USCIB: 12./9 

C().{SEC: 2-15/1 

26 October 1954 

MEMORANDtM FOR THE MEMBERS OF THE: U.S. COMMUNICATIONS INTELLIGENCE BOARD 

U.S. COMMUNICATIONS SECURITY BOARD 

Subject: 

References: 

Issue of a Class A Cryptosystem to the Republic of 

Korea Army. ' 

(a) USCIB 12./6 (CCMSEC 2-/8) of 17 September 1954. 

(b) USCIB 12./8 (COMSEC 2-/9) of 21 October 1954. 

1. In accordance with the intention of the procedures set forth in 

the enclosure with reference (a), the enclosed request from the Republic 

of Korea Army, forwarded. through the Assistant Chief of Staff, G-2, U.S. 

Army, is circulated herewith for information and such action as may be 

deemed appropriate. 

2. In order to avoid the likelihood of an unfortunate mix up and 

with the factors indicated. in reference (b) in mind, copies of the 

enclosure hereto are being furnished to the Chairman, S-D MICC for inf ormation. 

Enclosure 

a/s 

USCIB: 12./9 

COMSEC: 2-15/1 

24 
.. 

G2-ASA 21 OCT 1954 

SUBJECT: Issue of a Class A Cryptosystem to the Republic of Korea Army 

TO: Director 

National Security Agency 

Washington 25, D. C. 

1. References : 

a. USCIB 12./6 - Com.sec 2-/8, Memorandum for the Members of 

USCIB and USCSB, Subject: "Procedures for Dealing with Requests from 

Foreign Governments for Comsec Assistance," dated 17 September 1954. 

b. Message, ASA Far East, Nr. A 3267, dated 12 October 1954, 

Inclosure 1. 

2. In compliance with reference la, above, subject request for 

communications security assistance is forwarded herewith. 

3. The following communications security assistance has been 

given to the Republic of Korea Army to date: . a. Strip Cipher System (modified principle) 

b. Numerical One-time Pads 

c. Multi-lingual Operational Code 

d. Playfair 

4. If it is anticipated that final action or decision on this 

matter will be delayed longer than one month, it is requested that the 

Assistant Chief of Starr, G2, Department of the Army, be informed of 

any interim actions contemplated or taken, so that the Eighth Army can, 

if necessary, initiate appropriate action prior to the withdrawal or 

U.S. cryptographic liaison teams to the Republic of Korea Army. 

FOR THE ASSISTANT CHIEF OF STAFF, G-2 

1 Incl 

Msg fr ASAFE #A 3267 

Unable to determine regrading data 

-SECRET 

(SIGNED) 

J.H. MONTGOMERY, JR. 

Colonel, GS 

Chief, Plans and 

Policy Office 
~~n.I,k>~A66072 A 

~ncn:n1 • 

COPY 

DEFERRED 

FROM: HQ ASAFE TOKYO 

TO: ASAW 

MSG NR: A 3267 

12 Oct 54 

DTG: 120514Z 

RECURRENT REQ REC BY THIS HQ FRCM ARMY 8 THROUGH CHAN REF 

ISS TO ROKA OF CLASS A CRYPTO SYS, OTHER THAN DIANA; AND 

POSSIBILITY OF RELEASE TO ROKA OF CERTAIN JANAP AND ACP 

FOR USE IN RA'IT AND TWX COMM. MOST RECENT REQ WAS BASED ON 

STATEMENT THAT US KMAG CRYPTO PERS BELOW ROKA lST FIELD 

ARMY TO BE WITHDRAWN ON 31 DEC 54. SUCH WITHDRAWAL WILL 

PLACE ENTIRE RESP FOR ROKA CRYPTO C~ ON ROKA PERS BELOW 

ROKA FIRST FIELD ARMY. ENTIRE CORRESPONDENCE ON THIS SUBJ 

BEING FWD YOUR HQ BY AIR MAIL. REQ STATEMENT OF POLICY 

CONCERNING SUBJ ISS AND RELEASE TO ROKA BE FURN THROUGH COMD 

CHAN TO FEC WITH INFO COPY TO THIS HQ AS SOON AS PRACTICABLE. 

AS CM IN NR: 7172 ( 12 OCTOBER 54) 

DATE RECD: 120851Z OCT 54 

SECRET