Skip to content

Cryptanalysis of 19th century enciphered telegrams from Brazil

Notifications You must be signed in to change notification settings

doranchak/brazilian-telegram-ciphers

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

7 Commits
 
 
 
 

Repository files navigation

brazilian-telegram-ciphers

Cryptanalysis of 19th century enciphered telegrams from Brazil.

These were sent to me by a student at Federal University of Santa Catarina in Brazil, researching telegrams exchanged between authorities in a period of State arbitration in Brazil. He found encrypted documents in the process. They were written in Portuguese in 1894.

There are two ciphers. The first is a simple substitution cipher. It resembles an Atbash cipher where A=Z, B=Y, C=X, etc. The second was found to be a simple columnar transposition.

The author of the second message evidently is asking for the postponement of the regional elections to the president of the republic due to the difficulties in the municipalities of the state.

About

Cryptanalysis of 19th century enciphered telegrams from Brazil

Resources

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages