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8, PALMER STREET, 

LONDON, S. W I 

ABBEY 7800 

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Re:f'erenoo: r/26P/'2418 

Dear General Canine, 

REF ID: A53635-

OFACES OF THE CYPHER POLICY BOARD, 

Cfo ROOM 9 

FOREIGN OFRCE, S W I 

13th Kovember, 1953. 

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.As no doubt yau 8.%'9 aware, the Oypher Policy Boe.rd bas -ror •e1».e month8 Mell 

oonaidering th& possible need to re-orga.niee its supporting organiH:Uan. 

Comiderable progress bu bean maae_ in this direotJ.on but there are still ml\}" 

important aspects ~ this re-organization yet to be reaol Ted. 

In September laat the Chiefs of Staff took note of the general nature ot 

the re-organization which had. been agreed by the C.P.B. !l'his conaiatad in the 

main ati 

.A.. 

B. 

o. 

Widening the tel'mll o£ ret"erence o£ tho Boa.rd. 

.. Strengthening the ma.in poliq making acm:a1 ttee in eupptirt or 

the Boa.xd. L"" --,,.,. -

.Appointing a D:lreot:or to b• reapowd.ble for the executicm ot the 

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l agreed poli~. 

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3-'te.blia~ NI .Agmey in support of the Dlrectora this AgfmoT to a.be~ tJae existing Secretar:La.t of .tile Cypher Pali'V lDlrd. 

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-•-4 

'!he terms ~ ~erenoe ar the Boa.rd have been widened to includes-

( i) 'lb decide ..questions ~ polictr af'f'ecting the •ecruri.ty ar all 

pra.otioea and prooed.urea used. in oommmi oatione tran.'Jllli!l!licma.! 

(11) To provide asoari ty appreciations and advice to the appropriate 

authority regarding the security ot non-oaammioationa tra.nnmis•ic:ms (eog• Navigational Aida 1 Badar1 etc.) in respect ot the 

intelligenoe which ,_,. ba derived frQDl such tranamiaaiona. 

(iii) To px:oricle aeourity advice to the appz:-op:d.a"te authority rep.rding 

Commmica.tions Deception and Radio Deception. 

~ 

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The. preaiee reaponsi'bil.itj-"° ~ the C.P.B. tor Research, Dewl~~ and ~;,u~-r~ in tbs field of ar,yptographie d.evioes baa yet to be d91"1nad-a:id-tA!l!I 1a c1epen ... 

dent in part m the outcane ot a separate investigation 'lhieia. ia beii!g OL."'TJ.sd 

out at the request or tlle O.P.B. by a representative ~ the ~ of tha 

.lletence llesoe.r~ PoU~_Qoc?:d.tj;'"' _______ . _._~ --~"--- __ -=- i 

1'1th the w:l.dene4 teztna o'f' ~erence, the tit'le "Oypb.er Polioy Board• does 

not aeourately' repnsent the Board'• reaponaildlities. tt i• probable, theretar•• 

that a new title wt.U 'be tcnmd and "bdio am Teleo:Jl'iiJl'.mieatt~a Seourity ~~· 

ha!t been auggened but not yet agreed. It ia not cortain tha:t the BoL"l'\'l ~'\aelt l 

will oeutiut1e in its }U"!aent tona, it ma b.cnrn'er been agree& tbe.t W.e queaUon 

ahU.l ecae up tor rerlft' when the new erganization has been rumdrg for a y..ar. 

Lieut. Genore.1 lalpb Cam.ae, 

Hatimfll S.our:l:t.7 Aif•ner, T~, D.O. 

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Declassified and approved for release by NSA on 02-07-2014 pursuant to E.O. 1352e 

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REF ID:A53635 

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EO 3.3(h)(2) 

PL 86--36/50 USC 3605 

1'he ~ t_ti'U ot ret'uenoo- at li) am (il) ·~ int~~ turtber point• 

t'l be' :re11olTed. !'hero mmt at pi:esent our Britiab .oloW ~•tian:a­

'.ll•otrcmica .Baud wbiob bit.a a<ne i.:sponsib1l!.t;y tetl' tran_,""'-c:c ee~ty aD4 

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..elao our Oodrol G£ iad.\o ~t..1-iQr.W ~ BrQlt .• ~ing Sv~~ t~" llb!'-Jh S.. ~ 

ru~111i'bl• -rcr tho pali.oy atte~ng tbe dcda"f ot tJae \l&"4i b7 an ~- or .• 

Ocmun1<'4tiane ·em 1'Nl...Ca~i«t1'-"-ti- vw. ~is:tJ.u!fOill!I .._Wl't;l~s. 1"~\ ·chit u. r... u .· · . ~ 

na-n,pti~ aida. We have yet tc ~...ne ~o:ls•J\r ....... ~ ... •· %'1··· ... ~R-~1.!'11.l· ..... \t.y 4~ :..: _~,.-~;f aa bo't'ften our Im~. ~~rt 1hue two mp?!ill!:~·-"~• . . . .. , . ·. . ·-.-:- ·· .. .. . ·. . .,, 

· !he Jllt.."l11' open.timal w.M. tt.~5~~l.~ (\.+.?)-tli;2 at:f•~~.tl:i• '04• ~lVC¥·. ~· ··~ ~ ~~1·~~ ~.;!.!ti!# tar N ~te rol.at!omhip wU:h ~,. ~t.t~J?r.!~ ~ .·. ·.lfi 

over5aas authoiitL•s -m;'I!; ~ed.,. ~w _r.,~. ~Q ~· ~ O'~ 3-!l.\'! th.ii:: ~ ,..._ ...•. ~·~ 

lstt 'Gl'ltu the. ·nb-..:tar.- c.r· ti:.s zi~., J&ciq ·?ie:l 'b•~ ~de'-',.-···~-· , · · .· · ..... ;:. ... ·-.'l 

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trl:1:!!~~,.J/! ~-"f!is t.s y...ms.~ Chii'i.~~:::, -~-~~l~UJ:e tM -tt~-~ .!:d.-tt1:!.t'2."f. · ···: .:--t 

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:O.,..rtr.91J'?St.s> aa.· i:Ji ~~ 11!!11 M.> 4 ~"t·!.'?~-~,.:-...:;...:,~.- :·~!e ~i'r~~~·r· i:,..{: .. ~'-l,- ~~;ii. 't:n6· .::~ 

.m.~~,,,.···or·t1ie ,_"· ~.. t •'*~oh• d.-t .. t ,,.;.:f!4....Tlg ~-ef"l..z \T.~ ~.:;.::!d~t..~ ·. ... . J ~ctvn" 8.al"""i;t3 ~- '.~";:j.~#Q.~~~1;1-.7'""'· . . . ~'. :I 

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~ot 'th• &lJ" of Ute cp::.!ti.ng a~l.'1' ~.!f!-~171.i. (,;"? ~"\b· WW ~r..:;-'.:'.'-:;;i.t.~ O"lt" flw.:;;.=.tty t.. 

~ferenee 

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ana. il~ "i-4'.i .;,i' bie v&\7 re0!4"";~ eJ;';'i-1. ~t ~~;;. ~-~~, t..i;.::,t :r· S!..~.!.a -~ ·t .! ..... 1 ,,,,. .-....-.... ...... ,. .,. ...... ..;.. ""_. .... ,... ... ,,..,..... "'!" !,.,..- .,; ..... - ......... •g., ... -· .. \~ ... ,. .... .r.:... :-· .. _..._ ... .&.8 • .&!;:'!" ............. v.f..,,-.• :i.:i w.- --"'-"'"""""'"" .... _,,jl.,. 'l:W ..... , ...... __ . •.·. \.·.·· ' ... :.. •. '$ .....• -· 

~ Dl.reetor_ ol_ tll~ :r~f5T ~ \'tM M'7" e~. to ~ •~ t~i.t . .i.1gse~:t-a8. .. t~t ~~ tan U'ftllgmeftt ~U.i b~ sr.b~~-:'11'!.n aft.re ab ~t!le.. l&,.~• ~-ill of ., ~'-' ~eOMsiv 1M ~ ptt::.od. <it:•.• !rag W1'l1. • tni1 v!.i,ib ~?! ~ \~iiim.ia t~<.· . . i 

be raponai blfl _ '!'"U the -ll;;.-e.;st1.:1ft.('1Quisj.naa=i r:.t: . the ~~r:i:- ~ :);.~ !'."a' Pollrt!. 2...~ .. . :~ 

I am oc:mtimrh'-S a.t lee.st· f"ot· f;ha ;-)tMn1• to M S1·4.lr-5U..:fj of "t£la\ E,y;;'."{~. ·. . : "f. ~-""Yer• in tbt JJoi"....r~· i'ti·!;~l :"§1.ll e.a~ t't<ll ;-·~y-.;,111~ .... :i.M"l:'l"ty A1'id · . .J· 

l rsl».1.l the.I!~"'\ ~ b:l.a a.:.1";\! ... .. · .. · · · · · . . .. .- ·'i. i.·· • . . ' •. ::.. 

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!!iiibc'to I b&ve be~ tho a1n l;f.i. ooot.e.ot 11i:th i--t.~.J. ~ .~ .. ~.A. •. ...-.. , ti(i51£ · ·i. 

•wt.ti:an llD4 bet~ .t &;er-;a i.nto the P13!..t-i01\ of ~ ~ :b. ~..,. Mn11 ~~r:ey l · f.;.. 

4bftl..d lib to thank .;:1~~ ~u! 4-\'! -~ ·JJ.,S • ..A:s. t~ ~ ~ wa.lue..bJ.~ 81.Ud. ~-= -. j 

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Chair: Director General of Signal Intelligenoe 

lMaJ .Gen. Sir John Sinclair) 

'lb.e Rt.Hon. Sir Edward Bridges P~ent Head of the Treasury 

{appointed in a peracmal oapaoity to 

represent the interests of the Civil 

Departaenta) 

.A. representative ot the Chiefs ot Start, 

Lt.Gen. Sir Nevil Brownjohn 

(llili tery Secretary of the Cabinet and 

Chief Staff' Officer to the ·Ministry ,,f 

Defence.) 

Ohair: Chairman of Cl'B (at lust initiall:r) 

} Directors ot Signala of Service 

Depertmenta 

' Direotor11 of Intelligenue of Ser.d1::e 

DepartllLElnt• 

2 R'9presentativea of the Ci•l'il 

Depllrtme&1ts (c-n• ~o b! a -=-~-m.mii.:•11 tcz · 

Director GOil~ D 

I"ir-eotcr of the new Ag eJ1:).Y ~ 

EO 3.3(h)(2) 

PL 86-36/50 use 3605 

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C:11=be:t' PoliOJ Board 

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DefoSnce Oc:nmitte~ 

Cnitf's,of Staff' 

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