- • 

REF ID :J\,70840 

DEPARTMENT OF DEFENSE • 

ARMED FORCES SECURITY AGENCY 

WASHINGTON 26 D C llPL El"BR TO 

~~(ffi~rr l~ Ll ........ ,. l2 Oct 1950 ~ 

Col B: L Whitten .1dautant General 

Head.quarters Anq Seouri ty Agency 

Ar1Ugton. Hall Station 

~ ~ 

SlJ»JECT leciasion ot~G-2 Pol107 on Release of Cryptograpluc 

hinoiplea .,,.. i 

Enclosure (.&.) Copy ot subject policy 

1 Enclosure ~.&.,deals with a poliq eata.bl~ahed by the 

AC of S G-2 War De~tment on 29 April 1M6 

~'t t .la I toid ;vou on the telephone this morning in a 2d Ind 

dated 9 Oct 1960 addressed to Director Arm.ad Forces Security 

Agency and marked tor 111¥ attention Col John W lhddleton GSC 

Chief' of Security and fraimng Division Off'l.oe of' .lsa1stant Chief 

Of Statt G-2 Intel1igen.oe Depar'tment of the Arrq states that 

the poliq set torth in Enclosure (.A.) •• rescinded by' .&.aaiata.nt 

mtlet of Staf'f' G-2 t on 7 July 1960 but gives no turther information in this regard -

~ ~ 8 Ii" tho .&.SA. aJ.readJ' has or can obtain a:t11' 1ntormat1on dealing 

"fith the background am/or reasons tor the 1 Julf 1950 reciaaion ot 

the policy established on 26 April 1946 I would be moat appreciative it you would auppl.Jme therenth as t'hia 111 a matter of 

interest not only to me a1 a former ampl~e ot A.SA but also to 

J5'll3 other former eapl0f8&S of ASA DOii' with JtSA 

, ~ ._r .,- t.. -t... - "'1t 

~~~ ~1 5 _/_~ .)-J.• ~':'h,. • .-. ?. OJI.~~- JPIU.-00! 

~e- ~ \~"'V 

~ - .. r 

eclassifi ed and a ursuantto E.O. 1352 ,•~ ~ ~.... ~ ~...JHl'~tltfi 
",. 

• REF ID:A70840 • 

COPY 

29 April 1946 

JmhORANDUM: lt'OR THE CHIEF• ARMY SECURITY AGENCY • 

SUBJECT: Release of Cryptographic Principles. 

1. The following policy is announced to be effective 

lllllll8 di.ate ly. 

a. Cryptographic principles or devices developed by 

oi'i'1cers. enlisted men. or civilians employed in any War Department Agency. or patents or patent applications on suoh principles or devices which are owned by. assigned to. or licensed 

tor use of the '\far Department nll not be released for use of 

foreign governments or for foreign or domestic commercial or 

private use until such time as necessary information is available and a procedure established in the Army Security Agency 

whereby information which is cryptographed by means of such principles or devices can be cryptanalyzed and read under any and 

all circumstances. 

b. Where it is in the interest of the Gover:mnent of 

the United States that an employee have no patent rights in 

cryptographic principles or devices to dispose of. and for the 

Government to own the entire interest for security reasons 

throughout any foreseeable :future; and where discovery or invention or cryptographic principles or devices has been made 

by a civilian employee and does not relate to a matter as to 

which the employee was specifically directed to experiment with 

a view to suggesting improvements nor was produced as a result 

0£ any specific employment or contract to invent a specific 

device or article, and where an application for pa.tent on such 

principles or devices has been filed with an assigmnent-in-trust 

to the Government for the purpose of maintaining such application in secrecy. the Military Intelligence Division WJ..ll support. 

subJect to the availability of appropriations. any reasonable 

request tor purchase of all commercially exploitable reversione:ry rights or the inventor in the patent application. 

/s/ CARTER W. CLARKE 

Colonel. GSC 

Acting Deputy. A. c. of s •• G-2 

$~MfEi Encl. (.!) 
,\, 

REF ID:A708·4··· 

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· 12 Oct 1950 

UBXORAlIDUM FOR1 Ool. B. L. }Vhitten, Adjutant General, 

Headquarters, Army Seouri ty Agency, 

Arlington Hall.Station.. 

SUBJECT: R~ciesion of G-2 Policy on Relea~e ot Cryptographic 

Pr.inoiples 

Enclosure i · (A) Copy of subject policy 

1. Enclo1ure (A) deals with a policy establieh~d by the· . . AC .of S, G-2, War Department, on 29 Al>r1l 1946. 

2. As I told you on the telephone this morning, in a 2d Ind. 

dated 9 Oct 1950, addressed to Director• Anted Force• Seourit~r · 

.. Agency, and mo.rked for 1I1Y attention, Col. John w. Mid~leton, GSC, 

Chief pf Security and Trainin~ Diviaion, Office of Assistant Chief 

ot' Ste.ff, G..2, Intelligence, Department of the Ar'tII'f, states tho.t · · the policy eet forth in Enclosure (A) was re11einded by Asaistant · 

Chief.of Staff, G-2, on 7 July 1950, but gives no further informs.· 

tion ~n this r~gard. 

3. If the AS.A already has, or can o~tain, any information dealing . in th the baokground and/or reasons for. _the 7 July 1950 recission of 

th$ policy established on 26 April 1946, I would be moat appreoiati ve if you would supply mo therewith, as this is a mattor ot ·. -.. interest not only to mo ae a f"ormer employee of ASA~ but a~so to 

·.many other ·former employees of ASA now With ·AFSA~. · · 

Declassified by NSNCSS 

Deputy Associate Director for Policy and Records 

on .1.o ( 30 '1 )o· by ~,M'--. __