2
$\begingroup$

Is there any secure cryptographic hash function based on the logistic map?

$\endgroup$
4
  • 6
    $\begingroup$ Unlikely—there's very little, if anything, in cryptography that's inspired by chaotic behavior in continuous systems. $\endgroup$ May 17, 2019 at 1:43
  • $\begingroup$ I found some papers stating things like "Utilizing chaos to construct hash function is a promising direction which attracts more and more attention." Isn't that true? link.springer.com/chapter/10.1007/978-3-642-20542-2_5 pdfs.semanticscholar.org/94c2/… $\endgroup$
    – LinusK
    May 17, 2019 at 13:10
  • 5
    $\begingroup$ It's not promising. It gets so much unwarranted attention and it is so bad that we joke about it. But we really wish it wasn't that way. It's a viral idea and it keeps getting reinvented. Academics (usually people who study something in a different field) that promote it likely haven't put significant effort into studying modern cryptography. To use an analogy: These are not chemists, they're members of a school alchemy club. And they don't even realize it because they're not humble enough to consider that there is a huge legitimate body of collective knowledge to base ideas off of. $\endgroup$ May 17, 2019 at 14:02
  • 4
    $\begingroup$ @LinusK This is not a serious cryptography paper, and the journal is a paper mill publishing scam to harvest money from aspiring academics in developing countries. $\endgroup$ May 17, 2019 at 14:10

1 Answer 1

2
$\begingroup$

A brief description of such functions can be found in chapter 9.3 of the paper “Cryptographic Hash Functions: Recent Design Trends and Security Notions” (eprint.iacr.org/2011/565). The following excerpt is taken from page 29 of the paper:

Hash functions based on chaos theory use chaotic maps, which are functions that exhibit particular chaotic behaviours; examples of these maps include: logistic map [source #75], tent map [source #120], and cat map [source #42]. Unfortunately, most chaos-based hash functions suffer from poor efficiency due to their inherent complex structure, which makes them unattractive as a practical approach for building hash functions.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.