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Private RSA keys in DNS TXT data (twitter.com)
2 points by yatralalala 595 days ago
2 comments

Small discussion a month ago (15 points, 10 comments) https://news.ycombinator.com/item?id=41630461
TLDR: they're used as a revocation mechanism for DKIM.

non "paywalled" link: https://threadreaderapp.com/thread/1852021884902138123.html