1 / 3

200 likes | 1.21k Vues

Transposition Ciphers. Reference Matt Bishop, Computer Security , Addison Wesley, 2003. Transposition Ciphers (p.2). A transposition cipher rearranges the plaintext to form the ciphertext. There is no substitution of characters. The key of the transposition cipher is a permutation function.

Télécharger la présentation
## Transposition Ciphers

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**Transposition Ciphers**• Reference • Matt Bishop, Computer Security, Addison Wesley, 2003.**Transposition Ciphers (p.2)**• A transposition cipher rearranges the plaintext to form the ciphertext. • There is no substitution of characters. • The key of the transposition cipher is a permutation function.**Transposition Ciphers (p.3)**• A simple example is the “rail fence” cipher. • Let M be a sequence such as “HELLO, WORLD”. • Ignore spaces and punctuation, and rewrite the string into two rows: • HLOOL • ELWRD • The ciphertext C becomes “HLOOLELWRD”

More Related