Hebern: 3rd Problem

Munitions Buildings, Washington D.C.

Signal Intelligence Service

February 13th, 1931

My dear students,

Here a new problem. The topic is the 1812 war. The
rotor order is known (1:4:3:2:5 the second [4], the
fourth[2] and fifth [5] rotors are in Backward
position). Your mission is to find the initial
rotor position and to decipher the message. The
machine is set in cipher mode.

W.F. Friedman

XRKIG GIGDM KXRCD CRZZX HWRER VDKZT YZLOR XVXZF XAFKL DZACB

KUVLT PMDCZ ZDTYO NHLHG DPVOS TKBIA POOVH FPCYJ BYYCA UMTTN

PZRPQ WLSRX HECOB ZCLQL CTZKS DSUUQ VXZHC UMRUR WSIZC DRGRY

IQRWK DBDGP QGMPE HDDQK KBQSP ZBTNZ JWSRB UOLGY CCDMQ XMXBO

XXQBI VPLXX MWCIV ONFAF FIIIM DPPNG SKRYT VHDDO CXSOM LHZYQ

QPYJG LDGOB WKPEG DEMNK PKARH KYHPV JENPU FCOXN TQYKW LNCYC

JXRXD CMWWT NISOK GXXXX