockchain technology development team built the world’s first fully verified multi-processor operating system kernel – CertiKOS, which has been proven to be vulnerability-free and hacker-proof. This work has been discussed at many top academic conferences and is widely regarded as a real breakthrough in formal verification. The technology of deep specification was named in 2015. This technology was later researched and promoted by the NSF Expedition project and major communities.
Although we don’t know much about blockchain, through the above introduction we will find that blockchain not only protects the security of our data, but also facilitates the use of the mechanism. We don’t have to feel that our privacy will be illegally stolen. Blockchain system development better serves the public and promotes the development of data technology.
