
Kyoto University demonstrates the security of a cipher based on chaos theory.
CREDIT
Kyoto Univeristy / Eiri Ono
Kyoto University demonstrates the strength of its new cipher
How do we know if the electronic keys we use in our devices are really secure?
While it is possible to rigorously test the strength of a cipher — a kind of digital data lock — there are rarely any definitive proofs of unbreakability. Ciphers are highly complex, and while they may ward off certain attacks, they might be vulnerable to others.
Now, in a series of papers published in IEEE Transactions on Information Forensics and Security and IEICE Nonlinear Theory and Its Applications, researchers from Kyoto University have definitively demonstrated the strength of a cipher which is based on principles of chaos theory.
The group’s Vector Stream Cipher — or VSC — this is the first example of a 128-bit key chaotic cipher with provable security.
“We first developed VSC in 2004 as a simple, fast cipher, and parts of it have already been utilized in the private sector,” explains Ken Umeno, leader of the study. “Many theoretical attacks in the past have failed to break it, but until now we hadn’t shown definitive proof of security.”
The researchers conducted a number of tests, such as a method to evaluate the lock’s randomness. Many ciphers rely on number sequences that appear to be random, but are actually generated through recurring relations that are vulnerable to being reproduced.
“Before evaluating the security of VSC with randomness tests, we found a way to make it significantly more reliable and sensitive,” continues Umeno. “We then continued this refinement during the actual investigation.”
The research highlights that VSC is not only secure, but structurally simple and low on memory usage compared with existing technology, making it useful for high-density data transmission applications such as in 5G mobile networks and 4K television broadcasts.
Umeno concludes, “Chaotic ciphers have been in use for about 30 years, but before this study we had not expected to find proof of security. We hope that our work will be studied widely and applied throughout our digital world.”
Learn more: Shh! Proven security for your secrets
The Latest on: Chaotic cipher
[google_news title=”” keyword=”chaotic cipher” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
- Which will be King Charles III cipher, St Edwards or the Tudor crownon September 27, 2023 at 5:00 pm
The cipher is the monogram of a reigning sovereign and consists of the initials of their name and title and often includes a crown. It has become an uncertain time for companies across the UK who ...
- public key encryptionon September 26, 2023 at 5:00 pm
A large chunk of the global economy now rests on public key cryptography. We generally agree that with long enough keys, it is infeasible to crack things encoded that way. Until such time as it ...
- Best secure drives of 2023: top USB drives to protect your dataon September 26, 2023 at 5:14 am
These USB sticks and external drives have additional protection, usually thanks to either software or hardware encryption (or best of all, a combination of both), which means if they are lost or ...
- Cipher case: IHC fixes Imran Khan's post-arrest bail plea for hearingon September 22, 2023 at 11:14 pm
The Islamabad High Court Saturday fixed for hearing Pakistan Tehreek-e-Insaf (PTI) Chairman Imran Khan's petition seeking post-arrest bail in the cipher case. According to a cause list issued by ...
- Smart Electronic Cipher Locks Market Qualitative Insights on Application & Outlook by Share, Future Growthon September 22, 2023 at 3:50 am
As for the Europe Smart Electronic Cipher Locks landscape, Germany is projected to reach USD million by 2028 trailing a CAGR of over the forecast period.The global key manufacturers of Smart ...
- Yes, Taylor Swift is in fact releasing a song called "Slut!" [UPDATED]on September 20, 2023 at 4:38 pm
Once the fix was in, progress sped way up, and sure enough, the 33 million puzzle total was completed by Wednesday morning. “Oh look! You did it,” a voiceover from Swift announced. “You unlocked the ...
- That Chaotic ‘A Haunting in Venice’ Ending, Explainedon September 20, 2023 at 9:10 am
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." AGATHA CHRISTIE'S HERCULE Poirot has been a mainstay in detective shows and movies for decades, and ...
- Fast X's Cipher scene holds clues to what to expect in Fast & Furious 11, says directoron September 20, 2023 at 3:42 am
If you want clues on Fast & Furious 11's storyline, you have to go back and "listen to the dialogue" in Fast X, says director Louis Leterrier – specifically during Cipher's very first scene in ...
- Dungeons & Dragons: 7 Things To Avoid When Creating A Chaotic Evil Characteron September 18, 2023 at 7:33 am
Even chaotic evil characters need some rules in Dungeons & Dragons. Here are things a player should avoid when creating one. Alignment determines a character's personality in D&D, making it ...
- Woman laid out as cops and wedding guests clash in chaotic dockside brawlon September 15, 2023 at 6:57 pm
Several members of a wedding party were recently arrested after an intense brawl with police officers in Newport, Rhode Island. The scuffle took place last Sunday after one of the individuals ...
via Google News and Bing News