Original link: https://www.hellobtc.com/kp/du/10/3758.html
Author: Hebao / Source: Vernacular Blockchain
Author | Hebao
Produced | Vernacular Blockchain (ID: helloBTC)
On the evening of October 4, Facebook, Instagram, and WhatsApp experienced massive outages, and data on more than 1.5 billion Facebook users was rumored to be being sold on a popular hacking-related forum, including users’ names, emails, phone numbers, locations, Gender and User ID.
In fact, this is not the first time that Facebook and others have exposed such serious user privacy information. In April this year, Facebook’s servers were attacked, resulting in the exposure of 533 million users’ personal data within 3 days, of which 106 were involved. Countries and regions, the leaked information includes users’ Facebook account names, locations, birthdays, and email addresses, which are extremely detailed.
In this context, the decentralized account system (DID) that is different from the traditional account model may be able to bring us some new thinking and imagination space.
01
What is DID? How to combine with blockchain?
In the traditional Internet world, we are already familiar with Internet identities such as mobile phones, Weibo, WeChat, etc. that exist in the form of accounts. These identities divided into different ecological segments are managed and saved by corresponding centralized Internet service providers . Therefore, the corresponding hidden dangers of centralization cannot be avoided.
In addition to these service nodes having the right to close our accounts and make us lose the identity of multiple sites at the same time, the more serious problem is the collective privacy leakage – the centralized architecture is destined to have its privacy leakage almost unavoidable once it occurs Big event.
DID (Decentralized Identifier), that is, a decentralized identity system, uses technologies such as blockchain to make digital identities truly owned and controlled by users themselves , just like when we put paper documents such as ID cards, passports and household registration books on Save it carefully in your own home, and only take it out when you need it. There is no longer any middleman who completely owns the user’s identity and data, which can better avoid the above dilemma.
Specifically, in the framework of DID, instead of having multiple digital identities managed by multiple centralized providers without trusting a third party to keep them, individuals can have one digital identity that contains all this information and is managed individually, These identities may not be used by any individual or institution for any purpose without the express consent of the owner.
I understand that it is to truly return personal privacy and data rights to everyone’s free control , and no longer hold the privacy and data that should belong to users like the current Internet giants. activities, and users as contributors do not enjoy the rewards they deserve.
Therefore, in the era of Web 3.0, with the help of DID users will have more control over personal identity and data. Although blockchain is not a necessary option for DID technology, blockchain technology can help DID and avoid many disputes. And can maintain the credibility of the data at a lower cost.
Specifically, the blockchain-based DID scheme has 3 advantages :
personal data ownership
Based on the blockchain, identity data is prevented from being controlled by a single centralized authority. The identity of each user is controlled by its owner, and individuals can manage their own identity independently without relying on the identity-providing application.
complete privacy
Users no longer need to register accounts through phone numbers, ID cards and other information. The use of decentralized identities for users means that users’ privacy will no longer be stolen by centralized platforms and used to do evil through these data, causing problems like we often encounter. Harassment such as trading platform customer service.
Convenience
Users can access and participate in blockchain projects using only one decentralized identity, which lowers the threshold for users to enter the blockchain world, and also brings users a better experience. Just like we currently use the MetaMask wallet to log in and enjoy almost all DApp application services such as DeFi and NFT, but in the traditional Internet ecosystem, we have WeChat accounts, NetEase accounts and other accounts that are segmented, which is also The inevitable development trend of the Web3 era.
02
What blockchain scenarios can DID enable?
In short, DID itself is committed to integrating the existing identity information of each user as much as possible to create a digital identity that is not limited to any fragmented platform. Cloud identity, cross-platform identity, to achieve a comprehensive individual identity cognition system.
The aggregation of DID information can not only bring the above advantages, but also make the user’s digital identity richer and more three-dimensional, and even derive a one-stop solution to obtain DID data from different blockchain networks. Identity data generated in the blockchain .
Most directly, for our blockchain users, the assets, transaction records, behavior data, etc. on the personal chain are also equivalent to a “sleeping gold mine”, and the hidden value in it does not have a mature credit system. To mine and quantify it, so that the credit accumulated by everyone on the blockchain and digital assets is basically wasted.
However, DID seems to be facing a dilemma of “segmentation” similar to the real world in the current blockchain world: although Ethereum is a well-deserved leader in terms of capital volume and user data, Polkadot, Solana , Terra and other blockchains can not be ignored directly, and the data retained by different chains are like isolated islands.
Therefore, it is undoubtedly unfair to only focus on Ethereum in the process of DID construction: for example, in addition to some funds being carried out on public chains such as ETH and BSC, some of them may be “farmed” on Solana and Terra chains. .
In this case, it is undoubtedly biased to judge an individual’s on-chain credit only by the asset status and behavior data on ETH. Especially in the context of the current expansion of the development volume of various companies , it is often possible to obtain more comprehensive and valuable information by combining information from different perspectives on different blockchains.
Therefore, DApps such as DID-based DeFi and NFT can completely provide different levels of services for different users. Entities with good debt repayment histories could get loans from borrower platforms with less collateral, or new DeFi projects might prevent bots from taking advantage of their airdrops to human users, and imaginative new use cases.
For example, referring to the many evaluation dimensions of the Sesame credit scoring system, enjoying credit rights and interests based on the most direct considerations such as the asset status and behavior data on the chain – in DeFi mortgage lending, personal on-chain credit is used to obtain mortgage rate discounts, etc. In this context, DID is the basic support for many DeFi products and services.
And the unsecured credit lending in the DeFi world is just a typical small example. With the blessing of DID, the value of data on the chain is no longer slumbering for ordinary users, and they can experience more DeFi products and services based on identity and credit.
03
DID’s “New Infrastructure” property
Credit has always been a big business. In the modern financial system, the most important core driver is the element of credit. In essence, modern finance is also a variety of derivative games built on credit.
Under the background that the volume of DeFi has exceeded 110 billion US dollars, the next wave of outbreaks is destined to be based on DID. Therefore , if identity credit is realized in the blockchain network, a large number of financial products can be spawned. From this perspective, DID actually plays a key “new infrastructure” role in it.
At the same time, traditional Internet giants have not stopped their own layout. Since the birth of DID, the World Wide Web Consortium (W3C) has begun to formulate DID specifications. At present, Microsoft, IBM, etc. have submitted their own DID protocol methods, and successively Roll out your own solution.
Microsoft
In February 2018, Microsoft announced that DID will be the entry point of the company’s blockchain strategy, and in October of the same year, it published the “Decentralized Identity” white paper.
Then in May 2019, Microsoft released an early preview of the decentralized identity (DID) network of ION (Identity Overlay Network). People in the industry believe that if Microsoft presets the DID function into Microsoft’s hardware products, it is likely to play a widespread role in the same way as the Windows 95 operating system.
IBM
IBM has also deployed a number of projects related to distributed digital identities, including Indy co-sponsored by IBM and HyperLedger. Hyperledger Indy’s project Sovrin is a pioneer of enterprise-level solutions and has advantages for enterprises that need to deploy DID based on open source technology immediately.
The blockchain authentication network IBM is building with SecureKey and members of the Canadian digital identity ecosystem. Visa also launched a blockchain-based digital identity system with IBM in the first quarter of 2019 to improve cross-border payment security.
04
summary
In general, in addition to the layout of traditional Internet giants, there are more and more supporting solutions for exploring DID decentralized identity in the blockchain industry. As an indispensable core component in the Web3.0 era, DID is in the In a way, it is the key “infrastructure” of the industry.
From the decentralized identity framework, to the data management application, to the data exchange platform, a closed loop can be formed logically, so that users can completely own their own complete decentralized identity, master their own data, and effectively use and play The value of data lays the foundation for more diversified application scenarios.
Perhaps in the context of the Web3.0 era getting closer and closer to us, DID is beginning to build a new network system and innovative gameplay based on personal identity, let us continue to pay attention.
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