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SEOOND INTERROGATION OF UFFZ. KARRENBERG OF O.K.H. ON THE BAUOOT - SCRAMBLER MACHINE (I BANDWURM' ).
Attached is a report of the seoond interrogation of Uffz, KARRENBERG by Capt. ERICSSON, I,C., at CSDrc (UK) on 14th Sept. 1945. For previous report on I~G, see Tioo~I-30.
1$
Copy No • ••••
Tioom
.3 No. of pages •••••
,
2.3. Oot. 1945. Distribution
u.s.
Bri tish 1
D o D• .3
2
H. C.G.
)
DoD.
4 5 6 7 8
Op-20-<;. (2) (via Lt.Cdr. Manson)
G-2 (via Lt. Col. Hilles)
13-15 A.S.A o (3) (via Major Seaman)
10-11
12
(N.S'l
16 lDircotor, S.I.D. USFET
D.D.(M.W.
D.D o (A.S.
C.C.R.
17
(via Lt, Col. Johnson)' Col. Lewis Powell, USSTAF
Major Bennet Odr. Tandy
9 Ma,lor Morgan Additional
-TICOM 18 Chairman 19- 21 S.A.C. (.3) 22 Cdr. Baoon 2.3 Lt. Col. Johnson 24 Major Seaman 25 Lt. Odr. Manson 26 Major Cowan 27 Lt. Fehl
28-31
Ticom Files
32-34 Mr. Pritohard (3)
(4)
~,ppru\,l'ed for Release bV [\]SA, 0
~J2-CJt;-2CJOS FOIA. Ca::;e # 135Sf~
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TlCOo/I-153
The various ques tions o.sked and information obtained in the
oourse of' genernl disoussion oan be most oonveniently put under!
separate headings.
T,ro.ffio i
p.W. stated thaL ho believed. the tBondWurm' traffio was first
intercepted in 1940 in Warsaw. As far as he had been able to mdke
out no interest had then been tD.kcn in it. The first o.ctual kn~
ledge we had of 11 tra.ffic with the somo e1Cternnl features (ohat;'
indicators, etc.) was in swnmer 19l~3 when the first ,ronl intorost
was token in it and the traffic wnB sent to Berlin for nna.lySis~
He unders tood that it wen (; to a Dr. Pie tsch nnd DOring.
..
There wero a nwnber of links usually varying according to,the
nwnber of urwies (li'rontsto.ebe). The mn.xilflWil nw.1b~r wo.s 8. One ;end
of OD.ch link WM alWo.ys in hoscow, the other would be mobile, and
moVe wi th the arndcs. There; were l:'..lso onc: or two Airforco links.
Thera wvs also sltpposed to be 0. link with the Far East., Traffio
Wo.s heavier from the I outsto.tions' to Lioscow.'
Method of transmission. . p. W. wn.s oonvinced tha.t the mc:ssD.grn wore sent by hand mo.ni
pulatioh of the five' Baudot keys to rnD.ko up the required letter:
pn.ttern. 'l'hf;l speed, on on avorage wo.s 200 letters (J, minuto (vo.ry
ing from 180 to 230). Romn.rlcs ,-,erc oi thEir sent in olear before
trnnsm.ission, enoiphered together with the messages, or most
oOlllmonly sent on the seoond chromel. P.W. rog!lrdod tho inspeotion
of this other cho.nnol D.S essentiol for r:ettinq: the full story.
_ _ _ _ _ _ _ _1
~.
From
I
lather indico.tions in tho cho.t
the mcssD.gc:s were round to bo rcoonnD.issance and opero.tionnl o.rrny
trD-ffio (no nava.l or diplomatio messages WEJre seen). A oerto.in
rumount of pruotioc messaGos were also sent - excerpts from ne~
po.pcrs, Routor nnd Tl~ reports and privo.te oorrespondonoo. Ad
dresses sent in cipher were novel' ruporrtcd in cle[~ unless another
type of traffio (5 fi8.) h~~pcnod to h[~o the S~lW addross - in
which cillloit' would bo sent in olenr. Hetro.nsmissions did ocour
when ant; 'outar.e.tion' wished to fJond (J. messngo to anothor. Tho
text would first be sent to Moscow ana from there relnyed to the
other station - the text remaining basically the same but almost
certainly with sevoral nltero.~ions :in punctuation, different
mistakes and restnrts. Quite ofton 5 figuro tro.ffic wns enoiphered.
~" oypher maohine On this P. W. is somewhat confused. From indioo.tioml in tho
oho.t illld from in '_on of the kev obtfLined he is convinoed that
it is a machine. I
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TICOWI-153
In Autumn 1944 both tho end of 'adder' and every pause in the
I
oi:hor proper wes :oeded by sevon key lottersl
ppe~red ~n Doce
~Jh
Then the traffic went off the air and er no external ohange except that the . I residue' letters h~d been reduced to thl'e(.;, suggesting 11' modifio~tion of tho maohine. In genoral it is clear that Barno of the features of the key a.t leas t hDvo not changed in the last nine months. re seven
Sinoe Deoember 1944 r.w. ~ solely reponsible for this
traffio tmd no other work was done on it apart from that on the
spot.
The security preo~utions in general were not regarded,as ; good and the Airforoe limes in particular were veTY slaok - though oven there no vital clues to the system were givon away. I
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