) 

REF ID:A6592o 

MW.a 154 

!Tof'eellOl" lohn "'2. l•taam 25 JAN 1952 

the I.n.stJ.tute to:r .AdYmoed ~7 

JIJ."1.no8ton, ... l•""'l 

n.ar ~er 't'Cll •eumrmna 

tho nest nplcr ...t.11'!1 ot SCAC, 'tlhS.ch hid been •bCul.. t.o 

ee bald an 5 -1 6 lluoh l9)2# 1.8 to be 1-1.d 1n8t..ead on 12 m:d U 

11&\'0h. Th• apnda tor tm •et.inc llQ' be •mt 70u 5.n ldnnce tbel"«IOf. 

w. wwld lJko to Im'• ,.,u. cmM here tor a da.r or t111D to oonsult 

on c:et\at.n speet.1'1.c probles .mtah- w t..i. voultl lte or epe0!.a1 

1nterest to JOU. In plll"tS.culv_. w would like 70u to nniew U. 

a.a'lculat.1.onal proced\U"M we _.. ua1n& 1n Babena• •tr.l.x •t.bcd. Aleo 

ttc'a an ~J.I a-~•icliar¥ queat.1.ons • IJhould Uka to•*· Dl 

llM!.tionf a Ybit Detore the zaat, SCAO ..tin& wo14d gt.,. 70u • ep;ort~+.7 t.o ~ certain pm;pera. as JUU 41d lut. ,ear. 

JJlt. C.pa;l.pe tella ae that 70".l ldght be aDle to GO• hen in 

J'ebr.iar.r, • I RU1st that,, it conYardan.t.., 10"'1 Qama • tm ISt.h -1 

16th. tt. boW\n'OI'• WSO datos &1"11 1Dcan.Yen1tllt tor JDll# U. dat.es 

oan eu1lJ' 'be ObanJ:ed. If'°"' .ui be &004 eno~ to let• mo. tr 

t.ho dates bdieated uw accept.able• I eu. tben ~·tar t.nve1 

C"den 1111 a pnpa14'94 to &Hip desk •.PU• tor• co\tple ot d1p for ~ oonvenS.ece in l.a11N1"oll' lltud.1 an! coDGUl tat.1.ca,. 

I vou.ld Uh to 1144 wt !>r. Dptt'm ha.• 1Dlllbat.ed his desire 

to 41.ecusa SC!Q attatn v1th 70-J. at. the t.1u ot ~ Ylait 1n ldYmce 

Ill Ula •oh9:lule4 -tina. t\WHl l'..,_pt ol a re;i'J.7 ~ 70u, I 1dll 

DOt.it.1' hS.a 1'!1m JOU ~ct. to 'be baft. 

MEMO. FOR RECORD 

mtl.L't , • l'IImWf 

Domnaltaat. 

ConrNJ..tant/eby/2S Jan S2 

Roa l9232B/:sxt.. 60493 

Thia 11 a. letter sent to Dr. Von Neumann a member rL the Special. 

Cryptologic Advis017 Group, 'tlh.1ch is concerned vi.th adrtat.ng 11811lbara ot 

AFSA on special developlUlltal problfllllS. 

=-

pp roved for Release by NSA on 04-15-2014 

ursuantto E.O. 13526 

...... r I ... '" ~ .~,. ot 
-.1 

··./'; 

' ' 

-~---

J)r. Clawle E. ShUlnan 

'lell Telephone La.boratoriea, Inc. 

llU.T'r8.7 Hill, Jew Jva.,-

lar1.a11 15 7 

the DllXt ncu'Ja r meetina or SCAO, which had bem .oheduled t.o 

be ha1J:l on S amt. 6 March 19$2,, 1a to be bald instead on 12 and 13 

kreh. The apoda ror the •eting •7 bl amt you in .:h'arce 

thereat. 

xr 70U can ~..., 1~, I suggeft. that ;you COlll8 to Wuhbtcton. 

t.o the lf&TJ' S9'Ur.1 t7 sta:tion, tor am ar t.wo dqa' c:onsultat!.on in 

ldvance ~ the echedul.ed meeting, aq OD the 12th and l)th cL 

febl'\18.J'7. Sane ot .,- associates 1IOUl.d like to cmsul t 111 th 1011 

Cout ane.t'al thillp, among which 111 t.be theor7 and oomputaticmal 

~ 

aapeet.s of an 1terat1Ye procedure ve are using. I th1Dk J1)U 

Jcnaw llOll8 JWU1;s t4 tbe problem,, at l.eut in a paar'al. va,y. 

We also hoe some papers vhich you might find. :lnt.reai>i:ng to 

rerl.ew. 

fl.ease advise it the date ia satietactor.r, 1111! I 111.ll arr.me• 

travel. Ql'ders am .t:lDd. a desk ~~ ;rou. It it h aot eansi8Mrit. 

with 1"1IJ."1! plans, plaase nuie a date tlhich muJ.d bit more c:ounrd.mt. 

MEMO. FOR RECORD 

~, 

W.F.Friedman/OOT/eby/28 Jan 52 

Ext. 60493 

This is a letter sent to Dr, Shannon a member of the Special 

Cryptologic Advisor'/ Group, which is concerned with advising members 

of AFSA on special developmental problems.