What happened?
The Ministry of Electronics and Information Technology reported a 5.56 km free-space quantum key distribution (QKD) link demonstration in India.
Quick revision
- QKD is a method for establishing shared cryptographic keys using quantum states.
- Its security properties can help reveal attempts to observe or intercept the quantum transmission.
- The reported demonstration distance was 5.56 km over a free-space link.
Why it matters
The development is relevant to questions on quantum technologies, cybersecurity and secure communication infrastructure. Refer to the PIB release for the official technical details.