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SECRET R1BESFJdllW6617 8 4 RESTRICTED 

TO 

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:wl/1~21 FROM T FROM 

_ Chief, ASA ............ (10)_ 

_ Asst to the Chief.. . (11)_ 

_ Co'r Joint Oper ...... (12) __ 

_ Deputy Chief, ASA .... (20)_ 

Secretariat ....... (20)_ 

Ch, Comm Res Sec .. (14)_ 

Ch, Hist Unit ...... (13)_ 

Ch, Pers Sec ........ (21)_ 

Ch, Org & Tng Sec ... (22) 

Ch, Plans & Oper Sec. (23) 

Ch, Material Sec. . . (24 

Ch, Fiscal Sec. . . . .. (25)_ 

Adjutant General .... (26)_ 

Ch, Sec Cont Sec .... (27)_ 

_ Ch, Operations Div ... (90) _ 

Ch, Lab Br. . . . ... (91)_ 

Ch, Machine Br ..... (92)_ 

Ch, Crypt Br ........ (93)_ 

Ch, Int Cont Br. . .. (94)_ 

Ch, I & D Br ........ (95) I 

( ) Approval & Return 

( ) As Requested 

( ) ConcuITence or Comment 

( ) Information & Forwarding 

( ) Information & Return 

_ Tech Staff .......... (96) _ -4- Ch, Security Div ..... (80)_ 

Tech Staff .......... (81)_ 

Ch, Materiel Br .... (82) _ 

Ch, Methods Br .... (83)_ 

Ch, Protective Br .. (84)_ 

Ch, Maint Br. . .... (85)_ 

_ Ch, Res & Dev Div . (70)_ 

Tech Staff .......... (71)_ 

Ch, Ciph & Cif Br .. (72)_ 

Ch, Int Equip Br ... (73)_ 

Ch, Electromech Br. (74)_ 

Ch, Lab Serv Br .... (75)_ 

Ch, Cryptologic Br .. (76) __ 

Ch, Electronics Br .. (77) _ 

_ Ch, Pers & Tng Br ... (61)_ 

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_ CO, Arlington Hall ... (40)_ 

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roved for release b NSA on 04-11-2014 

71 f) '~ ,;;L..,-, I_ • 

. .-.f'.S 96 (Rev 13 26 Jul 48 57755 
REF ID:A66784 . ~-­

• ,ADD;IESS OFPICUIL CCIMMUNICATIONS ~ 

THE SECRETARY OF'STATE • 

WASl-ftNGTOM 21, D. C.. DEPARTMENT OF STATE 

WASHINGTON 

May- l.9, l.949. 

COMl'!fH!N!liL 

M»S:ORANDUM FOR CHIEF, SJOOURITY DIVISION, 

ARMY SFX:URITY AGl!NCY 

Subject: Military Assistance Program. 

Advance pl.anning in connection with the military 

assistance program to be presented to Congress is being undertaken in the Department of State. Questions 

have arisen as to arrangements for telegraphic communications which depend upon cryptographic facilities . available. 

I have been requested to present the problem. in 

preliminary form to interested officials and obtain 

guidance for the more detailed planning to come later. 

The attached paper contains most of the information 

presently available. Please l.et me lmow whether you 

agree with the reconmend.~tion_or would like to discuss 

-the problem at a meeting. 

~~ Captain, USN 

Chief, Division of Cryptograph)r 

{ 

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REF ID:A66784 •• 

THE FROBLEliii 

To provide cryptographic facilities for the field reFresentatives 

of agencies participating in the U. S. ~ .. ilitary Assistance Program, 

FACTS BE.!.RING ON THE CASE 

....... 

~he Department of State, at the direction of the President, is 

coordinating the efforts of all Government agencies in shaping a unified, 

cqhesive military aid program. Requests for military assistance may be 

expected from any "free nations which will coopera..te with us in the 

maintenance of peace and security." This paper deals only with cryptographic problems created by a military assistance program. 

The Departments of State, Army, Navy, and Air, and the F.conomic 

Cooperation Administration are expected to be participating agencies, 

with the broad responsibility and authority to administer the military 

assistance program delegated to the Secretary of State. At present 

cryptographic channel.e exist for the handling of messages between each 

of the participating agencies and its field representatives. These 

.. channels include systems held by diplomatic missions, attaches of these 

missions, and by military missions such as those in Greece and Turkey. 

Existing cryptographic channels are primarily for communications 

within an agency and do not provide a common channel for messages of 

concern to all participating agencies. 

DISCUSSION 

Although it may be desirable for each participating agency to use 

its own cryptographic channel~ in connection witp MAP traffic, there are 

some advantages to providing a joint system for this traffic, For example, in a large !IAP instaliation the volume of traffic may necessitate 

additional tie-lines which could terminate ~n a separate V..A~ building, 

~his would permit the operation of a joint oomml\nication center and c~e 

room, Also, traffic between agencies would not have to be reencrypteq 

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REF ID:A66784 

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if a joint cryptographic system were provided. 

• 

It is assumed that the majority of the traffic will flow between 

departments of the Military Establishment and their field representatives, 

and will be of concern only to military personnel. For this reason and 

because the Military Establishment is better able to provide c~yptographic 

material, any joint cryptographic system should be made available by the 

Army or Navy Department. It would also be desirab].e for one of these 

departments to ad.iili.nister the operation of coding facilities at locations 

where joint communication centers are installed. 

No estimates of traffic loads are·available at this early stage in 

the planning. 

.Q_QNQ.!..USimI 

In the first phase of the communication plan .for the Military Assistance Program, participating agencies should use existing cryptographic 

facilities. The Department of State and the Economic Cooperation 'Administration will be able to use Stato cryptographic systcmis, and Army, Navy 

and Air Force Departments will be able to use their respective attache 

systems. 

~vhen it has be~n determined that joint cryptographic facilities arc 

neoded, the Army or Navy Department should provide a joint cryptographic 

system, distribute the necessary materials and prescribe the rules for its use. 

R~OM~ ~J!iTDATION 

It is recommended that the Army and Navy Departments agree upon a 

joint cryptographic system which can be used for the traffic resulting from 

a.Military Assistance Program. The system chosen should be one which can 

be issued to the Department of State and its diplomati~ missions. 

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