The Path of a Message
How did an enemy message get to Bletchley Park and what happened once it was here?
Intercept - Y Stations
Enemy messages were obtained by the ‘Y’ Service, a chain of wireless intercept stations across Britain and in a number of countries overseas.
Decryption
After interception, the encrypted messages were taken down on paper and sent to Bletchley Park by motorcycle or teleprinter
Analysis
Bletchley Park did not just decrypt messages, the contents had to be analysed
Dissemination
The final step in the codebreaking process was to send the resulting top secret intelligence to the relevant people
Intercept - Y Stations
Enemy messages were obtained by the ‘Y’ Service, a chain of wireless intercept stations across Britain and in a number of countries overseas.
Analysis
Bletchley Park did not just decrypt messages, the contents had to be analysed
Decryption
After interception, the encrypted messages were taken down on paper and sent to Bletchley Park by motorcycle or teleprinter
Dissemination
The final step in the codebreaking process was to send the resulting top secret intelligence to the relevant people