Jonathan Jogenfors Profile picture
May 28, 2018 8 tweets 4 min read Twitter logo Read on Twitter
Very nice write-up on the lack of collision resistance in the Curl hash function previously used by the #IOTA cryptocurrency. Includes source code for generating collisions, formal proofs, and will be the final say in this debate.…
The paper is due to Michael Colavita and Garrett Tanzer, both of Harvard University. It appears to be original research performed independently of the paper by Heilman et al. Big thanks to @cybergibbons for bringing this to my attention.
The reddit thread on the #IOTA subreddit has only a handful of comments at the moment, but they are hilarious to read.…
"Nah, it's not an issue because it is not finding collisions using wildly different inputs". u wot m8?
Short paper summary
Seems like 2nd preimage resistance is partially broken, too. Since #IOTA still uses the Curl hashing function for milestone verification, could this be used to launch an attack on the network?
Question now is if the #IOTA folks will continue the legal crusade against critics now that attack code *has* been published. Remember, they were the ones demanding code.
#IOTA supporter or climate change denier? There's just no telling!

• • •

Missing some Tweet in this thread? You can try to force a refresh

Keep Current with Jonathan Jogenfors

Jonathan Jogenfors Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!


Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!


0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy


3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us on Twitter!