ecryptfs-rewrap-passphrase(1) on Linux
The text 8daaa3b975b2, as Arch Linux 2026-11-01, Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
unwrap an eCryptfs wrapped passphrase, rewrap it with a new passphrase, and write it back to file.