Deciphering the transmissions

There are several encryptions used in the Transmissions. The encryption used is mentioned at the beginning of the transmission. CHARLIE ONE UMBRA CHARLIE ONE UMBRA URGENT URGENT BRAVO

BRAVO refers to the encryption.

Numbers to letters
To begin, you have to translate the numbers to letters. PASSTYPE BRAVO 00 01 02 03 04 05 06 07 08 09 At the beginning of a transmission would refer to A=0

See Tools for help with substitution.

Alpha
Enumeration, sometimes with offset like Caesar cipher (1st century BC or older)

Alpha Tango
Atbash (6th or 7th century BC or older)

Bravo
Variant Beaufort

The "variant Beaufort" cipher should not be confused with the "Beaufort" cipher. In variant Beaufort, encryption is performed by performing the decryption step of the standard Vigenère cipher, and likewise decryption is performed by using Vigenère encryption.

Papa
Playfair (1854 AD)

Whiskey
Code Wheel / Substitution Cipher

The Transmissions using the Whiskey encryption give you a number with the encryption. 24 WHISKEY So you would have to turn the wheel from the picture until A=24

Use This to substitute numbers to the letters with the substitution wheel found on the USB drive from Transmission 32. Set up the specific number or try all the possible combinations if no number is given. You should end up with another encrypted message which gives you the type you have to continue with: A WHISKEY TYPE BRAVO

8 i-ro-ha Alphabet?
Intercepted EN trans

Tools used
Link to Category Tools