{"id":1971,"date":"2019-12-09T15:36:08","date_gmt":"2019-12-09T14:36:08","guid":{"rendered":"https:\/\/www.codemotion.com\/magazine\/?p=1971"},"modified":"2020-01-22T00:05:40","modified_gmt":"2020-01-21T23:05:40","slug":"cogito-identity-management-and-blockchain-in-healthcare","status":"publish","type":"post","link":"https:\/\/www.codemotion.com\/magazine\/backend\/blockchain\/cogito-identity-management-and-blockchain-in-healthcare\/","title":{"rendered":"Cogito: identity management and blockchain in healthcare"},"content":{"rendered":"\n

Blockchain<\/strong> technologies are changing the way to implement new software solutions. However, its techie and money-based beginnings result in an uncomfortable user<\/span> interface. Moreover, the need for personal management<\/span> of own identity<\/span> data<\/span><\/strong> is rapidly arising while distributed ledgers gain momentum.<\/p>\n\n\n\n

What is digital trust?<\/strong><\/h2>\n\n\n\n

Blockchain seems to be a great solution to many current problems. It nevertheless sports at least two main<\/span> problems: its UX<\/span> has never been user<\/span>-centric<\/strong>; it has been used almost entirely within money\/finance applications<\/span><\/strong>. So to use it outside of such areas it needs a few, but very important, modification in both the UX<\/span> and the working model.<\/p>\n\n\n\n

Cogito<\/span><\/strong> (pronounced ko-‘gee-taw<\/em>) is a Philips<\/span> self-sovereign identity<\/span> system in the healthcare environment. Thanks to the new more open Philips<\/span> philosophy, now Cogito<\/span> is fully open source<\/span><\/strong> and ready to use on GitHub<\/span><\/strong>.<\/p>\n\n\n\n

Let’s generate our digital identities<\/strong><\/h2>\n\n\n\n

Let’s start with identity<\/span> management<\/strong>. We have today many identities<\/span>, from ID<\/span> documents to credit cards, to all our online access user<\/span>\/password<\/span> credentials<\/span>. All these identities<\/span> are issued by a different entity than us: we can manage our data<\/span>, but we don’t own them<\/strong>. Generating own identities<\/span> is an important issue in today’s society, for relevant data<\/span> especially, such as medical records<\/span>. Blockchain provides a good answer to this need: being coupled with cryptography<\/span>, it allows the user<\/span> to generate and manage his identity<\/span> data<\/span>.<\/p>\n\n\n\n

Towards a friendly blockchain UX<\/span><\/strong><\/h2>\n\n\n\n

Here comes the second problem approached by Cogito<\/span>. Blockchain identity<\/span> managements solutions are normally wallet-based<\/strong>: identities<\/span> are managed through a piece of software directly built on the most technical users<\/span>‘ needs. This makes the overall mechanism too much detailed for the average user<\/span>, needing a simpler, yet secured and powerful, user<\/span> interface.<\/p>\n\n\n\n

Cogito’s ecosystem<\/strong><\/h2>\n\n\n\n

Philips<\/span>‘ work is still in progress. To grow faster and more robustly, they call for any developer<\/span> or community who could be interested<\/strong>. Cogito<\/span> solution is based on an Ethereum<\/span> blockchain<\/strong>, on which the software is executed (smart contracts), a web app<\/span> and a smartphone<\/span> app<\/span>.<\/p>\n\n\n\n

\"\"
How Node.js, the Telepath queueing service, and the Ethereum blockchain are used by the web- and mobile-app.<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

You can use all of the software components<\/span> starting on the website cogito.mobi<\/a><\/em>, which also provides a tutorial and many useful information. Starting from the introduction page you can also reach the GitHub<\/span> page.<\/p>\n\n\n\n

We first need to store<\/span> credentials. The most convenient place to store<\/span> our identity<\/span> data<\/span> today is our smartphone<\/span>. This is surely the best solution, but it doesn’t mean it’s perfect. What happens if we lose our device? We lose every piece of data<\/span>, obviously, including our identities. Cogito<\/span>‘s apps<\/span> are not addressing this issue today, but the staff is working on it.<\/p>\n\n\n\n

Let’s look at Cogito<\/span>‘s identity<\/span> management and data<\/span> exchange. You open the web app<\/span>, and it communicates with the mobile<\/span> app<\/span>. Relevant data<\/span> is never revealed to a server<\/span>, giving you the best security possible. You can assume more than one identity<\/span> (let’s say your private one, and you job-related one) that will be linked to your same cryptographic<\/span> key<\/span>.<\/p>\n\n\n\n

The connection between the two apps<\/span> is setup using<\/span> a QR code<\/span><\/strong> issued by the web app<\/span> and read by the mobile<\/span> app<\/span>. Now the app<\/span> can communicate with blockchain’s specific software, for both data<\/span> storage<\/span> and software execution. The Ethereum<\/span> blockchain and its implementation of the software (smart contract’s functions) has been Cogito<\/span>‘s choice.<\/p>\n\n\n\n

API and React-based apps<\/strong><\/h2>\n\n\n\n

The Javascript API<\/span><\/strong> allows web apps<\/span> to identify Cogito<\/span> users, provide end-to-end encryption<\/span> using<\/span> Cogito<\/span> managed keys, and interact with Ethereum<\/span> smart contracts.<\/p>\n\n\n\n

It also provides convenience components for React-based web apps<\/span><\/strong>.<\/p>\n\n\n\n

\"\"
The React-based components provided with the package.<\/figcaption><\/figure><\/div>\n\n\n\n

Web apps<\/span> communicate with the Cogito<\/span> mobile app<\/span> through an end-to-end encrypted communication channel<\/strong> called Telepath<\/strong>. Web apps<\/span> can also choose to interact with Ethereum<\/span> contracts using<\/span> web3.js API<\/span><\/strong>.<\/p>\n\n\n\n

The GitHub<\/span> repository<\/span> sports some functions that are already implemented. The “Simple Encryption<\/span>” code, for instance, allows you to encrypt\/decrypt notes without showing off your encryption key<\/span>.<\/p>\n\n\n\n

This simple example shows how neat is Cogito<\/span>‘s approach for both the user<\/span> and the service provider<\/span>. Normally crypto-based apps<\/span> are difficult to explain to the user<\/span>, and not very friendly to the service provider<\/span>. Cogito<\/span>‘s approach is straightforward<\/strong> and ideal for the health environment; at the same time, it shows some improvements to blockchain’s user<\/span> interface that could be easily implemented in all other applications<\/span> -money- and finance-related themselves.<\/p>\n\n\n\n

<\/p>\n\n\n\n

If you are interested in Cogito<\/span> and other similar technologies, check out what career opportunities<\/strong><\/a> are available at Philips<\/span> right now. You can also watch this video<\/a> to discover what it\u2019s like to work for a company<\/span> that focuses on meaningful innovation to create a healthier and more sustainable society!   <\/p>\n\n\n","protected":false},"excerpt":{"rendered":"

Cogito is an open source identity system based on Ethereum Blockchain, to manage and own digital identities. 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