REF ID:A64721 €()NFiilhNTiAL 5)-4 5 .. S T

M" F R I t D M f\ 1.J

DRAFT SAMPLINGS

Unabridged Cryptologic Glossary

OJ'FJ.CE OF !MIIDG

1. !be enclosed term are circulated tor the purpose ot staD!ardizatian ot the definitions and 'tor fixing the exactness ot meanings. ID -.rQ" cases these tems have ditterent •aninga 1D dif''!erent parts ot the Ageac7. In acme cases tbe terms have changed 1D •uing s:!nce their conception. In other caaes the teraa can stand on their own aerits as defined but bave been aub­aittecl 'tor veri1'icat10D. Lastly there are those tel'llS which need more than one definition. It 1a to sol:ld.ify this uiorphoua aaa 1nto a clear cut, ••­able whole tbat these terms are subm:tted for c~t.

2. When a tera baa been approved for ue 1 t will go i.Dw an unabridged cl'1Pto1og1c gl.oas&rJ', which, when finished, will be mt S!CRft &Dd will have a CCIBJ(ltl) annex.

3. It is requested tbat aeriou tbouglat u4 cona14.eratica be given to these te1"118 and their def'1n1t1oaa &Dd tbat the available ap.ce f'ellovi.Dg each term be used f'or c~nta, corrections, sugestiona, u4 revis10ll8 to the presenttel'lliDology. ·

Ja.. It is further requested that these c~nte be returned. b7 6 JUN 1955 in order that the7 -.;y be used ill coaJunction with other •teriala to Pi'Oluce the c-.pleted 1Jnabr14gecl CrJPtol.og:ic Glo••&rJ' at the earliest possible date.

After ateriag ccmleDta 1 tear off' this page. 'fhe enclosure is selt-ad4.reaaed ta; return to the Office of ~:la1Dg.

€0NFIBEN'fIAL Declassified and approved for release by NSA on 01-10-2014 pursuant to E. 0. 1352B

..

!'O: Ot'f'ice f>t i'raia1ng Gloas&r7 Group

UllABRIDGID CRYPfOLOGIC GLOOSARY

Suggested ~rma and Det1n1t1ons, witb Correct1cm8 (tirst circulation}

TO: Ot'tice of Tra1ning

FRCJI: .... ;•\1.. t {;..~::·:.H t.·~j s .I • • .,, ._.;. ;·~f-

Date --------The eaclosed te:nu bave been circulated withia this area of tbe

Agency tor ccmaW-eratioa AIJd c~t by all coaeerned.. Ia each case where 1t baa been felt that a cham,ge 111 the tera or a cbange ill the def'1n1t1ca. of tbe term. was aeeded *he suggested cbaDge has been entered. in the apace provided.

€()NFIBEN'fIA:L

eoNut:rl.~ A:L .I' IJ..l~I, I I Suggested Tel"llll aa4 Definitiou tor tile

UllABRIDGBD ClllP.l'OLOGIC GLOBSABY

accuaulate, v.t. 'lo add mmeric quantities by nomal arit!metic. !be u-.1. illpl1cat1oa 1a tbat there will be more thaa two addeala.

Ka.ch1De terainoloo. C~t:

a44reas, ·coa.1uact1ve. AD address group, the •aniD.g at whicJa is iDccmpl.ete unless used 1n ccmbiDation with oae or we other address groups.

A c~catioa term. as defiaecl in N!P 167. CCI rent:

add.1tive loc•. 1'l:le location wi'Udn a long key ot a particular additive; e.g., the page ud line and col\Jllll Oil tbat pap where a specific a441-t1ve appears.

Ccmaent:

agent. Ia iD.telllge:ace usage, one who obtains or asaiata 1D obtaiaiag 1nf'or­•tioa for intell1gence or counterintelligence purposes, but who m. ao obvious ccanection with arrr intelligence age:acy or otticer.

!Ilia de:f'1B1t1on cc.ea f'rca JCS. Do we use it in the •- sense 1a this Ageac7'1 Ccm1e11t:

&Dtelma, a. .All elevated u4/or extended syatea of conductor• used tor the tr•naw1•a1GD arlll/or receptioa at electraaapet:le waves. Also called aer1al.

autheaticat~Olt 'test el.emeat. All el.emat on which aa autlaeaticaticm ot a waage, tranmisaioa, or ataticn is based.

!'hi• is variously defiDecl 1D several places. Ia the above clet1n1t1e adequate!

l

eONFIDEN'fIAL

ban4w:l4th, n. ~bandwidth occupied b;y an emissicn is the bud ot frequencies ccmpr:l.a1Jlg 99 percent of the total radiated power enemed to iac1ul1.e &JV' cl1screte frequency cm which the power is at least 0.25 perc•t of the total radiated power.

As clefiDed in ACP 167.

base Dumber. In aeteorology1 a one-1 tvo-1 or three-digit nmaber ideJd;ifyiag a •teorog1ca1 observation center am. alMat a1waya traasll1ttecl ·as 'tbe first element in a meteorolog1cal report. Also called atatioa 1.Dllicator or 00 Dumber.

be•/lobe switcbiy. A method of deterainiDg the d1rect1oa ~a remte obJect by CCDJIBl"isCD or the signal.a correspondiDg to two or mre successive beaa angles, differing s11ghtl.y trma the directtoa ~the ob.ject. Beaa sw:l.tch­illg -.y be either continuous aad pericd.ic1 or disecmt~.

As defined 1D A/JP 167.

book. •asye. l. ID CCJIDl'l usage, a circular •ssage; q.v. 2. ID u.s. cca­mmlcaticm usage 1 a •••ace which is destiDed for two or .ore addressees and 1s of such a nature that the orig:lnator conaSders that :ao recipiat neecls to be informed as to the other acldresaees. All addressees are indi­cated as action. Book •ssages are prepa.recl 1D the a&M -..mer as mil.tiple­addresa •ssages with the exception that all addressees are :1114.ioated. as action and the book message is sent to each addressee aeparateq.

2

CONFIDENTIAL

REF ID:A64721

€0NFIDENTIJ\L S!.i!.I n. 1. A ccapcment of a Bagel1D key gmerator. 2. A matrix.

card coding. !'he arrangaent of PQDChed ho1ea ill an Illl card which will 'be interpreted b7 an I!ll -.chi.De as a number, a letter, or a special character.

Machine 'reminology.

casebook aumber. A number designation for a circuit, s'Ub-net, or aet.

eatal.og, n. A syatematica.l..17 arranged record ot all the relevant data ot a ccmplete set ot h1:PCtheses.

ell&:tf', a. Electrcaagaetic-wave reflectors ill the fora or narrow •tallie strips used. tor creatlllg radar echoes tor conf'usion purposes. Bee willdow.

chain. 844::1.tica. A cryptographic process wherein a sequence or group is d1a • 8'11sed b7 the elements vith1B it; tile f::l.rat d::l.git is added to the second, the second to the third, etc., &114 the last to the first.

cbumel, n. A facilit7 tor telec<1m1micat1oas on a ays'tiea or e::l.rcuit. Die Dlla'ber of 1.ndepellden:t channels m a syatea or circuit (derived 'b7 tre­quenc7 or time division) is :measured. by the maber of separate CClml"Di­catim facilities that can be provided b7 it. Rote: !he tera ·cba•el is also used frequently in conJuncticm with a :tigure or letter to iclea­tify a particular facility exiatin& between two ataticms.

3

€0NFIDEN'fli\L

REF ID =.i-.PA1i1 €ONFiDE1~·1·1AL

characteristic d.istributi•. '!he distribution ot plain-cipher paira rith:lll a conversion aqua.re.

cbecker, a. <Be who reviews a translation tor accurac:r b;r ccm.par:lllg it with the or1g1nal. text or trauaission.

cireular'1lea!!f!· 1. A messase destined ter two or J10re clitterea' recipients, eacr;r.pted. in crntograpbic ke711 held in camaoa b;r all recipiena or the message. Usually 1 but aot necessarily circular messages pus trca superior to subordinate. 2. A book 11eaaage, q.v.

circular keys. Cryptographic ke711 used to encrypt c1rcular •aaagea, i.e. •saages pa.ss:lng to two or aore d.1tterent rec~1ents1 the kQa·'beillg held b;r e&cb ot 'the recipients. Recipients ot •••ase• in a cenain circular ke7 normal.11' are not authorized to encr;ypt 11essagea uaillg the same circular ke711.

cluswr, a. A series ot plain equivalents 1n a coele each posaeasillg acme feature cwn to all others in tbe aeries. A cluster m.J' be formed of various intlectioas ot a verb or ot various phrases each ot wbich ccmtaiu the ·- illportant llOWlo

code, cmbat. A code or ci:Paer, the purposes ot which are a1:mplicit7 &Id speed. in addition to aa much aecurit7 aa 1s possible withoart pre­.judic1Dg und~ such s:lapl.icit7 am. speed.

As defined 1D ACP 167.

€()NFIBEN'FIAL ·-·-----·-·---------------------------------------

U.F ID:A64721 ~()N1r IDENTIA:L

ccmcealllent. aystea. A •thcd ot secret ccmmmication so desipecl aa to coavq a secret message without its presence being supectecl b;y others than tbe addressee. Ia its most usual fora, the pla1Dtext elemats are coa­cea1ed by caabin1D8 tbs with extraneous plaintext elements in sucla a way that the end result is aa intelligible and apparently hmocent message. Cf. open code.

c!!Jllpted matrices. Two separate :matrices ea.eh coatain:lllg a dU'f'ereat sequence usel 1n a two-sci-re checkerboard.

counter, •· AD electrical or mechaaical device which can accept numeric quantities, bold them, add (or subtract) them, and yield their totals to be punched, printed, or to ccmtro1 other operations.

Machine tel"llinoloo.

da1J;r film. A RAK film on which is recorded a cipher text or text subJected to a key in use for a s1ngle day or tor a single message.

decccle, n. In aryptlmalysis,, the listing ot a code book in order by tbe code group~ lJl acb::l.De tel"llWlol.ogy, a short term tor "message decccle,• that is, the :message with meaa:l!.n.gs applied.

Machine term1Bolog.

de-postiy. The process ot recovering the latent group.

5

€0NFIBENTIAL

ditterence book. A list which presents a large sorted set ot clitf"erencn ot code groups &Dd. the code grCNpS which prod.uce the cl1ff'ereacea.

dis"taace wuriy equ1J!!!!t. A radio-navipt1m. aid 1D the aeroaautical radio-na'Y'igati• service that cletel"ldaes the clistance ot an iaterregator f'rca a trampmder by MUUriDg tbe tim ot tranaiss1• to and. tr-. the trauporad.er.

As cle:f'1ned in JABAP 121 A.

d'!mV letter. A character 1 ua'Ul..1¥ one ot several characters er ll"ftP8 ~ characters with no plain text aigaiticaace; iuertecl within a crntognm with the intent to del.&1 or preverat its aolutioar a DUll. q.v.

edit, v.t. 1. Ia crJl)tolOfl1'1 to prepare textual •ter1a1 tor the next step 1n processing. 2. !'o sem.

tacilitz, •· 1. AD activity which provides the -- tor aaa:lating or w.Jr1ng easier any f'mlct1on1 of'tea ot a techldeal. or testiag nature; aClletimes uecl in the plural. 2. Aay part or ad.Jwact of aa activity wbicl1 coatr1b­utes to the peri"ormance o:r its hac'l;ion by prov141ng sClle specific tnea ot :pQaical ua:lataace.

As de:f'iaecl by .JCS.

6

CONFIBEN'FIA~

~.a. Aircraft, sJaip1 or ground vehicle eapecial.q equipped tor the cle'teets.oa, l.ocatica, record.1Jlg1 and anal.1z1Dg ot e1e~:lc ra41at1oa.

As detilaed by JCS. Shoald th1a be lild.ted to "electrGllLpetie•t

tilter, v.t. 'l'o reduce or 118.l'TOW' clon reports of,aircran w detiaite 1.Df'oraticm about hoetile a:lrcra.tt.

tilllleq, a. CY'=le 1Dterruptioa 1D Jl&Chille cipllers ettectecl by t1ae arbitr&r7 a4vuc-nt ot oae or mre ot the vbeels. llamed. 'tor "1le Films vllG were the tirst to 'be observed using it.

frepncb alter-.tive. A frequeacy or a gr-oup ot trequeacies which my be aaaiped for ue on Q7 challllel1 or on a part;icular Mawel, at·a cer­tain time or tor a certaia purpose te replace or auppl.emat the :tre-queacies ~ used cm. that ehumel. ·

As detiaed 1D ACP 167.

freq!!!Cl CCNDt. A frequency distribution.

trepenc1 clistr1but1•· A tabulatioa er the trequene7 at occurrean or plaia­text _. cip'berte:xt units :ID a message or a group or messages. A treq11eac7 ccnm:t.

7

CONFIDENTIAL

~....,!D: .&:64 721 CON~uFJ1~TiAOL

..

trequeactJ1st. A frequem7 41strilnlt:loa ill . tabular tGl'll, vS:Ul trecpnciea ila iil 01'.der trca h1gh to lov. BO!I: !be lfach:lae Diviai• calla tll18 aa iavei-H freq!!DCY 11st, q.v.

fr•CJ,!!!!Y table. A trequeacy d.iatrilnrl;ion.

g,. Used as a aJlibo1 1a code recovery ad 1a tr-lated wxt to mean "garble" or "garbled".

p.rble, •· AJrT iutaace. ot UD1.Dteat1GMJ. departure trca the correct ta ~ pa.rt ot a message or tran•:l••i•.

A.a det1necl by .JCS.

K. Used. as a· •Jmbol ill code recovery to illdicate ~ical MaD1a8".

!aplia, •· 1. ODe ot a amber ot JlaCJaillea :laveated by Mr. Boria B'aplill. 2. Specific~ models e-36 &1!14 e-38, the prototn- ot the u.s. Artq M-209 which prcd.uc:ea a pol.1alphabetie cipher, (with a key so long u to be noarepea"ing) by Mana ot rotors and llOVU1e lug8. 3. Loose~ 1 trattic eacipherecl oa such a machine.

8

C0NFIBENTIA~ ··-·-·-·---·----------------------------------

headiy, a. 1. !be part ot an ord.er containing the desigaatioa ot the issuing uni\1 place ot issue, hour u4 date ot issue, f'ile mrtatica, claas:l.f'1ea­tioa1 serial nalber, am ref'ereace to -p(s) med. (JCS) 2. !'hat J18rt of' a •saage which contaiu the call preamble, a44reaa, allll _.sage 1MV'Uc­"1eu· 3. !'hat portic:m ot a ccapl.ete illtercept .. saage net ac~ trau-111tted by the origiDal correapoment but applied 'by the 11l1oercept eperator. If.. Loose]Jr, that iart ot a message prececliq the text. 5. 1lhe d:lreeticm ill which a ship or afrcratt is poillted with ref'ereace to true, mpetic, or ccapass aorth. (JCS) 6. !he orientation ot &ll antenu..

Bolleritll acbille. (Brit.) Any standard. pmche4 card. -.chine ot the ldal -.mi­

tactureCl by the Iatenational Buiness Machine ·~. Iaveated b7 llerm Boll.erlth of' the U. S. Census Bureau. ·

I. c. Index ot Coillchlence.

i41erplltJom--ilpare 41gra!!tfu A special. tnie at d.ip-apbic 141cmi9rpla1 part or complete, pee . ~ cipher text proluced b7 a tour-scpare a711tea illvo1v1Dg a •trix ill which the arrangements of the letters 1a the pl&ia cm:paeat sections are known.

1at1aite k.eJ. A JmJiBg sequence the leagtla ot which exten4s or cu .1HI prolonged to an il&fim.te number ot elaeats. A noa-repea~iag ke7. Also. Jmcnm as illdetiaite,, 11nl1•'Stecl, rumdng,, or c•tilmowl ke7.

9

C()NFIDEN'FIAL

:lnf'oraat1ra •tiOD&l el.eMDta ot. !'hat 1ntomat1• which is required b7 the Peele · Gover-.t to assure tJile wt ettective accmpllslmeat ot 'tbe intelligence mssioa related to the national security ot the United Sta.tea.

illv:erse trep:ac1 list. See frequency list.

iaversioa. A challge ill the aormal order ot words aDd phrases.· See trauposal.

ICaaiski •thcd. A method of solving polyalpbabetic substitution b;y factoring to. dild the period. Bamed. for MaJor Kaaiski but developed by Augute ICerckhof':ta •

Is this term still 1a uset

key baalt. An Ordered listing or tile ot expanded text, potential or reeevere41 shovhg the uique or 11Ult1J>].e key or ke78 1-d.iateq prececliag aad. tollov1ng the sorted groap witll :proper 1clentif'1cation of the source, whether crib or overlap.

key illdex. An ordered listing ot keys 1 showing preceding &Bil tollow11lg ke78 with proper deaigaationa of source.

laDpap couultant. One who has an expert knowledge ot a di:tticu1t laapage or e:t a group o:t lallguages1 a.Di wbo is called upoa to solve caa:,pl.ex l1ngu1•t1c problems 1n those laDguapa.

10

CONFIDENTIA~ '---------------------------------------

REF ID:A64721

€()NFIBENTIAL

level, n. lflle •rova• ot a canl.1 reterre4 to aa 121 u, O or tsi 1 1 2, ... , 9. In tape, one ot the f'ive (or seTim) stre- ot siDgle 'balds a1GDg the tape.

lfachine teraiDol.ogr.

line-up, a. AD overlap. !be l:lae-up is said to lae absolute it 'tlae exact pesi­\ioa in the additive book ot t1le starting peilat is lmowa; it "1le stanjag points are only lmcMl relative to each otlaer, tlle llae-up 1a said. to l:te relative. ---v. t. ~ set in depth.

11.stfti•g vatch (radio ccmmmication) • A cmtiauows receiver watch esta'b-11abed tor the receptioa of' trattic addressed to, or of' iD.terest w, on Ullit with ccmpl.ete log ~ional.

As defined in ACP l.67.

M. 1. Used. u a val.14it7 classiticatim in code recovery to .... : "Bngli•ll meaaing 1s certaila eaough tor unquestioned. traulatioa, b11't preeiae wording or ccmplete tara is undetera1ned. • 2. In CCllDP.r vaulat1oa1 uaecl as an ab'brev:latica tor "m.ss1Dg11

•

JIAI. Jlaster additive (indicator a441t:l.ve) 11141cator. -

-.,, lille rfltrt,e/roo.t.e 4iagraa• A -.p or overlq tor aipal c_..aicatioa operations t.bat shows the actual routes ud t;ype ot ccma'VUct:I.• of' wire circuits ill tbe field.

As defillecl by .JCS and 1D ACP 167.

11

€()NFIDEN'FIA~

W!1'191 •· A a79tem ~ receiving ellell1' aipala u4 rebroed.cutiq thea • the •- f'reqmnc;y to coaf'uae nav:lgatioa. !he •acoaiJlg atati .. cause erroa.eoua 'beariaga to be olt1iained b;y enmq aircra:rt; or grGUDll sW.ttou.

mto •••&ae· A Msaage which has been relaqecl becauae i't wu or:lg:f••l17 •ise'ith"eaaed.. ·

net, n. 1. A Dllllber at usoeiated gr4Np8 all cmtrolled. at a c- loc&­tim am p-enmble aerviag the .._ cmmon superior llea4quartera. (CcmbiDecl) 2. A grou:p ~ 1Dter-ccmnm.ieatina ra41o er lew'11Jle s'tatiau.

:aet, c•trol.led. A group ot atatioaa Oil a c~ cba•el et cGl"Naicat1• vfG OM atat1CID. d.eaigaatecl aa control aDd all other atat1 .. trw­aittiag cmq vhea granted pend.aaioa to do ao.

aa-Cmlft. Iatomaticm trca a source other tbaa ecmnmicati• 1Jrtell.1geMe. fhi8 tera is •1DOD1JIOU8 with 8114 pre:f'erable to the -wr.. •collateral" as it applies to the o~n1cat1• 1atell1geace field.

BSD. 1. A trigra:ph appliell to a Msaaae which does aot bear (ill clear car - eipber) a recopized diacri•iMn't. Shm1; tor DeW •J&tea d.iacr'bai••»t.

2. BaV7 abbreviaticm tor llaval SU~ Depot.

12

C0NFIDENTI:A:~ !.__ __ ··-·--------

o. Used as a s;Jllbol ill cOde recovery meaaillg: •0a1t part ot this tar correct - weantng.•

ott•n mf!1•· ftis tera has beea s~ttecl for 1Dclm1on b1R withcNt a le tlGD. We suggest the following:

l. Ia ceyptaaa].ys1a, 'that cOD!iticm which eld.ata 1dlea tile plaD.Wxt ccm;poa•t aneara oae er mre •Jl&C•• to tlae rig1ilt R l.eR1 ~ the rigllt• ot the awl. w:lllll.ov aettiag. 2. Ia •ch:l.ae terll1aol.ogy' • the :poaitioll to the r1.gl:at ot the . ccatrol poa1t1• ot the Muter Jmt card 1a which the inf'ormatica is p.mched illto aec0114ar1 caru.

OIUt::!!l clitterenee table. A dittereace book. lia't1Dg oal.7 the -.J J er ·ot the two cm,plwlltary dittereacea obta1aecl when selected. pl.ira · ot' cGtle grGU.ps are aubtractea (aoa-borroving) • Ct. reciprocal dittereace table.

?. • l. U. S. m111'8.r7 prececlellce proaip tor PBICBI'f!'. Uauall.7 traaaaS:t'H4 aa app• to ensure accurac7. Aas1ped. 'to ~t ma~ter. Which requires ~ d.el1V81"1' to the addressee. It is the higbeat prece4eace des:l.gaa­t1- vhich ·11&1' ·be aasiped. to aoaoperatiaul. Msaagea of ui adwf.•ta'trat1Te •'Wre. 2. Uaed as a val141t7 cJ.asa1t1cat1cm :la cacle rec0YV7 to •mn •11.eatitied portion 1a certaia, but meaaing 1a incmplete. •

13

€0NFIDEN'FIA1' ----------------------------------------

:R!per tape. A medium tor input am. output with certa:ln ll&dlilles 1 Uld tor storage ot inf'orm.tioa. A character ia repreaentecl in cu ~ ot a tape 1 which is nomall.y a vertical a.rraapmeat of five level.a in whicll bole &1ld no-hole def'ine the character. ~re is a ta;pe wide enoagh tor seven level cod111g1 as well as tape to coatain ~ :tiv'e levels. fte density ot tape coding is ten ~· or characters per illcb.

Macbine teraiaology.

prallel cip!ler alp!!abew. Cipher alphabets hav.illg tile .... eompaaeata lnn with dit:tereat .1nt&Poa1t1cm.

pan.plprapb•

Ia this tera still used T

pl!amcm circat._ A telephone or telegraph circuit obta1u4 by liUperDPosDg an ad41Ccmal circuit on two existing physical c:lrouits by •w ot repeating coils.

Aa detinecl by .JCS.

pUo! card. AB Illl card used tor dete1'lda1Dg 'the cl1scr1•1n•nta &lld t1wUng dupliCatiou in traffic received by :-.U.

pul!e, n. A va.r1aticm. 1D the val.lie ot aa electrical qu&Dtity as a tuction of tille such tliat the value departs trm a given da19• tor a time inter­val and then returDs to W.. da\ua.

ii.

C6NFIDENTIAOL

radar al'MMl.cwa. Reg:l.ou obscured f'rca 1obe aurve1 J luee of a radar aet 'b;y obstructiona, either natural or ~1f'1c1al.

re4io guard.. A aldp or ra41o station dea1gaate4 to listen tor u4 record. ti'Mii1•a10Da, ud. to bud.le tratt:l.c cm. a dea:l.pate4 :tr9f1W7 'fer a certain. unit or Dita.

recip:ocal dutereace table. AJ1y 41f'tereace book liatiag both d1ttere11eu obtaiilel·whea selected pa.ira of code groaps are aubtracW. (m• borrowtDg) • Ct. ODe-ft,J' ditterence ta'ble.

recop!"iaa, n. !'lie process 1>7 which a pre4eteraiaed an ot a.aw. Sa _.WW against - or .... pieces ot ~data. If a •Wh·oeoUd;·•­record ia mM.e; 1f' JlO •tch occurs, t'm'ther tea"1Dg is renmel. Reeog­Ditioa, JllM:la:tnev1ae, cu l:lave the :tons ot pre-wired boards, 4rua storap, or ca.rd. atorage. -

recaverz, •· 1. !he process ot -Jd •s crntic text- 1Btell1 g:t'ble. 2. Ari crnt;ographic •terial obta1Ded tJlrough crntual181a. 3. An7 pl.&U.-text 80 obtained. --

15

CONFIDEN'fIA~

rope, electroaic. Electrmagnetic-wave reflectors cw:IRtag er leng stril'8 Of m toil. A aall pa.raclmte or other device a)' be attachecl t.o each strip to reduce rate ot tall.

acritch, v .t. !re teat an asaUJQt;im:a by examn1ng 1"8 illlpliea'tiw 1a coa­Jwtioa with each ot a set ot f'urt.her asslBIPtiona 1a tura, eH•1•'ti»g those cases which y1el4 coatra41ctiou aDll scoriag the fttwra.

aelecl:t:, n. A device which permits 1af'or-.t1oa 1a .eae c' 111 w·lHt·pn· . either ot two or mre cl:umnela 'UDder suitable cOBtrol.a. It ·caa

also be used to direct intormatioa frca either or two or a>re aom-ces to one destination..

lfachlne termillolog.

aerrlce, safety. Aq radio service,. the operatioa ot·· wh1.oh 1• 'd.iree~ related, whether permanent or~' to the aatet7 ot Jmmaa lite and the·aategu&l'diDg or·property.

As detilled in ACP l.67.

!!!I,, n. A point 1D a run at which a banbe stops; especially one giving a solutim:a ot a particular :menu.

16

CQNFIBENTIA1'

tabulate, v.t. To abbreviate the length ot a report b;y su:ppressillg the liat1Dg of eYf1r7 itea, shoving onl7 neceasar;y descriptions at each class, and the numbers it produces--as card count total.a, or true totals Gt a aumer1cal quantity.

Machine terainology.

~ bl.oek. A section ot plain text or cipher text writtea iato a aqare er recte•gle.

trwpaal, n. A cbange 1n the relative, usual, or natural pl.ace or order of;, exchpge in position; reverse or rearrange the sequeace o£. (Webster)

u. Used. as -.ii abbreviation tor "unrecovered" in C<JID'f traaalatian.

_ UD1q11e, n. A plaia-cipller pair which occurs with a trequeacy ot one iD. a BPCD or 1D a cbaracteriatic diatr1but1Clll. ---v.t. ~ recluce a mltipl.e key to a unique key group.

variant ;pattern. A stereotypic p.ttern subJect to variation.

verify, v.t. ~ euure tltat the wing and pbraseol.og ot a 'truaitted. meaaage_conve111 the exact intention ot the or1g1nator.

AB detilled. in ACP 167.

€0NFirlfJN1'IAL

!!!· Abbrev1aticm tor "word" in CCICtlf.r translation.

we1Pt1 n. A number associated. w11iih a recopized group or coalition 111 a ••• testing of data. It is rougbly proportioDal. to frequency, proba­bility, or sane other •asure o't goodness ot a result. !'he slB ot weigbts ot several occurrences is of'tea used 1n ecmJactic:m. with a threshold to suppress rand.ca &DSwers, or guarantees only' good caes.

Machine terminology.

X. Used in code recovery as a aJllbol mea.aing "uneva.luated." Usual.q applied to code ident1t1cation received f'rca the t1eld or.a sister installaticm when there is insuf'f'icient ev:ldence at lfSA tor evalua:ticm.

X ;punch. 1'be siDgle level "ll" pach, uaecl tor ccm:trol. purposes in Illl processing. It 1s represented in -.chille listings by +.

~· 1. u. s. m.ilit&ry prececlence prosiga tar F.LASll. Usually tr&DSllitted as "ZZ" to emnire accuracy. Assigned to messages re,ortilag iait:l&l eDeJ11Y contact, or special emrgency eperat10D&l cClllbat trattic. 2o Used as a suffix on a date time group to indicate Z tim. 3. Used f'ollovecl by a lmmber to iDU.cate the location ot a group f'rcB the end ot a •••age; 1.e., the last group is called Z ¢, the tinh :f'rca the last is called Z Je.. 4. Used u a val:ldity clasaiticaticm 1n cede recOYery to mean: 0 Preciae wording or value 1s certain but the code grcnip -.y be garbled."

18

€0NFIDEN'fIAL

I

D18tr1but1oa Liat

s /ASS'! (llr. Fried-) - 1 llSA-74 - 1 s /ABll'l (CAP.r Jlol.tvick) - l BSA-75 - 1 Pfe - 3 BSA-76 - 2 CCII - 1 RSA-82 - l SE - l BSA-91 - 1 I.II - 1 BSA-92 - 1 il'SA.-'>62 .. l BBA-93 - l :ISA-o63 .. 1 IBA-914- - 1 18A-b6JI. - 3 BSA-31 - 2 BSA-61 - 1 BSA-32 - l llSA-62 - l llSA-33 - 2 llSA.-63 - 1 BSA-3i. - 1 BSA-611. - 1 IBA-35 - 1 RSA-71 - 2 llSA-le.l - 1 BSA-72 - l IBA.-42 - 1 RSA.-73 - l BSA-43 - 1

CONFIDENTIAL . _____________________ \