RED ARMY RADIOTELEGRAPH SIMULATOR


= OTP - One Time Pad =





OVERVIEW

OTP - One Time Pad was used from long time and still, even today, such radiogram is unbreakable if encoded properly!
During 2WW only Red Army Supreme Staff and diplomacy used OTPs and their messages were never broken both by Nazis and the Capitalists.
Contrary to this lower echelons very seldom used OTPs. Please remember, it was very difficult at that time to produce such cryptomaterials,
there was no computers at that time. First OTPs produced in mechanical way on IBM machines werent perfect and were broken, it is very difficult to produce perfect, random noise.



OTP ENCODING PROCEDURE


Assume we are using KEY00498.TXT

STEP1: T H I S I S T E S T M E S S A G E
STEP2: T H I S X I S X T E S T X M E S S A G E
STEP3: E Y O H S K I E T V D Q C Q L U T I S W
STEP4: E Y O H S K I E T V D Q C Q L U T I S W
STEP5: x x x x x E Y O H S K I E T V D Q C Q L U T I S W


      where xxxxx is key number (00498) encoded by simple substitusion A=1, B=2 ... Z=6

      At the end we have:

      JTDSH EYOHS KIETV DQCQL UTISW

      and this can be sent via radio. Spies at the field rarely bothered to create proper PBL for such MSG, it was just sent after BT signal.
      If messages were numbered it was encoded inside crypto, becuse it was important information how active such radiostation was, sometimes
      false number was sent in the clear, while real was encoded inside message (SOE, polish spies in France).




OTPs designated for usage in RARS, not all are used at the moment:


KEY00498
KEY05731
KEY10286
KEY18790
KEY20271
KEY22370
KEY26875
KEY32099
KEY32146
KEY41625
KEY42383
KEY47684
KEY56554
KEY59935
KEY64333
KEY74737
KEY74847
KEY84678
KEY87390
KEY90373




One message in RARS is already encoded by OTP means, but I planning to find some real historical spy related stuff and put more such traffic on the air.



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