Adam Shostack  

Is there a term of art for usable display of hashes, keys or other crypto material?

I want things that are recognizable to a person "at a glance" and change dramatically on a small change. (thanks for the clarifying q, @jbaggs !)

I'd used the phrase "visual hash" but I'm getting a lot of things about hashing images (eg, https://www.researchgate.net/profile/Xiaofeng-Wang-32/publication/276428507_A_Visual_Model-Based_Perceptual_Image_Hash_for_Content_Authentication/links/5593471908ae5af2b0eb7420/A-Visual-Model-Based-Perceptual-Image-Hash-for-Content-Authentication.pdf)

Think the sorts of swirling dot displays Apple uses something when you migrate between phones.

Mar 15 at 11:41pmWeb
Show threadjbaggsMar 15

@adamshostack Before I boost this, do you mean intuitively recognizable upon seeing, in the way SSH tried to do with "ASCII art"?

(Just followed the link and oh look at all of those square roots and fun set theory stuff.)

Show threadAdam Shostack  Mar 16
@jbaggs yeah not that stuff. Updated my post.
Show threadAdam Shostack  Mar 16
@jbaggs Also it occurs to me that I should cc @raph who might have forgotten he ever played with the concept ;)
Show threadRaph LevienMar 16
@adamshostack @jbaggs https://raphlinus.github.io/personal/2017/10/12/what-im-working-on.html if you want the most recent link, it points to stuff originally from 1996.
What I’m working on at Recurse Center

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Show threadDave Wilburn Mar 15

@adamshostack

Possibly helpful:
https://users.ece.cmu.edu/~adrian/projects/validation/validation.pdf

Show threadLester WardMar 16
@jbaggs @adamshostack The whole “gravatar” concept is sort of like this, isn’t it? They are basically visual representation of hashes of e-mail addresses. I don’t think the have a great term of art, though.
Show threadAdam Shostack  Mar 16
@wordman @jbaggs I thought you could stick what you wanted in https://gravatar.com/ ?
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Show threadLester WardMar 16
@adamshostack @jbaggs Maybe I'm thinking of something else (or maybe how it used to work)? There was some thing that made Space Invaders-like avatar icons based on your e-mail address. Was essentially a hash-to-icon sort of thing.
Show threadjbaggsMar 16
@adamshostack https://www.youtube.com/watch?v=NOG3eus4ZSo&list=RD4aeETEoNfOg&index=6
The Smashing Pumpkins - Tonight, Tonight (Official Music Video)

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Show threadAndrei KucharavyMar 16
@adamshostack @jbaggs The closest I know to it randomart from sha keys generation.
Show threadRick CryptosmithMar 16
@adamshostack @jbaggs The swirling dot display hints that some sort of random (encrypted) data is being exchanged. I don’t see anything recognizable that might highlight a change, assuming you mean a malicious change. As a lazy human, I generally compare a few easy-to-find blocks in the field-the obvious technique. Bbut that doesn’t seem to be what you mean.