Who developed SHA-2 family?

Josh

3/7/24, 2:24 AM

When I look up who developed SHA-2 family, the result I get is along the lines of

SHA-2 was first published by the National Institute of Standards and Technology (NIST) as a U.S. federal standard.

What I am really looking for is "Which individuals have developed SHA-2 family?". I understand, that most probably there are many induvial behind its development, but like any other scientific endeavor, some individuals have contributed more than others. So I am really trying to know what individuals have directly contributed the most to the development of SHA-2.

I hope the answer provides a broader perspective on how we can identify the individuals who have made significant contributions to a publication developed by a large organization, such as NIST.

0 + 4

sha-2

DannyNiu

3/7/24, 4:12 AM

NSA designed SHA-1 and SHA-2 behind closed doors. <https://handwiki.org/wiki/SHA-2>.

samuel-lucas6

3/7/24, 9:09 AM

The fact that the above doesn't apply for SHA-3/SHAKE is also [noted](https://keccak.team/keccak_strengths.html) as a strength by Team Keccak.

Josh

3/7/24, 2:38 PM

but why behind closed doors? I assume they knew it is going to go public and I do not think this is a classified material. Those individuals should be proud of their work, so what was the problem with revealing their identities?

Maarten Bodewes

3/8/24, 12:06 AM

The *why* can often only be found by asking the organization (in this case I don't think that educated guesses will suffice). Usually that is tricky when it comes to the NSA. Sometimes information may leak out, usually *after* an employment has ended and the person sharing the information feels secure enough to share (e.g. the information on how the SEC / p-curves have been created has been shared, although since they claimed to to have used a random from a HSM the information is still impossible to verify).

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Who developed SHA-2 family?

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.