2025.12.28 12:28:11 (Mastodon 115797189687431437, Twitter 2005254462504583171) from Daniel J. Bernstein:
Some security features of the https://lib25519.cr.yp.to/ed25519-cli.html keypair/sign/open CLI (ed25519 package in Debian etc.): if verification fails, message opening guarantees error code _and_ empty message; no parsing-dependent add-ons (headers, comments, base64, etc.); works with NOFILE=0.