Reply To: What is a Porta cipher?
The Empty Vault › Forums › Bureau of Security and Signals Intelligence Forum › What is a Porta cipher? › Reply To: What is a Porta cipher?
11th December 2022 at 5:50 pm #87535
OK, well, if you make a Q4 with these alphabet keys
and translate the shift key according to this table,
then encryption and decryption are the same as the Porta.
Porta, American Porta, British Q4 A,B A,B N C,D Y,Z O E,F W,X P G,H U,V Q I,J S,T R K,L Q,R S M,N O,P T O,P M,N U Q,R K,L V S,T I,J W U,V G,H X W,X E,F Y Y,Z C,D Z