Deutsch (DE-CH-AT)English (United Kingdom)
 
 
 
 
 
   


 

PDF Print

Beaufort Cipher

 

Background

The cipher was developed by the Briton Sir Francis Beaufort (* 1774; † 1857). He is also known for his development of the Beaufort scale, which is used to measure the wind force.

 

Principle

The Beaufort cipher works almost identical to the Vigenère cipher, but the sequence of the used alphabets is reversed:

beaufort-key

Fig. 1: Beaufort substitution matrix1

 

Security

Since only the order of characters in the alphabets has been changed, the security of this cipher is identical to that of the Vigenère cipher.

 

Weblinks

http://en.wikipedia.org/wiki/Beaufort_cipher

 

References

1 Kryptographiespielplatz

 

 

 
   
     
 
 
Copyright © 1998 - 2016 CrypTool Project / Contributors