OLDDL VOOSC TNROD TVOTO SAMAD

Moscow → Berlin · columnar transposition, 24 columns · 1 June 1921 · key recovered from the ciphertext

Voikov to Stomoniakov: nails, rakes and saws

Pyotr Voikov
fromPyotr Voikov
Boris Stomoniakov
toBoris Stomoniakov

American officials copied this Soviet radio telegram at Constantinople and could not decipher it. Under a key recovered here it is a shopping list: hardware for trade with the Russian countryside.

Daniel Bourdeau · posted

Method: key recovered from ciphertext-only · Extent: complete

At a glanceCiphertext-only break · complete

The telegram
Nr 1883/1188/S, signed Voikov, 1 June 1921, Moscow to the Soviet mission in Berlin, for Stomoniakov. Intercepted 7 June.
Where
NARA RG 59, Central Decimal File 861.00, microfilm M316 roll 42, frame 1273. Part of catalogue 669.
The cipher
Russian in Latin letters, written in rows of 24 and sent column by column in a secret order.
How it was deciphered
Annealing against a Russian language model, with no crib. Only width 24 beat shuffled controls, and then the text came out.
What it says
Buy hardware at once for the goods-exchange fund: iron, nails, shovels, rakes, forks, axes, saws, chisels.
Still open
A few words in the saw and shovel entries, and where the key came from. No independent reader has checked this yet.

01 The telegram

Typed five-letter groups headed Polpred Lutovinov Berlin Delsovpra Stomoniakov, with the discriminant Raion
The start of the telegram as the Constantinople operator typed it, with its number pair and the word RAION. Image: NARA RG 59, 861.00, M316 roll 42, frame 1273, via the National Archives Catalog.

The heading is in clear: Polpred Lutovinov Berlin Delsovpra Stomoniakov, then the numbers 01135–26205 and the word RAION. The same numbers close the text, followed by the date, the serial and the signature. We read the signature as P. L. Voikov and the addressee as B. S. Stomoniakov of the Berlin trade delegation; the frame gives surnames only.

The letters are Russian with nothing substituted: across the traffic to Stomoniakov O runs at 11.3%, I at 10.0%, E at 8.8%. So only the order is hidden. Q stands for the soft or hard sign, and punctuation is spelled out: zpt for a comma, dvoetochie for a colon.

02 How the key came out

The solver tries a column order, reads the rows and scores them against a Russian model. On this model, held-out Russian scores −2.14 per letter and shuffled letters −4.96.

Read-out order of the columns, 0–23: 5 17 0 23 9 1 16 13 7 18 19 8 12 20 10 6 11 3 21 4 22 2 15 14. A different telegram of the same day carries the same first number, 01135, but this key does not decipher it, so that number does not name the key on its own. The key's source is unknown: its pattern matches nothing in 14 MB of general English or two George Wither texts, the poet Tiltman found behind another Soviet system.

03 What it says

For the goods-exchange fund with the countryside it is necessary to buy immediately hardware, colon: tyre iron, horseshoe iron; wire nails from two and a half to seven inches; horseshoe nails of middle sizes; shovels for earthwork, square, nine [or ten] by eleven and three-quarter inches, pointed, ten by eleven and a half inches; rakes; forks for hay and manure; carpenters' axes weighing two and a half to three pounds; cross-cut saws, three and a half, four […] by six inches; joiners' pincers of eight and ten inches; for sharpening saws; mortise chisels up to three-quarters of an inch; flat paring chisels from a half to one and a quarter inches; half-round from a half to one inch. Continuation follows.

The Politburo approved "Comrade Kopp's proposal" on 16 April 1921; notes to Lenin's collected works tie it to goods exchange and to Stomoniakov. We have not seen the decision itself, so the link to this order rests on subject matter. The closing prodslid is prod. sled., the "continuation follows" formula Tiltman quotes from the system he broke on another link.

04 What remains uncertain

The continuation has its own kind of neighbour: another message in this system, with its own key and its own page. The continuation itself is decoded but does not yet form sentences, so it has no page. The figure traffic in the same file, a different cipher, is not solved.

Full texts

The transcription and the decryption of every document on this page, so that the reading can be used and checked. Short files are shown here; all are in the repository.

Nr 1883/1188/S, 1 June 1921

A buying order to Stomoniakov in Berlin: hardware for the goods-exchange fund with the countryside, listed with sizes (iron, nails, shovels, rakes, forks, axes, saws, chisels). It ends "continuation follows". The goods-exchange subject fits the Politburo decision on Kopp's proposal of 16 April 1921, by subject only.

Transcription

msgA.txt

KNZOK NISL? TFPPO PLIUV IEADL UGMIZ ZVPRK AMNUR HREMZ APEST
OLDDL VOOSC TNROD TVOTO SAMAD OIOAD ONVOO ATTRA PASNL EIITI PUNOE
PCCVO NWGTE VTYVP TVMCE MOUZL EEAEL EHJCI KZGOM OVTRO DIIMG OIBEO
OIETN IQIIC TYISI ZHORP SEHSJ EPONA DDIIY TICSK DPRIT ERAIK TVEIE
AAENL ZOLPH MSTNT OKNOO AODIO OVLOA ISNET AITTT KZLIF NNSIN DEAZV
IMEYC RNSID VIIDD RNUOO IMDNT RYOPR OOEOE OYAGR WCQE? OHVHR OUSOL
OOEET OITKE YPOEO HPOKL DAOVO H???A TDOEE UOOOI HHUVI CNQDI VPIEY
ZQHDE CGPWE AEOYU RIIVH OIPOY CIOAT SNUIB BTINC GCHAI ENILN RRPIK
OSHLT AENDO CIOED HNTAA VPNDY DLIOP DNMII RIOOR TSEVA VFPSO ILROD
OTVOV DHDEM EEEQB TAIOI ELBMU OIDET NODVP AQTNZ NEUOH LUOTT IDIRN
RPOMN ZECOA RZDVI QNVOU DAOND OLVLD MONUT DLION JESLE LETDN OKEGO
ZOBII AUDND DHILE IIPVO
Decryption

decryption.txt

dliatkwaroobcennogofonda
derevneineobqhodimonemed
lennozakupiteskobianoito
vardvoetochi?jelezoshinn
oepodkovochnoegvozdiprov
olochnyeivuchpolovinoido
semidiuimovgvozdipodkovo
chnoesrednichnomeroelopa
tjzemlianwchrabotkvadrat
ncede?iatgnaodinnalzatqt
richetvertqiudiuimovostr
okonefhnyedesiatqnaivena
dzatqpolovinoiudiuimovzp
tgrabpizptvilydlirsehana
vozatoporyplotnichny?ves
omdvapolovinoidotrec?fun
tovpilypoperecdnyetr?pol
ovinoichetyreshjimanashe
stqdiuimovzptkieszistoli
arnyevosemqiodlsiatidiui
movdliatochkipelzptdolot
adolbetnyedotriehetverti
diuimastameskiiloskieotp
oidoudnogochetpertziudiu
imapolukruglyevtpoldoodn
ogodiuinwzptprodslid
Reading

reading.txt

для т[о]в[а]рооб[м]енного фонда деревней необходимо немедленно закупите скобяной товар двоеточие
железо шинное подковочное
гвозди проволочные [от] двух [с] половиной до семи дюймов
гвозди подковочные средних номеров
лопаты земляных работ квадратные де?ять на одиннадцать три четверти дюймов
остроконечные десять на [о]диннадцать [с] половиною дюймов зпт
грабли зпт вилы для сена [и] навоза
топоры плотничные весом два [с] половиной до трех фунтов
пилы поперечные три [с] половиной четыре [...] на шесть дюймов зпт
клещи столярные восемь и десяти дюймов
для точки пил зпт
долота долбежные до трех четвертей дюйма
стамески плоские от по[л] до одного [и] четверти дюйма
полукруглые от пол до одного дюйма зпт
прод след
Translation

translation.md

For the goods-exchange fund with the countryside it is necessary to buy immediately hardware, colon:
tyre iron, horseshoe iron;
wire nails from two and a half to seven inches;
horseshoe nails of middle sizes;
shovels for earthwork, square, nine [or ten] by eleven and three-quarter inches,
pointed, ten by eleven and a half inches;
rakes; forks for hay and manure;
carpenters' axes weighing two and a half to three pounds;
cross-cut saws, three and a half, four [...] by six inches;
joiners' pincers of eight and ten inches;
for sharpening saws;
mortise chisels up to three-quarters of an inch;
flat paring chisels from a half to one and a quarter inches;
half-round from a half to one inch.
Continuation follows.

Key: keyA3.json

05 Sources

Transcription, key and reading: targets/voikov1921/; solver: targets/stomoniakov1921/.