Quantum-safe thinking: on the new DST Task Force report

In India, the term "Public Key Infrastructure" (PKI) is used in the context of digital security infrastructure. PKI is a system that facilitates secure electronic communication and transactions by using digital certificates, certificate authorities, and other related components. It plays a vital role in ensuring the authenticity, confidentiality, and integrity of data exchanged online.

An open-source digital platform is essentially a software platform where the underlying code is freely available for anyone to see, modify, and distribute. This openness fosters collaboration, transparency, and innovation in software development. All of the above (1. Aarogya Setu, 2. CoWIN, 3. Digi Locker, 4. DIKSHA) are built on top of open-source digital platforms. - Aarogya Setu initially wasn't open-source, but the Indian government later made its source code available. - CoWIN leverages open-source software for its development. - DigiLocker utilizes an open-source platform called Digital Locker System.
- DIKSHA is built on the open-source platform Sunbird.

Majorana 1 chip is linked to quantum computing and deep learning is part of machine learning, but AWS did not introduce the Majorana 1 chip. * ✅ I. Majorana 1 chip – Expected to advance quantum computing. * ❌ II. AWS introducing Majorana 1 – Incorrect, it’s a Microsoft project. * ✅III. Deep learning – A subset of machine learning. Only statements I and III are correct.

Statement 1 is incorrect. A digital signature doesn't directly identify the certifying authority that issued it. It uses a complex cryptographic process involving a public-key infrastructure (PKI) where a trusted third party (Certificate Authority) verifies the signer's identity and issues a digital certificate used for creating the signature. Statement 2 is incorrect. While digital signatures can be used for authentication purposes in certain scenarios, they are not the primary method for user identification when accessing information or servers on the internet. Usernames, passwords, and other credentials are more commonly used. Statement 3 is correct. It ensures the integrity of an electronic document by creating a unique digital fingerprint that is linked to the content. Any alteration to the document would invalidate the signature.

Metaverse: This term accurately describes a network of interconnected, persistent 3D virtual spaces.  Key characteristics of the metaverse often include: * Interoperability: Users can move between different virtual worlds seamlessly. * User-Generated Content: Users can create, own, and trade virtual assets. * Social Interaction: The metaverse facilitates social experiences and interactions. _Let's look at why the other options are incorrect:_ * Big data analytics: This involves analyzing large and complex datasets to uncover patterns and insights. It's not directly related to virtual worlds. * Cryptography: This focuses on secure communication and data protection techniques. While relevant to security within a metaverse, it doesn't define the concept itself. * Virtual matrix: This term is not commonly used to describe the concept outlined in the question. The term 'matrix' is often associated with a grid-like structure or a virtual reality environment, but not the broader interconnected network the question describes.

In India, section 70-B of the Information Technology Act, 2000 (the IT Act) gives the Central Government the power to appoint an agency of the government to be called the Indian Computer Emergency Response Team. Further, it is legally mandatory for service providers, data centres and body corporates to report on cybersecurity incidents as outlined in the Information Technology (The Indian Computer Emergency Response Team and Manner of Performing Functions and Duties) Rules, 2013, which were notified under the Information Technology Act, 2000.

- A qubit is the fundamental unit of information in quantum computing, analogous to the bit in classical computing. - However, unlike a bit that can only be either 0 or 1, a qubit can exist in a superposition of both states simultaneously. - This property of qubits allows quantum computers to perform certain calculations much faster than traditional computers.

❌ Statement I: Incorrect
The National Rail Plan targets 2030 for a future-ready railway, not 2028. ❌ Statement II: Incorrect
Kavach is an indigenous Automatic Train Protection system developed under 'Make in India', not with Germany. ✅ Statement III: Correct
Kavach uses RFID tags on tracks in station sections to track train location and speed continuously. Therefore, Statements I and II are incorrect, and Statement III is correct.

✅ Statement I: Correct
*GAGAN is an Indian SBAS developed by ISRO and AAI to enhance GPS accuracy and integrity, crucial for aviation safety.* ✅ Statement II: Correct
*It improves GPS reliability and accuracy, enabling better air traffic management and safer, efficient navigation.* ❌ Statement III: Incorrect
*GAGAN’s benefits extend beyond aviation to railways, roadways, maritime, agriculture, and disaster management.* Correct Answer: Only Statements I and II are correct.

✅ Statement I: Correct
Rare earth elements like europium, terbium, and yttrium are essential in flat TV screens and monitors due to their role in producing vibrant colors and enhancing display quality. ✅ Statement II: Correct
These elements exhibit phosphorescence—absorbing energy and slowly emitting light—which is key to their use in color reproduction and brightness in displays. Relationship:
Statement II explains why rare earth elements are crucial in displays, confirming the reason behind Statement I. Therefore, both statements are correct and related.