krb5_digest_get_identifier(3) on Linux
The text e73affd954dc, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
remote digest (HTTP-DIGEST, SASL, CHAP) support