REF ID:A71130 

COPY 

, 

mm11w !II llHID KOUU 

BIBDO!OI' 

The S.o:retary of State 

Tile Seereta17 ot W'ar 

!he Seeret&17 ot the •TY 

!he A.1:to1Wt7 General 

!he Joint Cldeta ot Sta.rt 

!he Direotor of the Budget 

28 Auguat 1945 

!he Direator f4 the ottioe ot •ar Intoraticm 

.&.:i)l>ropri&te depart..nt• ot the Gownment ud the JoiDt 

Chi.t'• of Siiatf' are hereby clireotad to tab •uoh atep• u an 

zae•••BU7 to p~t releue to the public. exaept ntb. the 

speo:if'1a approwl ot the Pnaident ia •oh a..••• ot1 

Intorat1011 regarding the put or ?reset atatua, 

teahm.que or procedu.rea. agree ot auoo••• a'ttai•d, 

JIAU! S. !JltJlf&I 

Declassified and approved for release by NSA on 05-27-2014 pursuantto E.O. 1352a 
REF ID:A71130 

I. OOlllDIICA!ICll SICllBift 

a. (1) 1J8ll9T w Pree:l.clm' ot u. a. and C-nder ill Chief, v, s. tav, 

Chi.et of Staff, Al"IJ7 and o\blr hish ranking Gowftlmllt otficuls ja\U'D8)'9d ae'ftral 

"1- balt •7 a:round the world to attend special meatinla am oonfe1'9DC9a. 

(!ra•lled aafell') 

(2) On ~ other band, the gentlel8a who was zrepol'ted to bave said in 

19411 •I•• looking tonard to dia\ating peaoe tel'lll 1n the Whiw Roua.• Yn, 

the Comam'er 1n Chief of Jap Comb St.a1'f - ldm:lral taorolm Yuamota, 1rbUa 1D 

the 001UWe ot an ord1narJ' :lmpaoticm tour, died in a flaming tlap barber tbat 

czuhecl on \he Solomon Xalanda in April 1943. Accidsnt? •Accidents don't 

bappen - tbq are brougbf; about. n 

b. (1) Ewr tb:1nk about 1WI 1iramamlou number of ommnicatiom :Nquired 

to blmdla an operation lib Torch and Overlo:rd? 

(2) Communication security responsible for success. 

c. Oommn1cat1on aecuri v - embraces all meuUl'88 designed "to d&n7 to \111-

anhorlled panona auoh 1Dtorma'h1cm of militar.r value aa might be deri"Nd :trcm 

ov o.._n~oa\1ona.. 

d. Three basic elemanta \o comun1cat1cm secm1.v: 

(1) P!pical •ecv1\7 

(2) 'hanadaaicm aecurit.J' 

(3) CZ"JPtog:raphlo aacvi• 

•• ,_.1-eal aeour!'7 aafegaards a 

(1) 11.Denaiw and 0Clllp1'9hanaift accoan'1ng 9111'8Ja for ew17 alng]a 1ta 

(2) ottlae ooarler tor clelivel'T 

(3) CCllplete am aclaquate 1.aatnotiODI and 1118&1111 for deetrv.ot1on bl 
REF ID:A71130 

(4) lule1 I•~ plpioal eatesaam1nl (aode :room and 8'o) 

( s) C!Jp\ograpbio olsaraDaea ... 

(6) InapeoUcma 

(7) Colmar lnoiden\ 

1. !ranasdae:lan ••our1'7 

(l) Pl'oT1de op11&\ing proced1U'9e •hich 11• least 1.ntormtioD t.o eneav 

(a) Bidden acldnea• 

(b) Cbanging oall sip and traquaLciu 

(2) llcm1\orinl - obeclal • dolatiana 

(J) Prewntion ol deaapticm by •IMllW' 

I• C~phic aeauriQ' 

(1) Provision of ,adequate cryptographic ayatema to met all naada - over 

high level material - unbNllkablB. (Jlaintenance) 

(2) Contimaoua ftMGl&roh 1D this field - tor Cl"J'Ptop&phic MBsag• -

oilGD7 - oUaz. 

(3) Oeyptograpbio a78tem used by Anq diYided into: 

(a) lorml. 

(b) Stanilb7 

(o) lllargeD07 

(4) Cry,phoaeta - wm"ld wide - isolation 1111tm, etc. 

(S) lepol'ting of cCllp1"Gld.aes (.U 380-S) 

(~ on Drajalain, who d1lriDI mop up operattom :la June 1944 

t' 

atV6led &OIO&• bod7 ot a dead .. P - a piece ot water soaked paper 1'1Da l.m!de 

lap a\VaoW !da 979 - _. 1D BaglS•h. Paper wu •v Dapar\antf duomlm' - a 

eode .Ue]1' Wied SA PaoUS.O. eap 1'l"iting m iti - 1Dd1aa\ad Dnceiwd 3 .1&mla-'fJ' 

1944.• Inmdia'8 amak made U to NSpaaaibilifiT tor loea of dOOlDllBD\ - D.an'Oalld 

a 
REF ID:A71130 

doe to a epeoitla 8q\1lldron of AZ'JIJT bCllbar oc-and. Invaat1pt1m i....W a 

t.tbeJ'a\OI' waa ehot ctaa. lq'*1 ocmancler aa1cl ha •• plall8 shot don and czw 

aapt.uect and nported \ha loea to h1gbar au\hority and u.....a Id.Iba• autbori\7 

would talca aare ot 1081 ot aode. lnult no one reponed ita laaa. .llp was < 

t0'1Dd 8 tlumary. Jlaa1i aaeu. oodea ivad tor S da18•) 

n. m !!!! s_r.c_uarn __ A..,..ODC ........ ..-t 

a. 6 Sept.ember direotiw - (ldat017 alide) 

b. 'larld-w1de C»JPD1•••bion 

o. Pl'o'fidea a •erdce to G-2 

d. Oipnization and tunot1on (2 slides ) 

•· Doo\rlae let-tar 

m. OOICUllIOI 

haauae ot great teolmologiGal adftDcu 1D t.hia f1e1d, the need for complate 

integration from top to bottom - the speed or cmnmnnicationa 2'9quirsd - the 

'!&tablis!nan'\ of ASA a atap in right direction. 

,