Quantum cryptography aims to make data secure using fundamental physical principles, such as the quantum mechanical phenomena of entanglement and Heisenberg's uncertainty principle.
Probably its best known application today is quantum key distribution, which allows two parties to protect their secret communication from the prying eyes of an eavesdropper. Quantum key distribution is technologically much easier to implement than a full quantum computer and the first commercial implementations are already available today. Yet many challenges remain in bringing quantum key distribution into practise. For example, recent work by CQT researchers has shown that current practical proposals are plagued by problems that can allow hackers access to the secret communications. By understanding such attacks, one can find new ways to improve practical implementations.
CQT researchers have been and continue to be at the forefront of research in quantum cryptography, from quantum key distribution in 1991 to very active recent research in device independent key distribution, testing the security of practical systems, and two-party protocols such as secure identification.
CQT will host the 2nd Conference of Quantum Cryptography (QCRYPT) in 2012.
- CQT team awarded S$10 million for research into randomness
- World's first demonstration of bit commitment performed at CQT
- Quantum cryptography can resist malicious manipulation
- CQT-led team contributes feature to Optics and Photonics News
- Extracting randomness from its root source
- So long, QCRYPT
- CQT announces the Quantum Shorts 2012 film competition
- Singapore showcased at Nobel Laureate Meeting
- CQTians to participate in Lindau Nobel Laureate Meeting
- CQT tests quantum satellite components in near-space environment