- cryptanalist
- decifrador de criptogramas
English-Portuguese dictionary of military terminology. 2014.
English-Portuguese dictionary of military terminology. 2014.
Book cipher — A book cipher is a cipher in which the key is some aspect of a book or other piece of text; books being common and widely available in modern times, users of book ciphers take the position that the details of the key is sufficiently well hidden… … Wikipedia