• REF ID:A67596 • 

da)'• I would be Ter7 clad to haw 7C¥U.r opinion u "° t..be reuibillt.J 

ot the proposed eo-... ud whether or •'- 7ou 'tlO\lld lia to pertora 

•o:ma joint experlall\a. 

WilU.. P. Friedmn. 

Code 6 Olpmr SeoUon,. ocso. 

Declassified and approved for release by NSA on 02-04-2014 pursuant to E.O. 

13526 
.. 

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I 

• REF ID:A67596 • Ce,f'(f l~}£t"JTJ~L­

-:;:::"' 

i. Thls propoaal aoatemplatn a ohange t.._ dlaa to •lid.lac 

•trips, eaeh to be long •nour..h to •o_.te an alpMbet, et II lnW1'1 

(a ropeate4 11-l•tt.r alpmebe\)• 

2. !be •vipe, inat.eP.d ot being tlat.,. "° be aq•re pri- ~ 

braaa, wooct, balGtli+.e, •M• (ILl\Y llOll1l&rplJtC •iierial), a Gl'OI• ...U• 

ot whlah would a. appl'OX1l9tely l/f!' aqtan. PrllllB approdatel.J u• 

~ 

loag would ••mt nl•lJ• ~ ~ e..e_ ~ VV\, ~ ~ i 

fS-.{' ~ ~ \.U ;r-~ 

s. A at. would aonai•~ ot 16 p:rl•• \o eorreapond wl'Ua preaell\ 

16 d1ak dft'l•• ..U prl.aa to be nube"4 u t.1 * .... a.\ pr-11eat. 

wi\h tlw dlllale 

4. an Ilda or ta. ot a priaa to lMar a .S.ncl alphabet., all 

alpbabet.a to be dittenn.. aklng tht .. prl- equlftlent. to a an 

ot 100 alncJ......ipbN>et a'tripa• Tm• the origl.Ml. 18-elphMe\ 1yat.a 

l>•oome• a bQ~phabet aya\ea wi~ .., lnarH• la .,......._ 

lh Jr.oh alphabet on a glwn pri• to M labeW a, t., e, • 4. 

(Alpbtllna ta. lb, lo, 14 would • enUnJ.7 ....iaw a-c ~.1.,.1, 

an4 urel&W 1\o an1 o\bltr alphabn or any ftbW ....., u iDdt.•'t.H 

unar •·> 

1. U.. 1-J ..... or phrMu .. at p~ .....i.ep111c a latJ ot 

I& n\lllbera, ae a'\ "'--'• 

T • In N\\f.JI& -.. tM •as.a. 11t• ea _. pri• woalct N inill.•'84 
, 

f' 

J I 

,, 

I 

i'I 

• REF ID:A67596 • 

bJ a 11.&b1ldi&ry lndl•t.or &tfflape4 from the lDt)' • Aa ....,1e1 

Dlvtde ti)) t.ho noM!lll alpl:labe\ ln'\o ~ Motlw• •klnc 

't.he reep94t.lw tot.5il frequenciea ot tbhe &G"tJ.ona u net.rl)' 

equal as poea!blei 

AJJCJE 

& 

- PG.NIJKL 

b 

- - A i.11nwr r..S.w. '\ha llldl•'9• !- ~ !! or!- d.e• 

pencllaa on wbloh ••ot.lcm. it. talla lnW• 

ChoHing the ill)' •or4 l:KPUILlCU. an4 •n'fl.1t1 \he 

IUlllrl-1 .. ,. 

i a 1 • 1 • ' a t io 11 11 11 l& :u 11 lf 11 11 ao 11 a aa • 

S.Ja B E P TJ B I.. I C J lf R 8 P tJ JI L I 0 A. I R t' P U I 

30-8 •lT•ll-1- ll-11• & • l •lMl• I •11-M• 6 •16-11-f •I •11-11-10-U..& 

o- .., o -ct .... 'b • 'b ..,.. - • • •- o ... a • • • d •a • b ete. 

A ~tl.nemant rrould 'be t.o uae ~ ditteres 11~1• et a, "D1 

o, 4 tor the lnd, Srd. •. rapeU. t.ion of ~ Y'.A)';/ "WON proper. 

8. Th• torecolnc i• only an nuspl•· *DI other met.ho4e er inlll• 

oatinr a nomplet.elJ qaUaat.lnd-nndom ~ ot 1nd1•t.lou ot 

"alu U!'" owld be uaect.. 

t. It. ie poae1bl• to uae a dlthr•t M\-up u rep.ria \lw •a14a 11p• 

tor different ....... , on .. 1 t.!uNP the UJM DW119r1oal m, 11 empl07ff.• 

~w1, •• , .. '11&~ ~ n.rn tlw nUllMn ot the a,..,. 11•1T-e-u. 

ror one ••MP ta. oGlllbi•tion ot'td..s.. up" mi.pt, be 21&-4e-l.Ta-lll-llbJ 

tor ~P ..... lt. lllsb' M 11....,_1.,.,_.._Ut., eta. Tartw •tJlodtl 

of 1ndieatlnc tM• •hil.ap• 9l 'M Ud.-4. 
• • REF ID:A67596 • 

10. on• atep turtlwrr ~ ohaJICN t.n •aia np• Id.pt be_.. tor 

auoa•111w llDM ot 16 l•tter• wS.t.W.n a ....... OeDlldlJrilrc onlJ tM 

tirat nw pri .. ta mmber ot persana'1e• ot the tour ., ... t.1 •*'• 

• olt J61. 'flll• wn14 allow mob roea tor ftriaU.• and. w111« ~ 

oonaS.'19,.bly ino~ \he clitt1CM1'1 et analfd•• onl.J pnftl.eal _. 

•14-n.Uom ot taolU.~ 1A •l:l.Plo:;•nt. p1aoe a lWt. upoa ~ ftl'labllltf 

applloal>l• w1Wn a ••1&p or betireeD auooeaatw •••&M• 

ll. llw pd.au ld.ght, ~ •ld.ll.1'&111 ld:ap4 &\ '1w mlMle, •u..ial 

thu to be toldlld double, •--..t.111 iiM .-..... •lM '°a.it-~. 

Or tbeJ •ab' w hbpcl to told Viple, O'f quadnlpl.e, •ile. ta.le l• 

laportan'\ tor ai.U~J field uae. 

N1 a, 1911,. 

ft&ahing\GD, l). c.. 

~ ~ Q. ;,....~ ?r-.J:"~ ra.1uaa r. 11'.rted.un, 

o.c.a.o.