Tspi_Data_Seal(3) on Linux
The text d1885c1c7e15, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it. The page shows this text now.
encrypt a data blob in a mannar that is only decryptable by Tspi_Data_Unseal on the same system.