What is a Book Cipher?
With the book cipher, the text to be encoded is replaced character by character or word by word with digits. The digits are to be considered as coordinates, i.e. they stand for the number of the paragraph, line, word or letter, depending on the text length.
Decrypt
After entering the key text, selecting the modes and selecting the output format, the decryption of the entered key takes place automatically.
Here the two modes Position (e.g. 1.1.1 1.2.1 1.2.2) or the search for a specific word can be selected as the key.
In advanced mode, various characters such as umlauts or spaces can be excluded. When blank lines are excluded, the encoded text is counted as one paragraph.
Mode positions
The following options are available as position formats:
- paragraph, line, word
- paragraph, character
- line, word
- word
- paragraph, line, word, character
- line, word, character
- line, character
- word, character
- character
Mode word
The following options are available as output format:
- Paragraph, Line, Word
- Line, Word
- Word
Encrypt
After entering the key text, selecting the modes and selecting the output format, the encryption of the entered target text takes place automatically.
In the extended mode, various characters such as umlauts or spaces can be excluded. When blank lines are excluded, the encoded text is counted as one paragraph.
The following options are available as output format:
- section, line, word, character
- line, word, character
- word, character
- character