DF-114 'Cryptanalytic Device'

5/17/2018 DF-114 'Cryptanalytic Device' - slidepdf.com

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F Ilit.'Docu.tlo~ 2795

1•. he attacheci is an t:rmy Security Agency translation 0 TlCOllDocument 278,5te . J.9"Gel"n1ml it ~::II Technicsche Erlaueterung zur' masch' nell~,n Bearbeitungvon

,1 1' 1 Kom rcui. stexHoe ung auf 5er 'l'exttiefe' (T'ec nic6.1 no e on machine treatment

of ~ ....1 _ ..... 1 ,20...J compl'Ocised te ...3 in depth of 5 Lfor keyJ) " .

2 e Thi!3 is one of the .report.s 0";' the Sign.al Intell:.i.gence ii.g€ncy of the German

Arms-Higb ·..omaand (OKUr' 'A/In 7/VI)D A.s ' resu.1t ·0 £ information received. by V.co:.:11".ary Intelli:renc: . Service, Auetria, they weN: found bu.T'i~din B . campt at alasen-=- -

b ch,.Jlus!iriu, and w f I rardcd tbrcugh ".sA~";uropeJ to TlCO at LSlC in 'ay 1947.:.

3.~FroJ~ this pa ):"t e precise purpose of the device is nobcls.rU"J

neither is t.he. c . _ nner in -.~hicbit :i.s supposed to i'l.lpction. Apparently itwas devised t recovere ~~'. i.r:gs 0': the '_ ('9 by usf.ng 5 rnesr.agea ~'J':'th known or assumed pla~n text 0 i,!JparGr:tl3'

t1 '.Jlite. is noi, Q train'3d fJc hardcaL engineer, ne' "her doe ti'is appear- to be '

bl • rint ....or ccnatauetdon purpoaes , Rather it appears to be a desC!l"iption resulting fran

_c.~1!81use of the dovice ( the words "1. Konstruktion'l or, the plat· sbowing: 'c.haSpr'llng-t,abelle ._a. ten may akso b interpreted to mean that a working mcde.Lexisted) e The

V"It)'..I~t take 80 ml.wh for granted l o i 1 £ . t oilly one fnmiliar ~'Siththe device can co prehend

. : . t l~oadily, One pL'lt e bears the date 2904..19450

4" Asid. fr;om its technical.6rits,ii' an:!, which rnu.st be evalu&t.ed by experts, thepa. e is of interest £5 an example of Ger .:t:ll1crY;)tenalytiC' .......echanical aids D Io ,

rare. encest'D he use or even to the 8xistence of such a l!gadget1 i are--recalled in other

1'1 0 . ) . ' mf.ltez-inl. Furf~her inforn:atio 25 to .(ho r'binated the device, the status of itseve1cpnen , and thl~dis ositi n of cny models constructed is desh"ahle.:-

~:r J,.at d: R.. \ ' . r- , 25 copies: Copy iloL:'3 . 1 , ril 1948 l~ pagea

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T 2185D F - 1 l 4

l'!'Ieehn1cal Note Oil ma.ch:ine t.reat.m<l1t of'

in epth of . 5 [for key].

1onpromiaed texts [oribs?)

Doscription

The apparatus ron8~ s of three r

• Sprung-Kasten ~ .p box, a plu~board?]

2. Vert iler [Distr,i buta].

3. Se tapparatur [Sl itching device]

T11el~are also ssverol auxtl1ary parts: lan1ppanel" Set ..b tt [pluG' card?],

batteries, :rectifier t..

1.) The Sp Bka-sten couts of 120 switch pa;iticns\bich can be opened

by PrfSSU essurci3 applied by cylinders wnted above, Into

tho mea ad metal strips (lugs) belonging to t e indiv··dual

ki iv cylinders ar so elotted in 26 SVGnJ,y eli tribu-.., po- tio s

thutt lugs cnn bEl!nsr'ted. Each slc:t. . is div1d d .intto t~6 pasltiona

c rs pending to the ass d four passible 8._ - 5 a . skip 1ch cons' ts

G 6 co_ onEils corrasp~mding to the six lmeelB of t e All1 or B-209o To

each of' the 26 slots corr pas a skip. On the out sur ace are

inscr'bed the alphabets eo that the cipher text. can be set up direC":;'

men a plaintext has been ,sat. up, For this purpose the cylirder lwad ( )

is divided mto tw o parts~ t~ disks, on one i the numbGl"ing, n tm o " - er

the Ipha.betic division .

2.)ertiler.

Thepurposa at the distributor is to sean aU 45 eo ina.tins" To

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accomplish this ther i a.tl9pped. ndvancQ,ot the iva ''Ibee'ls corr ,ponti-

i:ng tot five c:ylinderso Each d1sk 15 divJ..ded on one side into tour

sa .'. lated from one anoth3.~ (6 groovas):f! and. on the other into

six contir. us gl'ooveso BGt eon thesCl to di6ks fllOV a an arm (Zeiger)

'-lith. c~bc contacts which can ect t 0 gr'oovea, one abow the ot.~er.

.According; to pooition, fir t. the first segment. then the second segroont. etc.

is COImi ctad through. the ca. bon bru hes \'Jith tho clooed r" goO

For tIE e1ecti e setti.~ r£ . 5th sldppcs sib.:.Jit: tho l.et.d to the

s,'Jitch d _" 1 . ' " 1 aga:ln into rupted at the tacs wBll and the lead can

"'0'" e'tter on ' or' 0 [-}, .. us cu.tting out the ...tire distribution. From

3 0 Leada ru to the ilctua1 51 t han g d,ey e:

3~) Sch . pparat.

Tba s;-dtching d vi.eo consists of 6 test ci.L cults (Dislrusaionskre' e)

cor . apot - • :g to the six l ala 0 th '10

Dscr:"ptlon of the _6 ' circuit: ( er .• aheat l)

1). ','est.,circuit,: (red. linea)

t,he plate battery the current co B into thls'::. r - eUw . According,

to .its aet"'iI:g the 1'19183'is oitha' at rest or ei srgizecl, duo to t bdas

At rest moons the - posf, n is ~nzi.tch d in (n OU1 " dia1ram

Then a s cord. s i:~eh poait-im, con sis ticg of t'Wora,lays., .;st.!" bute the

current 'urth6l"" thenCOI!.l.olfour ralays uired in parallel, then 0 I"slays,

the 4 .. tches (Schiele-Bchalt-Schutzen). Finally 3 2 lS:ldq un to a like

nlJ!li)er o r ' .amp sockets. I the current is 9;) directed that '~here it must

throul.;h a lamp (there t'ill be only one possibility), it tlillbe able

to pass to the secord teat circuit ifthere is e. l1.mpin that .sockBto

If no lamp has been ineerted in that rocket, thecuI'l'"sntconnot go

bayondard the ease ~s@.~ StEvG.RtEs '{~t t circuits an

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indicator _ 1.v is operated. This lies ahead ot the Betrieb [ J

inBueai. fa.9hioo that the indic tor lEmp ebes not. light up. The relay

brought into this po' tion by asmtch. If current 18 f'losung through

all six test cireu.:it.s-, tha ~el~ is thrO\\t\ ~er and the lamp burns steady.

It can only be ext~iared again. by a 9wit,ch.

2.) Bias (;rellew l:in e )

Ql.scoll of eooh re1£W"is alwlzyS on 12 volts SO l thot rsst pcaitictl is

sse d then no cont . 1 eur=-ent results. Springe '"Jere woided eo as to be

able to regulate this volt.c.;;~eby the £Lp~ied voltage according to the

110ricing spa ed

).) Zero-potential (Ground)

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GO 0 00 Q

~o 0 0 0 0 0 0 0 0 0 0 0. I 0 0 0 0 0 0 t Q

o 0' a o 1000000 1 0 00009

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Expl.t1m of sketches: sheet ~, 2, 3 and 4

Gemral: '1 ' 06 colors are ed' Gr n = Steuerung (control)mUG = lQ..Potential (ground)Red = Ui kus ionskreis (test eirc_ it)

Thcn'a U3BO the bias (VorSpamlu."'lg) Vlhich b!longs to the control circuit"

'Vharo eo asa.ry t is bias is shoY in yallG/ ..

Shoot 1)" Gmeral wrvey. The test circuit ro r Iheels 17--26 ha the ro1-

1ingin ut and output. leads res_ . ctively: test circuit, bias, grou am

control circuits ~6 to V170 After ~m test circuits l.os tho :1ndicator relay_

T e cont.:ro curren'- ar-e eondlcted through the Sprmlgluist-en 1.U1.dertelle:r.~

(91ug oa-d a distribut.ar)" F m the atterya lw.d (24 v) I'UDS to too

_' ueboal'd.

S·e t .2)" Sprungkasten' ith th ~~ividual contacts" Each of the fiv

36 to act a t . . 24 eont.aetc , Tmse cmtacts designatod:

I 26 toV 17" In he str.1b tor

(She . 3) t.!-.9s •120 curr . s are canned one aft the other in such mann_-

th.at gro of 3) w:;u"ktogether.

Sheet 4) < > S is hoW con ro1 and teatcircu1t3 \vork tOB6t~" Ca:."'emm 1. 0 be

t...n to inmate tho vari<p.a cir cu1ts from onanothsr and between t

aevtJral olta~. T. sample ca.e on _ efft 4 shol- the functioning o,.fth.3

e.ntire p. a.tus. By the d.istl"ib-tl~o!· and the plugboard tte vertieal co'lU!Jn~

>t) set, b tha toast cur.rent the horizo.nt.al: secuenees ar-e examined.

O n t e PrU ~.t al sheet, t. I

dis ribut.oris shcmnin graater deta..ll



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Circui·t DiagralJ \"lith Da 8

90 Volt

1

1

Sliitc

Relay

T es t Circ uit

Bi .58

Co nt ro l Circu it .

Control Circuit:

o

Bis

I n d i c a . tOi'"

12 Volt

r

Ind.

Extinguisr.et ?

24 Volt

~~

Skip box

• W . s t l ' ' ' u t o r

24 Volt

2 4 V o l t

90 Volt12 Volt

118 Ohm

237 O hmI=.6 Ohm

3 0 4 O h m

...mumcurr nt passing through

t o 1 c o n s u m p t i o n ?

0,,23 Amp..

00 0 np,

0,,78 Amp",

3 0 5 A m J iJ

55\] tt

2.,4 :: t tt

70.,0 ',1att

4200 tia t

1 4 , , 3 1 Amp_~

4 4 8 Wtt

DF-114 'Cryptanalytic Device'

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