NATIONAL SECURITY AGENCY 

WASHINGTON 25, D. C. 

Serial: 000549-S 

17 Dec 54 

rop SEGKl!:W 

SUBJECT: 

TO: Commander 

u. s. Air Force Security Service 

San Ant.onio, Texas 

1. Attached is the quarterly ( JUJ.y through September 1954) 

compilation of communications security violations reported to or 

noted by this Agency which occurred in commun~cations of those 

Air Force stations which ban.tile COMINT tra.f'f ic. You ha-v e 'Deen 

notified of completed evaluations of possible compromises which 

are reported herein as violations. 

2. This report is furnished primarily for guido.nce in 

improving the security of COMJl'IT communications. Similar reports 

are forwarded to Chief', Army Security Agency, and Chief of Naval 

Operations. Upon request, additional copies of this report will 

be provided in sufficient quantity for dissemination to those 

activities under your Connnand engaged in COMINT operations. 

3. Extracts from this quarterly ~umma:ry may be classified 

SECRET if the extracts are restricted to lists of violations which 

involve messages classified no higher than SECRET. For example, 

the list of violations connnitted by an activity which originates 

messages classified no higher than SEC13ET may be extracted and 

forwarded to that activity as SECRET material. The key list is 

SECRET in classification. 

4. This correspondence may be downgraded to SECRET upon 

removal of Inclosure 1. 

FOR THE DIRECTOR: 

~ COLO't-JEL, AGO 

ADJUTANT GENE11.Al. 

Declassified and approved for release by NSA on 05-15-2014 pursuantto E .0. 1352a 

2 Incls: 

1. C'ommunications Security V1ola.t1onl!I 

by Air Force Stations. 

2. Key List of Air Force Violations. ~BP SBOmJ!' CONTROL# 54-3502 

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... 

WQP SEGflB'f' 

cc: 

lVSA Europe 

NSA United Kingdom 

NSA. Far Ea.st 

NSA Alaska 

NSA P~c.ific 

AG 

c/s 

COMSEC (3) 

s I l\SST otll( ~\"~ COM 

PROD 

v6B 

411 

b12 

413 

Seria1:000549-S 

M/R: This is a compilation of communications security violations committed 

by Air Forr.e stations during JUJ.y, 

report will be forwarded to Chief, 

USAFSS furnished 10 copies. 

-2, 60454/pa. 

'fOF SP.eFe!' CONTROL # 54-3;0&-f 

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2 
• 

I1l'G 

030002Z 

030045z 

07002oz 

151615Z 

260005z 

031515Z 

o41205z 

21061oz 

091855z 

12o800Z 

i6223oz 

07015oz 

200128z 

200128z 

092315z 

Incl 1 

COMMUNICATIONS GECURIT"l VIOIATIONS BY AIR FORCE STATIONS 

TRIGRAPR 

AEF 

AEB 

AXC 

BHP 

APC 

BFN 

BRT 

:ox:c 

DXF 

BHR 

KEY NO. 

1 

1 

~ 

4c 

8 

14 

4d 

14 

12 

12 

ll 

8 

4b 

4d 

REMARKS 

USA-33 

JULY 

AUGUST 

Fit'th rotor· straight rather than 

reversed 

Fifth rotor straight rather than 

reversed 

Broke on ADYRI vice ADRYI 

Broke bn KHRDO vice KHRZO 

Broke using trigraph BKP 

SEPTEMBER 

Fourth rotor failed at counter 

reading 0280 

Broke ~n DLJNB vice DLJNN 

Fourth rotor failed 

USA-3~ 

SEPT.EMBER 

Key tape stuck 

Key tape stuck 

USA-34B 

AUGUST,. 

USA-38 

JULY 

AUGUST 

Keyboerd operation 

Broke using trigraph BJT 

Broke on DYWBB vice DXWBB 

Broke on FFMKK vice KFWKH 

Broke on XRFNS vice XRFNV 

'119P S!OREI! CONTROL #54-3502-B 

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• tf () p Rgpij:;J861jm 

lJ .l..!J ~ .•.:'- ~ 

q!Qi2 s:se:RBlf 

VIOIATIONS (Cont'd) 

Dl'G TRIGRAPH KEY NO. REMARKS 

USA-38 (Cont'd) 

AUGUST (Cont'd) 

25c107z CST 4d Broke on JHJFN vice UHJFN 

·290015Z DNY 4b Broke on ZDNEG vice ZDNEF 

SEPTEMBER 

o4192oz AW 4d Broke on KGTAL vice AXTAL 

l00245Z 11 Keyboard operation 

230045z DHA 1-ld Broke on HMNXN vice moocs 

24005oz DLI 4d Broke on MARLA. vice MA.RDA --~ 3013ooz EFX 3 Used key list assigned to USA-38B 

3013ooz EFU 3 Used key list assigned to USA-38B 

301555z l!:GA 3 Used key list assigned to USA-38B 

301555z 3 Used key list assigned to USA-38B 

30193oz 3 Used key list assigned to USA-38B 

USA-38B 

JULY 

- 020ll5Z ARL 8 Broke using trigraph AJL 

ioo256z CVI 4c Broke on ARTNY vice ARENY 

271205z II.Z 2 Broke on AM rotor arrangement 

271206z IMC 2 Broke on AM rotor arrangement 

271429z Dt".G 2 Broke on AM rotor arrangement 

271516z 2 Broke on AM rotor arrangement 

271550Z 2 Broke on AM rotor arrangement 

~71555Z 2 Broke on AM rotor arrangement 

271605z 2 Broke on AM rotor arrangement 

271645z 2 Broke on AM rotor arrangement 

,271759Z INX 1ki .Broke on BNPYQ vice BNPYG 

301515z JXZ 4d Broke on llZANK vice HZANG 

AUGUST 

11i195oz 12 Key tape stuck 

240204z INX 4d Broke on D'lMFV vice D1'MXU 

!eP SHOFf]!P CONTROL #54-3502-B 

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VIOLATIONS (Cont'd) 

Dl'G TRIGRAPH KEY NO. REMARKS 

USA-51 

JULY 

o81048z 13 Use of incorrect Top Secret 

Codeword 

290001z CQK 8 Broke using trigraph CUK 

AUGUST 

1010152'. 2 Broke on PM rotor arrangement 

120355Z ll Keyboard operation 

i61954z ll Keyboard operation 

SEPTEMBER 

0304ooz BCI 14 Random rotor failed at counter 

reading 1458 

07203oz 11 Keyboard operation 

USA-53 

JULY 

280045z CLK 4c Broke on XBWVB vice XBWVG 

AUGUST 

02231~oz ACR 1 Third rotor straight rather 

than reversed 

02234oz ACS 1 Third. rotor straight rather than ... reversed . . . • 

02234oz ACT l Th_;ix:_d_~otor straight rather than . . 

····· reversed! .. . . . 02234oz ACX l Third rotor straight rather than .. ... reversed .. 132153Z BFZ 4 Broke on PDCJU vice PDCJH 

24o4ooz BGG 4a. Broke on JPQFR vice JPFQR 

SEPTEMBER 

071055z 2 Broke on PM rotor arrangement 

210015Z CFC 4d Broke on FKZTU vice FKZTH 

251235z 14 Bump rotor failed 

'fOl' B~~ CONTROL #54-3502-B 

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VIOIJ\.TIONS (Cont'd} 

uro TRIGRAPH KEY NO. REMARKS 

USA-54 

JULY 

- 05042oz A'lJi/ 4d Broke on Q.KTRY vice QKLRY 

06163oz BMQ 4b Broke on R~ vice QYFMV 

120830Z csw 4d Broke on HRHOE vice HRHON 

21015oz EJP 4d Broke on JPGIY. vice JPRIK 

251335z FJJ 4d Broke on KLJIN1 vice KLJLZ 

27145oz FUY 4d Broke on HIUMC vice HIU:MA 

291245z GII 2 Broke on AM rotor arrangement 

AUGUST 

OllOOOZ ACT 4b Broke on QWASI vice QXASI o41208z AVD 4d Broke on NIUJX vice NIUJK 

201205Z EAZ 4d Bl•oke on FNDUF vice FNAUF 

280735z AJI 4b Broke on WIQKK vice VfQ.KK' 

SEPTEMBER 

• 

082035z CSY 4a. Broke on CI<QUE vice CKQEU 

131400Z EEG 4d Broke on SDIAK v~ce SDIAF 

20055oz FKA 4d Broke on SGTKR vice SGTKP 

20055oz FRL 4b Broke on JUZm vice JVZm 

231905z GHN 4d Broke on MEKZP vice WEKZP 

USA-54A 

JULY 

01143oz A'lK 4a Broke on KDXNI vice KDNXI ... . . . • 

020235z APG 4b Broke on XNYDE vice XOYDE . . 050015z BKQ 10 Message indicator derived ····· . . ..

• using deciphering procedure .. ... o8011oz CIO 2 Broke on 1 July PM rotor .. arrangement 

o8093oz CMA 4d Broke on OKIJX vice OUIDC . . l00525Z DDV 4d Broke on OEVDH vice DEVDH .. . ... . . 131125Z DVQ 4d Broke on VYLUQ vice VYLEQ i6131oz EPC 10 Message indicator derived 

using deciphering procedure i8035oz EYX 4d Broke on RJ::QKJ vice PDQKJ 202056z GRR 4b Broke on HLEKV vice HLEXU 

Incl 1 

g:iop 6El9RB'f CONTROL #JI+-J 502-B 

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• 

VIOLATIONS (Cont'd) 

DrG TRIGRAPH KEY NO. m.'iARKS 

USA-54A {Cont'd) 

~(Cont'd) 

202056z GGX 6 Omitted tra.ff'ic type designator 

.270302z HZX: 4d Broke on EKUBG vice EKEBG 

28073oz IGY 4d Broke on TGPKQ, vice TQPKQ 

290915z IRV 4a Broke on CAEPN vice CEAPN 

AUGUST 

090535z DAL 4d Broke on VFOOX vice VFBOJ 

112345Z DPN 4c Broke on PYIFE vice VYIFE 

l20430Z DQ.I 5 Broke on CBTZS vice COTZS 

162222Z ENJ 4d Broke on UKUYX vice DKREX 

262352z EOS 4d Broke on DVRGG. vice DVRGZ 

280045z GVL 4d Broke on RUBPII vice ROBPH 

SEPTEMBER 

03225oz AQ"; 14 Random rotor failed 29121~oz EUT 4a Broke on XJOAK vice XJAOK 

Oll245Z 3 Used key list assigned to 

USA-54 

01132oz 3 Used key list asEigned to 

USA-54 

012345z 3 Used key J.ist assigned to 

USA-54 

011405z 3 Used key list assigned to 

USA-54 

USA-54C ... . . . . JULY . . ..... . . .. . o80315z BCD 4d Brdke on PDRAT v:ioe PDRPU .. ... i60515z CNC 10 Message indicator der-ived using .. deciphering procedure 

161335z CPC 4d Broke on ZGNZL vice ZGNZS . . i6164oz CPZ 4a Broke on RI.CYC vice I.RCYC .. . . . . . . 170228z CRI 4d Broke on NDJSK vice NDJBT . . 230415z DZI 4d Broke on VOm'F vice VONT.F ····· . 

AUGUST 

l00700Z BTS 4d Broke on KMJY.R vice KMJVR 

Incl l 5 

~ ffileRE'.f CONTROL fa~g3502-B PAGE 5 OF .JO P • C~F COPIF.8 

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'!'O'!' ~e~~ 

VIOIATIONS (Cont'd) 

IYl'G TRIGRAPH KEY NO. REMJ\R1<S 

USA-55 

~ 

070105z ANY 4c Broke on ZTAQU vice ZTAUtJ'. 

070105z AOG 4b Broke on CXNVQ vice DXNVQ, - 11~2115Z BGJ 4d Broke on YIPOH vice YHPOH 

20232oz CCQ 4d Broke on KAAXS vice KEAXS 

270057z CNR 4b Broke on PRSDX vice PRSDW' 

27oh28z cow 7 Kil"1XD 

302126z CVG 4d. Broke on EMDDV vice PMIDV 

AUGUST 

-- oi~oo5oz PJjW 4c Broke on YDOTG vice YDOTD 

052221z AIM 4d Broke on ZPDIO vice 2'MIPX 

06213oz PJ:{V 4c Broke on KPGKC vice KPGKZ 

102140Z AWM 4d Broke on XEEMQ vice Ml!:EMQ 

29005oz DND 4d Broke on NFUYZ vice NFDYZ 

SEPTEMBER 

05005oz ARP 4c Broke on PAMES vice P.AMBS 

160026Z 14 Fourth rotor failed 

180?55Z BYX 4d. Broke on HQZFR vice HQZFY 

USA-56 

JULY 

2009o6z FNW 6 Omitted traffic type designator ... . . . . SEPTEMBER . . 

..... .. • • 

• 23072oz DWH 4c Broke on CCSCA vie~ CGSCA .. ... 2613ooz 15 Correct Dl'G·260724z .. 261535z 3 Used key list assigned to 6910th 

Scty Gp . . .. . ... . . 

~ SB0ffi'JP CONTROL #54-3502-13 

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VIOL.A~IO~S (Cvnt'~) 

D1'G 'l'RIGRAJ?lI KEY NO. 

'01'.21~oz 3 

301425z 3 

30224oz 3 

06013oz 9a. 

20062oz 2 

231005z 2 

030945z EIT hd 

07051oz ~D 4d 

ie2245z 9A. 

30162oz KAI\: 4b 

l1Jl45Z DZY ~ 

2J.2030Z IDS 4d 

260045z .n-ra 4d 

111720Z CJ.a: 4d. 

l61820Z DIM 8 18002)~ 14 

212_1J.2Z EI1f 4d 

25oli25z FJO 4d 

252015z FMZ 4d 

Incl. 1 

~~Ti>~. .l!I u n .l!.I 

R'EMAP.i<S 

~"SA-56A 

JULY 

-- Used key list a.ssig.a~d to 69loth 

Sc-cy Gp 

Used key- list aasigncd ~o b9loth 

Sctl! Gp 

Used key.list assigned ~o pSUoth ~cJ.;y Gp 

AUGUST 

~('Ike on AA vir;e EE 

Broke on rctor arrangement f'or. 

21 Aug 

Broke on flll rr:rtor arrangement 

~57 

JULY 

-- Dro'ke en W!i'TOR v:!.ce SF'IDR 

Broke on t'GYWiq 1r·ice t.'GYWI 

Droke on BB vice AA 

Broke on l©COF ''j ca I\CBOF 

AUGUST 

--Broke on PM :rotor e.rra.nger.ient 

Bi:-oke on D:trVQ vice DPI'VQ 

Broke on OBZJQ vice IBZJQ. ... . . . • . . SEPTEM:i3ER ····· ~-- . . . . . Broke on USCJT ·rice UGFJT .. ... .. Broke using trigraph Drl 

Fourth rotvr tailed 

Broke on l.NlRHG vie~ IWRHG • . .. . Brcke on ROLLI vice ROI.LR . . . . • 

13r.:>ke on Qt'ITC vice QU'ITC . . ..... . 

~'011 BEeREJ'i? CONTROL#54-3~02-B PAGE 7 OF 10 'PAGES 

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~lB~. .J..:J '-..A .L" ~ !d:1QP s:senm 

VIOIATIONS (Cont'd) 

DTG TRIGRAPH KEY NO. lWMARKS 

USA-57A 

JCJLY 

- 29053oz 14 Third rotor failed to step at 

counter reading 1642 

SEPTEMBER 

080010Z A"FR 4d Broke on EMRBD vice EMRPB 

130520Z BLY .!!:d. Broke on OBRER vice RBRER 

190145Z BWY 4c Broke on DDXIZ vice DI'XIZ 

23214oz c.m 4d Broke on RUVEY vice RDVEY 

6910'.l'H SG 

JULY 

o61248z 11 Key tape contained 12 consecutive lette~s characters 

131120Z B.:r.!' 4d Broke on IHVXO vice LHVXK 

161015Z 2 '..'3roke on PM rotor arrangement 

::so15ooz BZL 4d. Broke on MPJ!'HY vice MAFNY 

AUGUST 

060:345Z 12 Key- tape stuck 

o8o845z l:30Y 4c :Broke on BURnG vice VURw.l 

11082oz 2 Broke or.. !:'M rotor arrangement 

25083oz 2 Broke on PN: rotor arrangement 

250921z 2 Broke on PM rotor A.rrangement 

251oooz 2 :Aroke on PM rotor arrangement ... . . 251005z 2 Broke o~ PM rotor arransement . . . . 251142:3 2 Broke on PM rotor arrangement ..... . . • • 

251145z 2 Broke on PM rotor arrangement . 

.. 2512ooz 2 Broke on PM rotor a.rrangement ... .. 2512ooz 2 Broke on PM roto.1... arrangement 

6920TH SCTY GP . . .. . ... . . JULY . . 

····· . 170200Z !M'; 4d Broke pn LNHLB vice uruLZ 

'!OP SESflBi' CONTROT .. #s4-3 5C2-B 

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w VIOIATIONS - (Cont'd) 

IJI'G 

100030Z 

181435Z 

o~o4ooz 

120705z 

llC9007.. 

:;_506077, 

171617Z 

182:i..OOZ 

o6ou4oz 

l[!o33oz 

20013oz 

o622:!.5Z 

o01646z., 

13l950Z 

TRIGP.APH 

F.PA 

KEY.,. NO. RE?IARKS 

5 

.:J-1 

ll 

11 

5 

4d 

13 

11 

11 

11 

ll 

·11 

11 

12 

11 

11 

69aQTJI RCTY GP(Cont'4) 

AUGUST 

Alignment derived uaiug procedure 

for ~irst meas~gp ?f p.ryptopertod. 

Keyboard otieration 

fJEPTF .. MDER 

Clear text tape 

Keyboard operation 

A1ignmeut derived using procodu.1-e 

!'or first message at cryptoperiod. 

Broke on HYJAX vice HFGAX 

Meesage relayed to sta.ttons not a.uthori~ed to recei,•e COl.U:Nr 

information 

seo FE/.\F 

JULY 

Clear text ttipe 

Clee.r text t3.pe 

SSO USAFE ----

AUGUST 

Key~oc.rd. operetion 

6~lST SCTY GP 

JULY 

AUGUST 

Keyboard operation 

Keyboard operat:\Pn 

Keyboard operation 

Rotors i'a.ileri 

Keyboard ~peracion 

Keyboard operat1.on 

~ESE~Rl!f.P ~o~Lp~:MgJ502-B 

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····· . . . . 

• 

.. ... .. 

. . .. . ... . . 

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... { ... • 

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VIOIATIONS (Cont'd) 

Dl'G TRIGRAPH KEY NO. 

010625z 12 

l20315Z ll 

102113Z ll 

171040Z 11 

2.52204Z 11 

Incl l 

• 

.., 

il§:"' ..l..!I i:B 

'-..A ~~. .L" ..l..!I 

REMARKS 

6Q61ST SCTY GP (Cont'd) 

SEPTEMBER 

Key tape stuck 

Keyboard operation 

Keyboard operation 

Keyboard operation 

Keybodrd operation 

••• • • • • • • 

••••• .. • • 

. 

.. ••• •• 

• .. • . . • • . • 

. . ••••• • 

TOY SEeffi!f CONTROL # 54-3 502-B 

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SEeRI1'f 

KEY LIST OF AIR FORCE VIOL/\.TION'S 

July, Aug., & Sept., 1954 

ROTOR J\RRANGEMENT 

1. Encipherment with one rotor reversed rather than straight, straight 

rather than reversed, or with one or more incorrect rotors. 

(Reference AFSAG 1262, para 5006a(l)) 

2. Use of a rotor arrangement for an ina~propriate cryptoperiod, ~ 

or month. (Reference AFSAG 1262, para 5006a(l)) 

3. Use of a rotor a.rran~ement from a key list assigned to another station. 

(Reference AFSAG 1262, para 5003b) 

ROTOR ALIGNMENTS AND MESSAGE INDICATORS 

4. Discrepancy between the message rotor alignment resulting from 

decipherment of the message indicator and message rotor alignment 

actually required to decipher the message, although the latter was 

correctly derived. The discrepancy involveQ. (a) transposition o'i: 

letters, (b) substitution of a letter alphabetically adjacent to 

the correct letter, (c) substitution of a phonetically similar 

letter, or (d) errors in encipherment. 

5. Failure to tail previously enciphered message. (Re'i:erence AFSAG 1262, 

para 6002a(4)) 

6. Omission or addition o'i: one or more letters to the message indicator. 

7. The message rotor alignment was transmitted in the clear as the last 

'i:ive letters of' the message indlcator. (Reference AFSAG 1262, para 

6002a(5)) 

KE:Y GROUP 

8. The trigraphic key-group indicator in the message indicator did not 

correspond to the key group actually used for encipherment. Reuse 

o'i: a key group was not involved. (Reference AFSAG 1262, para 5004b) 

MACHDIB DESIGNATOR AND MULTISWITCH SETTING 

9. The machine designator in the message indicator did not correspond to 

the multiswitch setting used '£or encipherm.ent. The messages were (a) 

correctly enciphered or (b) incorrectly enciphered. (Reference AFSAG 

1262, para 6002a(l)) 

Incl 2 CRYPTOCIEARANCE REQUIRED 

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~ .-. , ... ... 

iW 

. 

Sl!:S~ 

10. Transmission of classified information in monoe.lphabetic substitution 

cipher. 

ll, Revelation of COMINT information to un~uthorized personnel. 

12. Transmission ot a message in which there was faulty rotor stepping 

during encipherment. (Reference AFSAG 1262, para 6002a(3)) 

13· Transmission of a message .containing an incorrect date-time group. 

14. Reuse for encipherment of the same segment of key tape. 

SEeRET CRYPTOC:tru\RANCE REQUIRED