Essential Elements of Scaling Quantum Computers. Topological photonics: Don’t require strong magnetic fields; are highly coherent; operate at room-temperature; easily manipulated. This report is found
Japanese industry research and development teams have enabled a quantum key distribution (QKD) network over a distance of 7 kilometers with a speed over 10 Mbps.
The warnings are becoming more prolific: Quantum is coming and it’s going to crack encryption. Not necessarily all types of encryption will be readily hackable by quantum computers. There are several defenses one could enable, today: Cryptographic agility, doubling your symmetric key size from today’s average key size, implementation of post-quantum computing algorithms which have been proven resistant to hacking by QCs, and allowing your encryption suite to encode with both current and post-quantum computing algorithms.
A team affiliated with the University of Bristol has devised a tiny (1 mm square) random number generator which generates numbers at 2.8 Gbps speeds using silicon photonics technology found in semiconductor fabrication methods. This rate of photon generation and its inherent randomness coupled with a “very low” power consumption give this QRNG potential to secure encryption at the mobile-device level.
In encryption, the one-time pad is known as the most secure method to maintain confidentiality of data — unbreakable with completely random numbers. Acting as the cryptographic key, random numbers must be truly random or the risk to the encrypted data becomes an issue.
“The goal of a good hash function is to make it extremely difficult for attackers to find ways of generating inputs that hash to the same value…” Quantum computing is certainly a veritable threat to encryption. But what about its sister cryptographic apparatus, the hash? Arguably as important as encryption, the hash provides vital services to verifying data integrity. How much of a threat is quantum computing to this function?
Quantum key distribution (QKD), a method of distributing secret keys between two parties, is possible – today – in enabling perfect secrecy between two-parties. Researchers have recently shown this ability to maintain perfect secrecy over fiber-optic wires
In the next ten years, the notion of quantum supremacy will have likely been attained, and further, quantum computing will have begun to crack data encryption of the prolific types in use today.
The near future for quantum computing: By 2023, expect quantum computing to be in wide use commercially.
Financial Cryptosystem Cybersecurity in an Era Ruled by Quantum Computers Once quantum computing is strong enough to break financial cryptosystems, will the financial industry be
