QKD tagged posts

World’s first quantum microsatellite demonstrates secure communication with multiple ground stations

Schematic diagram of the quantum key distribution experiment between the quantum microsatellite Jinan-1 and ground stations. (Image from USTC)

A research team has developed the world’s first quantum microsatellite and demonstrated real-time quantum key distribution (QKD) between the satellite and multiple compact, mobile ground stations.

The research, led by Pan Jianwei, Peng Chengzhi, and Liao Shengkai from USTC, jointly with the Jinan Institute of Quantum Technology, Shanghai Institute of Technical Physics, the Innovation Academy for Microsatellites of the Chinese Academy of Sciences, and Stellenbosch University of South Africa, is published in Nature.

Quantum secure communication is fundamental to national information security and socioeconomic development...

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Corporate Collaboration bolster Quantum Encryption

encrypted
Credit: CC0 Public Domain

Toshiba Europe and global telecommunications corporation Orange say they have achieved a significant advance in securing network communications from ever-more powerful computer attacks.

Security experts have been warning that a new generation of quantum computers is likely only a few years away from attaining the ability to crack today’s stringent public key encryption codes.

Some experts say quantum computers will be strong enough to crack the widely adopted RSA-2048 encryption standard for secure online transactions within about 15 years. The Cloud Security Alliance had a more dire—and precise—prediction: Encryption safeguards will be overtaken by April 14, 2030...

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Quantum Cryptography: Hacking is Futile

An international team has successfully implemented an advanced form of quantum cryptography for the first time. Moreover, encryption is independent of the quantum device used and therefore even more secure against hacking attempts.

The Internet is teeming with highly sensitive information. Sophisticated encryption techniques generally ensure that such content cannot be intercepted and read. But in the future high-performance quantum computers could crack these keys in a matter of seconds. It is just as well, then, that quantum mechanical techniques not only enable new, much aster algorithms, but also exceedingly effective cryptography.

Quantum key distribution (QKD) is secure against attacks on the communication channel, but not against attacks on or manipulations of the devices...

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