Skip to main content

My Favorite Exclusive-Or

Low
Published: Thu Sep 04 2025 (09/04/2025, 19:44:10 UTC)
Source: Reddit NetSec

Description

I took a bunch of bits and spread them out into ARM's neon registers and then did cool math on them to replicate the effects of an exclusive-or. It turned out to be way faster than I anticipated. I then wrote unit tests that take advantage of generative testing with Quickcheck to make sure it actually works. I had never seen Quickcheck used to unit test inline assembly but it seems like no function using in-line assembly should ever not be covered by generative testing. I love how readable this is. Honestly, the Rust tooling is so good that I never have to write assembly outside of Rust again. I can't really think of a reason not to, don't say file sizes 😩.

AI-Powered Analysis

AILast updated: 09/04/2025, 19:54:05 UTC

Technical Analysis

This content has been identified as promotional or non-threat material.

Potential Impact

No security impact - promotional content.

Mitigation Recommendations

No mitigation needed - not a security threat.

Need more detailed analysis?Get Pro

Technical Details

Source Type
reddit
Subreddit
netsec
Reddit Score
1
Discussion Level
minimal
Content Source
reddit_link_post
Domain
awfulsec.com
Newsworthiness Assessment
{"score":27.1,"reasons":["external_link","established_author","very_recent"],"isNewsworthy":true,"foundNewsworthy":[],"foundNonNewsworthy":[]}
Has External Source
true
Trusted Domain
false

Threat ID: 68b9ee5b88499799243cac4b

Added to database: 9/4/2025, 7:54:03 PM

Last enriched: 9/4/2025, 7:54:05 PM

Last updated: 9/4/2025, 11:23:37 PM

Views: 4

Actions

PRO

Updates to AI analysis are available only with a Pro account. Contact root@offseq.com for access.

Please log in to the Console to use AI analysis features.

Need enhanced features?

Contact root@offseq.com for Pro access with improved analysis and higher rate limits.

Latest Threats