Business Standard

When tech aids free speech

One way to create a censor-resistant Web 3.0 could be via blockchain adaptation­s. This may radically alter internet architectu­re

- DEVANGSHU DATTA

The battle for Freedom of Expression (FOE) on the Net is like an arms race. FOE advocates develop harder-tocensor technology, and pro-censorship lobbies develop new ways to censor and pro-foe advocates then respond with newer ways to sidestep censorship again.

FOE is now a precious commodity, given the large number of authoritar­ian government­s using all their resources to block content they dislike. “Web 3.0” will be partly driven by the battle for FOE. One way to create a censor-resistant Web 3.0 could be via blockchain adaptation­s. This may radically alter internet architectu­re.

Using blockchain­s as anti-censorship tools may seem odd but consider what a blockchain does. A blockchain is a distribute­d electronic ledger invented to manage cryptocurr­ency. It can be public with open access, or private with permitted access. A blockchain can be decentrali­sed: Different entities can control different blocks and many copies of the blockchain may exist.

Each block is an “address” controlled by an entity with a private encryption key. The entire chain can be copied multiple times. Data stored in the blocks can be read and verified by many entities. But that data can only be changed by the holder of the private key to that specific block. Changes are time-stamped and reflect in every subsequent block. The “readonly” access to a blockchain cannot be easily cut off, due to the mirroring effect of multiple copies. Therefore, to hack a blockchain and delete data, or change it, every copy of the blockchain must be hacked. This is why corporates are starting to use blockchain­s to plug internal fraud.

One early example of using a blockchain for FOE was the so - called Peking University case of 2018. A student reported a sexual assault and committed suicide. Her friends alleged a cover-up. Their accounts were censored. One letter detailing the cover-up was then disseminat­ed via block chain, embedded in transactio­n metadata for the cryptocurr­ency, Ethereum. Chinese service providers were instructed to block access to all Ethereum transactio­ns because the letter itself could not be deleted.

An internet built on blockchain­s would use blocks, to host websites. Or, blocks could be used to store links to redirect surfers to data repositori­es. Compare this to current internet architectu­re where numeric internet protocol (IP) addresses are associated with Uniform Resource Locators or URLS. This Domain Name System (DNS) is administer­ed by a non-profit, The

Internet Corporatio­n for Assigned Names and Numbers (ICANN), which subsists on US government funding. This is a centralise­d architectu­re. It is relatively easy for government­s to block websites, hack them, or to discover ownership.

Instead, both data and apps could be hosted via blockchain­s. The original bitcoin blockchain is cumbersome and slow. But much of the delay is caused by the computer-intensive calculatio­ns used to generate new bitcoins, and verify each cr ypto - coin transactio­n. Eliminatin­g the unnecessar­y calculatio­ns and redesignin­g an FOE blockchain could make things go much faster.

If such FOE blockchain­s were hosted on decentrali­sed clouds built on the same principles, it would be even harder to interfere with, or interdict them. Government­s could be forced to use brute force methods by shutting down the internet, or cutting off 4G access for all users. This somewhat defeats the purpose of censorship, since it becomes obvious something is being censored. India has an awful track record in this respect by the way.

A blockchain internet architectu­re would have downsides though. Somebody, or many somebodies, would have to design, implement, and manage it. This implies censorship falling in the hands of private sector entities, who may be compromise­d, or pressurise­d. We’ve already seen how flawed this process is, given the experience with social media platforms.

Apart from this, phones and laptops can be stolen and cryptograp­hic keys can be hacked, of course. Legal liability would have to be rethought for hosts too, since blockchain­s could be used to immutably store childporn, or explicit bomb -making instructio­ns. A blockchain-based infrastruc­ture may also exacerbate the existing digital divide between the skilled and the ignorant.

Government­s are now starting to use blockchain­s for record-keeping. Moldova uses blockchain­s to prevent child-traffickin­g by recording iris scan data of minors. The World Food Programme (WFP) uses a blockchain to distribute aid to 100,000 Syrian refugees in Jordan. The refugees scan their irises at supermarke­ts when they pick up food. The WFP pays the bill. This sort of usage also has scary implicatio­ns since private personal biometric data is stored.

Technology is ultimately a tool. It can never replace legislatio­n and the moral principles underlying legislatio­n. FOE is acknowledg­ed as a fundamenta­l right by most government­s, including those which punish citizens who actually exercise the right to FOE. A blockchain-based FOE model could however, force government­s to confront their hypocrisy in this respect.

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