Meanwhile, Vodafone worries about sci-fi tech's potential to break encryption
and uses quantum key distribution over standard 10Gbps fiber-optic connections to secure end-to-end transmissions. The QKD hardware and the key management systems are provided by Toshiba, and the whole system is a three-year commercial trial to gauge the viability of a quantum-secured metro network.
QKD is a method of securely distributing encryption keys by encoding the information into the quantum states of individual photons. Once this is accomplished, information can be exchanged normally using the keys to encrypt transmissions. The tricky part is building the network so the QKD can use the same optical fibers as the data traffic rather than needing dedicated lines.
"Our customers, clients and employees expect us to have safe and secure operations and resilient cybersecurity, so we must stay ahead of the curve," Colin Bell, CEO of HSBC Bank and HSBC Europe, said in a statement. The bank said it processed 4.5 billion payments for customers last year, worth an estimated £3.5 trillion, and those transactions rely on encryption to protect customers from potential fraud or theft.is more worried about the potential of quantum systems to be able to break encryption codes and is testing out a quantum-safe virtual private network for smartphones.
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