NSA-712 

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19 January 1955 

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This report includes a.11 systems current on 31 December 1954 and all systems llJlder 

study in ISA-712 at any time during the calendar year 1954. 

DISTRIBWION: 

External 

NSA-712 

BSA-7121 

l'fSA-7122 

NSA-7123 

- 2B copies - 15 copies 

- l copy 

- 1 copy 

- 1 cow 

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Declassified and approved for release by NSA on 08-27-2013 pursuantto E .0. 1352a 
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INTRODUCTION 

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The two pri···n· ... e····i···pa· 1 t~l"gets of If~l2 !lur1ri.g·········l95lf. we····r·.· ...e· /.··t···· li···e··· :Dipl····· oma· .. ·• .... tie and 

Military and about ~lems. uto '!'here are about(____Jperso···ns···········assigne····d·••••····t·o········ t .. ··h·····e Dip·····l··· om·· .. t·· •.• ic problem the Military. . 

The most significant developments during the pa.st year were as follows: 

l. An ,ittem.pt by th~ lto tighten upsee"Qrit7in bothDiplftliltic and 

Military cryptographic systems. "his trend res.eh.edits peak in June and July 

after which time security consciousness decreasedso•what. 

2. The introduction of two voice/scrambler systems in I • I .the SingleSide-Ba.nd, 4-cycle AZ-13 and the Double,;.Single-Side-Band, ·5-band system (the 

other side ot which carries radio-printer tratfi.c. 

Generally speaking, the overall situation in NSA-712 during l95li- reflects 

conditions that have contint;J.ednow for/sevel"$.l years: inadequate numbets of 

cryptanalytic and linguistic.personnel to carry out properly its mission. From 

a personnel strength ofE]in Jan 58 the Branch has been reduced to an aTerage 

strength of about c:::Jpeople during 1954 ~/ This has been due, principall\r, to 

levies placed on Branch personnel to support higher-priority problems such as " 

I V The inevitable cost to consumers has been few.,.. 

translitions ana: a decrease in their /timeliness. 'fheolligence yield. to ' 

consumers represents only aboutc==Jc>t its potential Diplomatic andc=) 

Military.) In addition to this, the manning of extras ts in response to 

special consumer priority requests, the establishment of a swing shift of : 

arbitrary size, management surveys, periodic furniture reshutfling ha'V"e all 

contributed to further limit the Branch's production. 

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PRODUCTION STATISTICS 

Oct-Dee Oet-Dee Year Year Year 

1954 1953 1954 1953 1952 

Orig Cipher Msgs Reed 51,551 34,238* 213,427 137,693* 182,896* 

Dupe Cipher Msgs Reed 21,135 37,781 168,li.98 126,618 118,1'.28 

Total Cipher Mags Reed 72,686 72,819* 321,925 264,383* 213,324* 

Cipher Mags Decrypted 21,838 19,568 i~ttf ,988 ::e?:,.566 59,163 

Cipher Mags Translated 4,7311 4,556 28,137 21,743 21,578 

Cipher Msgs Summarized 494 648 2,649 2,619 738 

P /L Msgs Trans .or Summ 598** 641 l,4Bl** 2,B48** 714** 

Code Meanings Recovered 2,363 5,554 14,252 15,51f.4- 22,561 

Aver llumber Personnel 118 138 122 129 122 

Dr!'ERCEPT /'I!BAYFIC ANALYSIS 

Although the Production Statistics indicate that the volume of original 

messages received for 1954 is abeut the same as it was for 1953, there bas been 

a downward trend in receipts since June. The loss of a large volume ofl I 

traffic {B-211 machine eneipherment of high-level military traffic) between· .Ray 

and August as a result of a change from Morse and Teletype transmission to Double 

Single Side Band was a. major factor in this decrease. Although 11$.M-9 began to 

intercept I Ion the DSSB in August, the traffic volume remains lowbeeause 

intercept this new type of transmission and because of the loss ofl _ difficulty has been e··.xpe· .. rienced in acquiring all the equipment necess=; to 

and the consequent decrease in the amount of tra:f'f'ic sent by- the lr""'"'----,.---....J 

In 1953, it was estimated tha cipher traffic received 

on the 

e 

percentages have not changed mue.h for 195 , except that there M.s been s.ome;;;;;..;;...---..-...., 

increase in radinf:nr1Mer traff!!! as··· ... a result o.pybe 1nsta··. llat ... ···1 ... ····n ... ··~··· ... ···· b!j .. ····. ..···· I J . In tJCtober 1953 and a correspoiiCI!ng decrease !n[____Jlet trattic. 

* 195~ end '053······.f·· .. 1. gures for cipher message·· ... s do not incl'tJd··. e .. ···a ............. ·.·.·• la.rge number .. of unsolve i-ssages, the volume of which is estimated to b~ jPer 

menth. 

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of - . Qom net ~llfl traffic 1;tancipeint cannot of be exploi too highly ta.bili .. t.· stressed.. y ··a.····nd···· .c~~.·.·.'·llm··· Iatereept er int. e.·.r·· .r.eeeipts .e·· st, .··the .'· llave impertan·· re~~ ... ~~~ f;·. - ma ,e fairly- steady for this ye_ar with aboutC:Jof' the total s · sThis loss, in addition to the complete loss of c~t Station ISN-18 

during the year, made it seem essential to provi(le for L__J cover to the extent of' 

3 positions Iecated on the continent. NSA-:712.wa.s successful 1n having one 

position a.t STATION USX-6 assigned to this problem at the end of' :November with 

very favorable results based on one month's. take. 

A new·~ 1•;1u:: a.t/St···ation USM-6 to intercept I I traff'ic pass- ing betwee~ __ __ ___ I which is thought te> be sent by means of' the 

"True-Tone' sys em. s nee bo land the Air Force are interested 1n this 

traffic, it is hoped that all possible eft'art will be made this time to obtain the 

proper equipment and personnel to intercept this traffic which NSA-712 has desired 

f'or so long. 

During the last half' of 1954 the AZ-13 r the 5-ba.nd nice scramblers came 

into general use. Shortly after the fall of I Hanoi . _ 

started using the AZ-13 almost exclusively although the hand-morse and teleprinter 

circuits were kept open. This ca.used a drop of abeutJ // ltraf'ftc. , 

In July the secanci voice scrambler (5-band) in 11Se in/I // !was identified. 

"It is passed on one side of a Double Single Side Band system, the ot er side- of 

which was found to carry the I !traffic which had been m11nfing since May_ 54. 

USM-9 .is now intercepting some of the_ traffic passea .in/these. systems. However_, 

lack ,of proper equipment has prevented full interception .a.nd exploitation of' the 

two -serambler systems and the DSS:B. The partial 1nte:rcept of the Double Single 

Side Band transmissions restered some of the I • ftrattic but the volllllle is 

still far below normal. \ • > / , · 

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1. LJACBm smmas 

'l'he readability ot this 

encountered · 

* See Attachment A. 

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-- H)P l\m~fi!~ .. . uL.l'-'A'-.&.:. A 1.41 

There were several important highlights in solutio~urn; the year. 

Electrical torvarding ot USM-8'1: traf'fic by ISA-13. 

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at both ends ot ISA-1 •s circuits. Amo other thi $, 

3) A special Courier forwarding arrangement which cut the average delivery 

time ot hard copy :f'rom 7 tc l! days. 

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them. 

Little is known about this series. 

;f't. 86-36/50 USC 3J 

/ f=O 3.3(h)(2) 

However, it is felt that more groups are involved in each of the ind:tcat(>r 

altho recent studies includi 

Most of the solution work on ~ the assumed predecessor of the 

series, was accomplished during the fi~ months of 1954. When work was ....____,_, ..... 

abandoned I ~ 

3o The 

$o1ption end exnloitat1on of thiS series of/ I L-~~~~~~~~~~~~~~--

T.., l\~, .... 1Rt _ t."h ... I 

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eonf'erences, an o w: 

lanes and is slowly dying out. 

pads. 

III.Lo.I ______ ___, 

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RESEARCH AND MACHINE AIDS 

1. Computer Programs 

The following cemputer programs were designed for use on ATLAS II. 

2. Ma.chines 

INTELLIGENCE PRODUCTION 

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REF ID:A65617 

Jan. 1;1834 5,S 51,S ·ll 386 25 245 9 - Feb. 1;625 38 ~52 21 38la. 148 142 It; 

Mar. ~,616 124 ~9 ~ 475 ~· '3¢'11 64 

Apr. 1,598 in. 472 61 575 ],,_ 325 92 

.,. 1,459 134 4;5 9 227 . 34 142 25 

' 

Jun• l,,19f6 .3 333 5 323 l,S 2f61 1 

_.Jul. ·1,J645 29' 290 5 21,S 

- 131 3 

Aug. l~,S34 

- 288 8 232 45 144 '19 

Sep. 1,382 i 385 36 233 

- 145 7 

Oct. 1,543 27 1128 36 18fd 2 lll 291 

Bov. l,Sf'9 '71 5¢3 18 2~7 

- 148 l~ 

D~c. ' ;i...tai 41 . 441 14 166 - - ..!! ~~ 

Tatal. 17,·726 ,. 616 4,956 268' 3,63- 534 2,142 ~ 

" .. ,, ' .,, \ 

,1,7~ 15 l.a4.l..3 i6 

982 4 . 882 3'. 

1,263 5 1,326 ll 

1,377 8 1,152 12 

l,38fd 9 ... 753 25 

1,296 ,S· 814 1 

1,242 

- 1,023 

9¢6 9 843 - 1,377 3 864 - l,6f68 16 1,398 -

2 

l,989J 13 1,854 16 

l,554 _t 1,,476 4 -

16,714 82 .l..31198 'R 

/'· 

' 

1,732 l,s4 

2,.,. ;t.59J' 

2,538 75 

2,329 74 

1,714 74 

1,352 8 

1,849 19 

1,464 5 

2,1JtJf6 l~ 

2,6J.J. 6J. 

2,545 245 

' 

.2,285 ~ 

25,221 894 

I 7,'869 

7,169 

7,967 

7,828 

6,;a,J 

5,,~ 

5,79f6 

4,911 

6,486 

7,879 

9,-76 

i,623 

2~ 

4ll 

453 

484 

33' 

28 

47 

. 86 

f>f6 

164 

376 

144 

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Blt.~187 2, 793. (3,~) ..