Seriation

$ echo "Hello sci.crypt community. This is a test with seriation." | seriation
Preprocessed text in lines:

HELLOSCICRYPTCOMMUNIT
YTHISISATESTWITHSERIA
TI
ON

Seriation:

HY ET LH LI OS SI CS IA CT RE YS PT TW CI OT MH MS UE NR II TA
TO IN

Seriation was used in the German WWII cipher Doppelkastenschlüssel
and I thought it is pretty cool. However, I did not managed yet to
understand how encryption and decryption works.

--
Regards
Stefan