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SEGYRITY INFORMATION 

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ACU I 2Ji381 

ACTN1 fCG 1-11i 

FR<*ta SUSLO LCNDCN INF'Oa C/S 1'1 

TOa DIRNSA 

DTQ t · l'J51 ¢21JZ DEC 52 

MSG NRa LW-38'. 

FOR CHIEF Ca.I SEC FMs AUSTIN 

115 16 

HAD MEETING TODAY WITH SERVICES CIPHER POLICY COMMITTEE. 

OFFER OF ECM OFFICUALLY AND QRATEF1JLLY ACCEPTED THEREFORE 

CAN YoU START AT ONCE TO HAVE ~AVV BEGIN REHABBLITATBON 

AVAILABLE MACHINES. ALSO SHOULD START SEARCH FOR 1&¢9J'•S 

,.fo GO WITH THEM• THESE SHOULD BE EQUIPPED WTTH INTERLOCK :a 

. 2. oN SUS1A'R I NE PROBLEM ROYAL NAVY A LITTLE RELUCTANT DROP 

THEIR IDEA 1- TIME PAD INSTEAD OF Lll:IFER FOR NATO USE. 

1-fC\oEVER THEY'WILL GO ALCJNQ IF ~· CAN PRCl41SE NEW ROTORS 

.SOON. THEREFORE PLEASE INVESTDGATE POSSIBILITY MAKING NEW . . 

SET 0. 1 ¢ CORES AND RI NGs TO REPLACE 2811 ROTORS. TH IS 

NEW SET WOULD BE USED WITH 397--7 EFFECTIVE APPROXIMATELY 

11 JULY IF CAN BE OONE. NEED ANSWER ON THIS SOON. CONSIDER ~. 

ACCORDING TO LATEST US NAVY THINKING THAT IS NOT NECESSARY 

PROV 10£ CCJ4PlETE CLASS 3 08STR IBUT ICN CCMUNED StllMAR INE 

rct NRa 1992 ET 

PARAPtRASE NOT REQUIRED CCNSULT CRYPTCCENTER BEFORE DECLASSIFYING 

SEGJRITY INFGRMATION 

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-Declassified and approved for release by NSA on 09-26-2013 pursuantto E .0. 1352a 
.. 

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SECURITY INreRWcTIGN 

FCI NRs 1992 AGI NRa 24381 

KEYS AND PROBABLY 5~¢ TOTAL SETS WOULD.BE AMPLE. THIS 

APPARENTLY FROM NAVY LETTERON ECM WHICH SCUYLER WROTE 

AND SHONED ME COPY. PLEASE CONFIRM THDS. 

3. USE OF SUCH ECMS REMAINING FOR HIGH LEVEL CCMllNED . . 

COMMUNICATION AGREED AND WILL BE SUBJECT OF LATER PLAN. 

4. FRa.t ALL SCUfCES NATO KBTTY NOW l~CLll>ES GRANO TOTAL 

1896 CCM NOT COIMTING 2f6- WE ARE MAKING. TOTALARRIVED AT 

AS F'OLLOWSa FROM UK SUBS 125, FROM US SUSS 2591, BY LIMITING , 

TVPEX - SIMPLEX TO TRUE FIRST LEVEL 135 (THIS I Will EXPLAIN· 

MORE FULLY LATER) AGREEING CCM FOR WEATHER 1f6¢ (CONVERTED TYPE) 

NOW EARMAR~D FNC WEATHER (OUR GAIN FR04 ATTACHES 15¢, 

ALREADY ALLOTED 943, S~T ASIDE 193 OR WEAT~~· OF THIS TOTAL 

LAST FIQURt 193 DEFINITELY COMMUTED TO WEATHER RESERVE AND ~OT 

GENREAL NATO ISSUE. THEREFORE TOTAL rm QERERAL NATO USE 

IS 17913 OR 76¢ MORE THAN NOW ~IDED WITH POSSIBILITY OF 

2~¢ MORE US. THESE FIGURES Will/BE PRESENTED SACEUR AND I 

SACLANT \.MEN THEY ARE HERE ON 12 DEC WITH RECOMMENDATION 

THEY BE EQUALLY DIVIDED BETWEEN NAVIES AND ARMY-AIR FORCES. 

ll< GENERALLY AGR~ES PRINCIPAL OF SPOT DISTRIBUTION \.MICH OF 

COURSE MADE MORE PALATABLE BY INCREASE IN AGREED ANYTHING BEYOND 

THEM SHOULD BE HELD IN RESERVE. 

S&:ClfR I TY I NrCR4AT I ON 

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FCI NR1 1992 AGI NR1 24381 

5. CN BIG S\IJJEC.T BRUTUS I MADE rt~~ STATE~NT ~ REACTION TO BRITISH CHIEFS OF STAFF MESSAGE WILL BE ~FAVORABLE 

AND THAT WE PR£FER CONTINUE ADONIS PLAN UNLESS AS ALREADY STATED 

IT JS PROVED IMPOSSIBt.E. EVEN IF THIS MEANS SCI£ DELAY. 8 

MENTIONED VERY BRIEFLY POSS 8BIl1 TY OF' PART I AL IMPLj'MENTAT I ON. 

All OF rHIS GOT ABSOLUTELY NO VISIBLE REACTION. 2 OBVIOUS 

REASONS FOR PREFERRING BRUTUS WERE MENTIC'*ED BUT WITHOUT 

'fJllll VEHEMENCE. INCIDENTALLY AFSAM 1 HAS NOT YET ARRIVED" 

6. THIS FOR SHAW. HAVE YOUR AILL·tEM L319 AND Will DO. 

MAIL NOT YET ARRIVED AND IS VERY SLOW. WILL YOU THEREFORE 

BRIEF PAPER PAGE PREPARED ON NATEX AND SEND t4E BY M~SSAGE. 

I WI LL NEED IT MONDAY. ON ROLL I CK Al.ARM· CONSISTS OF' C<14-

PARATRTU BE SWITCH CINF MACHINE CH 3- CONSECUTIVE CHARACT· 

ERS OF LIKE OR CCMPLETELV OPPOSITE PLABN TO CIPHER MATCH. 

ON R~NOIG KEY CIPHER IF SECllUTY EVALUAT8C>I IS AVAILABLE 

PLEASE SEND BY MAIL 

SECURITY INFCRMATICM 

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