DOCID: 3565449

TOP St!C:ltff EIBER

The Special Felix System BY 8. KULLBACK

A report, wtuallr hi ill origtttal form, of tM 8MCCUB/vl ottoU ~ °" G~ ~ ~ tfl 1'14!. -

In German dip~tic meMal8I between La~ Marquee and ' • Berlin, reference waa ma.M to a Felix who waa apparently a German

aaent in the Union of South Africa. From the traffic read, it eeemed that Felix had available a low-powered radio transmitter by meam of which be could eend to the German Conaul In Lauren~ Marquea, who then eent on 1uch communications to Berlin. Berlin, by means of a powerful abort-wave transmitter, could aend messages to FeliL From references in meuaaes read, it waa known that BerHn waa U&lng the caJ1 sign ARZ in ita tranamiaaione to Felil:. We had several flatll'8 messages intercepted from ARZ, and in fact one of them began FELIX ... , which eeemed definite proof that this waa the tftfl\c re-ferred to above. •

rtl'ILUUlU.aY DATA

On March 29, 1~ we read a message from Lauren~ Marques to Berlin, oriainally 1tent November 1-i, 1942. Thie message read.a as folloWI:

"Secret Government Matter. In radio traffic, Felix is substituting letten for the numbers of the code: 1 .. E, 2 - I, 8 ""S, 4 •A, 5 • W, 6-T, 7-M, 8-0, 9-N, 0-G.

"Inordertohaveanother eygtem for a poesible case of necessity, the Ro.emarie ay1tem, not as yet eenl to Felix, is transmitted for your information:

"In the Rolemarie system the Ro8e code is changed aa foJlowa:

"l. In the ScJM~. that number is to be looked up which stands two placel removed from the number to be replaced.

"2. To the K'*""'PP"'• in ~ition to the fixed M wbahJ ol _the ROM oode, the following numbdr ia a1ao added: 89198 91870 (Sep­tem~ a. 1989, outbreak of the war, and 1870). Otherwise everything exactly u In Roee code.

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A.pproved for R_:\e;:.1~e bv .r·.,1;!;.~11 JEi-05-2009, FOi.A. c_;a~.e rt ,JLLL4

Aooeal #3370

TOft 5£CftH EIDER

DOCID: 3565449 ,OP S!ERET 5!1DER THE FELIX SYSTEM

"Ezample: Desired Groups: 33651 13505 11098 21958 etc. Selected Schlilssekalil: 4807135269 Intermediate Text: 71622 48764 82610 69612 etc. Secret Text: 35499 07340 etc. Ken.,,,,.U•"n-: 29346 39154 ."

T6P SEERET EIBER 2 ,'

I

(b) (1) ' (b) (3)-50 USC 403 (b) (3)-18 USC 798 (b) (3)-P.L . 86-36

S. KULLBACK TOP S!C:IU!T E18ER

3 rep SEERET EIBEA

DOCID: 3565449 I OP S!CRET EID!R THE FELIX SYSTEM

l9P SEEREf !ID!R (b) ( 1) (b) (3)-50 USC 403 (b) (3)-18 USC 798 (b) (3)-P.L. 86-36

S. KULLBACK 'FOP SEERET EIBER

5 TOP liEERE'f l!l"!lr

DOCID: 3565449 TOP !fC:lt!T El.,!R THE FELIX SYSTEM

TOI' m:1tE'I' EIBER 6 (b) ( 1) ('b) (3) - 50 u c 403 (b) (3) - 1.8 USC 798 (b) (3) - P.L . 86-36

S. KULLBACK TOI' !f!C:IU!f El8E-R

7 f6P 9EEltEf EIBEA

DOCID: 3565449 IOP SEClt!'f E191i:R-. . THE FELIX SYSTEM

TQP SEERl!T !IDER 8 (b) ( 1 ) (b) (3) - 50 use 4 03 (b) (3) -1 8 USC 7 98 (b) (3)-P .L. 86 - 3 6

C! '1711"'FI' 'Tl&l"t- '

9 T8P S!t:R!'f !lr>!R

DOCID: 3565449. TOfl Sl!fltl!T l!ll'l!lt

...

TOfi S!OU!f EIDER

THE FELIX SYSTEM

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(h) (1) (b) (3) -50 USC 403 (b) (3)-18 USC 798 (b) (3)-P.L. B6-36

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