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,. · ··'<. ; · · ,-'.-~/.. '_: · .. Th~.~~μ,9.~~. is_ qu~ted (wi~h s~i~ht ·modi!i~ation~) .·f~om .. a .. · '. ;~ 'l 

· .. ·: · ·ln~or-.p~~ prep~e~ .b1:.lllf~~¥ •. ~,P ;Febr,ua,ry .19, 19~z · -~ ·.. . .. :'i .~ 

. ... . . · ... :1r." .. ··.-:,:~~ ~ -~tt~; ~;.:;f;t~i~· lrec·~ra · ("i;~~au~~ ·~-~~;ei f~~~~~~· · ". . . .. : ~·;;.) . '.ot "th~ ··Edu ~k ±r 8.r~~-to·o:·5·~~ret 'to. pat~nt) .. am tO ~uppiy the ;-.·.- ·; ·1 .· · .. ·". ·· .. :·.·. ·:· 'b~qk~~o~ri~,' ·of. -t¥,s,· ~~y~c~e.; tfie .. ~9μ.~~g historica+.. skl!t.~~ ... ia -. ·· ·-<.r t 

. . . .-.: ·.g~ ~~n : ... : ..... _ ,.. . . " .. "."-:_. . :~··: ,::, .' :· ·: r . i~-:.· ... :,; ~ <- ~~ . : . . . . ~ . . ~ .. :~~-~. ..... ....... . .,. -... ~ .·.~.: 'i ·~ •. :: - .. ·11 (A) · 11r. l!'d. Hebern of Oaklan.Ci, Calif'. · ·~ 1.. ' ·· -... . • 

· .. : . ·: .\ · · · · · . · • · ·· : I · . . .. · · ., :t· · . .. . ,1 

···:.~ . ._.; · .. '. ·-,~~~i'~in.ai··in\f~~t.o~: o~· th_e· ~i~c~ric <?!p~e~ *-1at:Mne~ .. -~.on- .. ·. ·"<.f 

:· · ·_25isting of ~eyl:>oard, printer~ ciphering uiiit. and a two-~ay .··;. : 

......... ~-~Jencip~er:-ctecip~et' gan~f s~~-~;ti; an but th~.·lati~r ~'~~rg .... ! 

•.. , .. . ,. :Q~l'\l:e:r:ed bY U .s. ~~tent. N;C?•. ,1,_510,~ dated,, ~epte~ber. .30_,.. . . , · ~ 

: .· ·: ·:: · l??-4.. _His ... cip~eri.ne; 4~ co~aistec:l .o!. ~ever~l rot~t.ing,. A 

_ . . .. : .: · . Circui ~changing ·elements {patented under the nam~. of ~ c;:.oc;:l.e- ., ; i 

. ·. :: • ~ . . : · Wheels~ ) arrafig~ed· ··.fu· • se!ries f. (Or . I Cascade I ) J between fixed. . . ' 

. : ~- . ~ . : '-~?ld.: c.?J.!-~~~t p~ates .' ~ Wi~? ;i~s~~ting" se;par.~~oi: piate~ ' ·. . ··~ ·.· · . · ··< (carrying through contac~.s) between the code-wh~ela •. ~e ·-1.: 

. ' · · : code-.:whe&l a tapping· was· mechariic~liy coi1troiled and was ·ot . . 

ii."" 

, I,•· 

modified meter S:6tion.· ·.About 30 of the aecond .. 16t 6£ Hebern 

Ciphe~ .. ~?~:\.pe~ .·c~ov/abo~t. ~o ie:ar( old)_ ~re. aii..i~. :1~!· .~, .. . . _eervj.c~~ ". i,17.e_ ge~~~~ fefJ:t~ea _9f· tl'lia .ma.chin~ .. :were: ;;:~: ; __ · · su~s~q~ently ~e~~nv~~~~djby o~n~rs and pate~~ed in .Engla.ild, Gerll'.any~ Sweden, ·and, probab],.y other countries. Silni;l~ • . . - "" • I ' . • :... . . • . . '. • 

mac}:iin~s have been .cons·tructed abroad. ·· _. -· . I . • 

0 ' ' ' ' I ... : ' ". •' ' • ' ' ' . o ~ :• ', ' ... ; .. '0' • I 

-... ·. .. - .... . -. .. ••or the "essentiai elements" which ~e embodied i.n .·the' new 

·' . 

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.. · .; ·.' · ", ..,-.·:·.:_ECJi ··i&i.rk ·rJ:, lir.' Heb~rn invent~:· -.:- .. ·. ·' - , : ' · ,· · ·. : . . .··<" . . .... '·. I " ... -':;I,.;_'.: .. ,::-\''.'"•. •',~'"l,'~'!,"1 'loll• : ·.'·I.'~·,,•' ' i • '• ,• ·:' ',• "••I 

: · .. · · -~ · : : .' (1) The ·'Code-wheels~ . . .. .. 

i 

J . ,·, · , .. : .. : ,. (~"} ~ The ·.,.Alphabet.· Maze• . .. · · · · ,, (3) Tne .. 'Ele_c .. tr.ic .KeybQarci• .·ii ,_ 

. ". . .. . . . . .• . . :. . f ~ ·. ..:_ . . ~· ... : . . . . ~ . . --: .. ' • . · ... 

:·. · . 

.. Note-: .It i_s_ ~ders:t;ood t.ha~ Mr •. Hebern has submit-ted,: othe~. · 1 •••• ··patent ·applica;tion_s·, 'inciudip.g the ·two-way "encipher~ecipher" 

\. · · · ·~ .. ·.. ; gang switch •.. ::· " · , .. ··i ·; . · ;. ..· · >· · · · · .. · '"°i · ... · .. 

i ID~classified arJd ·approved"fpr rel.ea§$. bY. NSA f~ ·0~--~2-201 ~ .. pursuant .to E:.O: :1352§ . . . . . : .l.:~. r 

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. '· · ,: :'.· (1) Printer (adaptati6n oi sto~k t'i9k~r). (E~seniiai .. : . · Element.) ·· · ·! ',_ ,··.·-. ~, ·: · .· ''·.· :. -~~- :. 

'. · .. <~-.: (2) General layout (basically similar to t cipher unit'-~ 

.- .~.~ __ ·: . · ·. . o:f" ~CM .u:ar~ l) ~ l · : , :. ·.:>-.: .-~ . '· .. · ··. ,.. .' --¥ ·1 ·._.· 

< ·j 

• . ~ ··;:;. '"": (:3) fowcr tμlit, with -c~-8haft -.nd cl-μtch (adaptation . -·• :: ..... of. aimliar unit" Of ECM Mark I). -- . . - _ 

•. ' _ •: ._ ."·' I "(4) 'Tri&gering ac~ion' of printer magnets omd ~epping . / ._• ... !., .:-:~ .·• " < <( '·:. <:; '"· .. ' magnete.. ' . ! . . < < • ; .. • • ' 

•••· ... • '·\: :} •• ·~ 1 · .. (5) ·Automatic ·group' Bpacer •. ~ ·: · .. : · . ... · · , .. · 

. : -- .- ·. ·,:·'i~~;: .. :_( 6 )_ The th~ough contaqts. in the s~parator plate a . . ,, : ·., · .. 

· · ·;- · ~: · . : · :. ''. (identical with EqM Yark I). This_ 1,s the op.~ type 

: .... : ' -~··.:.~~: -~. .". or thi-oμgh contact: that has proved :sati.sfactory. " ' 

'.. <. ·.· ' ... :"(7) ~ecep~a~les <and c~r_cuit~ for ·~arallel operationi" •. · 

. ··-.. r'.-(8) flace finde;r. i . " ·.- , .- · .·: ·:.. · 

. -. '" . ._,, · ( 9) Clutch t~ip magnet; contacts, and ol.:.her miscellaneous I • • . , ' I ' w I 

'.,._ ,· ·· , ····. · · ~\μtiliary mecha~;tcal. feat urea." ... • •. .. = .. !.. ·~ .· . .J ·.. • - .. • • • , :. .• • - •. I , . . . -. . - . 

_,.. ... ;i :···~~·''>"'·:·'hi~ ~~t·e~t a;pllc~iio~\(in secret stat~;) for the}UA Mark II. 

eho~~ irn;:Lude t_f1:e f"ollorlng 'fea.t~es; · . · · . · · . . . '',., '•'• -. .-·.: ', • '" ,·~_;·)·~"";;·, -' .... ' .. ' • ~• ~:', :··~ -»,: ' '_ • •' • '~ : ... I l ' 

· :(a) Invented by Lieut. Comrnande~ Donald W, Seiler, Washington NayY Yard. -. ,· --~--- ·i~· ~(A<;idre~~ 1524 Ridge P18jce,_ ~.E_., Wa~hington, D,C.) • . . 

. • ' ·. • • , • • . 'i ~• "Ill " I'. , '< • . • - • • ' I ~ 

. 1 · · "(i) tiindeX: _Maze"~· · ;· :- .. ;. \ . , '.: .. , .. 

·. ··: . .- ; ·> ;.(2) ,Ci;r.~~t~ (C¥1d ~esist<j.n~ee) f_o~ ·115-volt DC, 115-v?lt,. ~c·, or 

· . : . .• -~:• :.; ... .:' <<.24-volt DC tb~~t~~y) oP,er_a.tion - ~ option, ·. .. , .. ~. · _ (3) .filnorgency Hand Drive ~.. · , . 

< : "'.':: ··.(4). ~ut~:t.'ic. WorJI; .$pacer, !rh_erein_. u4_n is ,substituted ~or « . _ .. . . ,_,_:,· .. }:: ::.rs.P.~~-~~ an9: ~xn __ fo~. nzn .. :upon-1'n~ipherment; and "~p~ce11 prints 

·: ·: , .-..... :-.-_ ~. ::'.;. ;:ae. .. '!.space" and nz'n. a.s "X" on deelphe:rment. . · -· .. -., ::-·>(:·· ;_)(5) uzeroizer Slritch". : ,,. · ~ ... ·· · ~ -~.·t~.,-'-r:"··~--·' f;'·/'"·."~1"-:."·.)~··.,,' ~ • ... • :-;;, JI·.~~ : ,:;[,:, • ',·· t 

... -· '.~ _:-(b) Invented b "ca .tain La~anc.e1 F Safford Na De art e t 

'': .. < :-.~~-··,.·,>~: ~Y?-~ ">'. r::h:·, :~~~~~s.~.:-~J~~~ ~9,~~~r A~en~~t; ·~··;fli-~, ~~~hi~~o~, ~~~·~ r' . 

". ~-·y.:: ·'~_::~, < • ;_·_:(l)°"r?~~pp~ng"oirou}t~li .. w:tlb. th.,e grc.uping-.o~ eri~ conf.~qts ~the, 

.. _·. · ~:· ·;_· .. : ····: . ."';"~.t~:pp~ maze" .. and_~_;":l-_ndex ma.ze",. the utD:-iza.tio~ or 30 

. :.:~-'- . : · . . : · ~ ·qut ... <?f 32 pol!IBible 1!!~!9pping comb:liw.ticm~ . in tP,e 11 al:ph~bet . 

. , ... ~·, ... _./~: .. ·•,, :-.<}i~z~'r,. cqid any ~r1a.~1or~: the~·~.ot~, .. . . .. '"':; ·; .;-:~i ·< .;; .. · (2) Three~l'@y 11 Plain-Enaiph~r-Deciph~r'' gang switch. ·. .. . . · 

. ' .. : ··;· ~-.. ~ _:.,:· <(3) CoP,e-:vfh~el ~et~;tng circμits (in!!=>lying the 1izeroize:r eiwitc~ 11 ). 

,··'· - ·:.-" , -. · ., , ... ;,(4) "Zeroizing circuitsu {ipvo?-ving the 11 zeroizer swit~_h~ ). . 

;:·.'~,· i:··. ~:.· .. ··.·;';;'.~".L.~~.<.:;-~:.:~~.:]._~:~ .. ·!~~'..'''~:~::::_~:,·,,:=~:: .. ::' ,:-'.· .... : ,,~,, O ':; •.. ' O O ' '' ' .- : ... \ '·. . - . 

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