Struct PlainTextDetector

pub struct PlainTextDetector {}

Implementations

impl PlainTextDetector

pub fn new() -> Self

pub fn is_plain_text( self, plain_or_cipher_text: String, languages: Vec<Language>, minimum_confidence_value: f64, ) -> bool

Detect if plain text if the text correspond to a set of specified know languages.

The presumed plain text is passed as argument. The minimum_confidence_value variable is 1 if we are sure that any word exactly correspond to the corresponding language. The minimum_confidence_value is 0 if we are sure it does not correspond to the corresponding language at all. Return true if it is plain text. Else return false.

use lingua::Language::*;
use lingua::Language;
use cryptatools_core::cryptanalysis::plain_text_detector::PlainTextDetector;
let mut ptd: PlainTextDetector = PlainTextDetector::new();
let text: String = String::from("The ennemies will attack at midnight!");
let is_plain_text = ptd.is_plain_text(text, vec![], 0.0);
assert_eq!(is_plain_text, true);

use lingua::Language::*;
use lingua::Language;
use cryptatools_core::cryptanalysis::plain_text_detector::PlainTextDetector;
let mut ptd: PlainTextDetector = PlainTextDetector::new();
let text: String = String::from("d0n0mIn0thing");
let is_plain_text = ptd.is_plain_text(text, vec![lingua::Language::English, lingua::Language::French], 8.0);
assert_eq!(is_plain_text, false);

pub fn catch_confidence_values( self, plain_or_cipher_text: String, languages: Vec<Language>, ) -> Option<Vec<(Language, f64)>>

For each languages set, return a tuple with confidence value.

The confidence value is a value attributed to a text and a language. More the text corresponds to the corresponding language, more the confidence value will be hight.

use lingua::Language::*;
use lingua::Language;
use cryptatools_core::cryptanalysis::plain_text_detector::PlainTextDetector;
let mut ptd: PlainTextDetector = PlainTextDetector::new();
let text: String = String::from("The ennemies will attack at midnight!");
let is_plain_text = ptd.is_plain_text(text, vec![lingua::Language::English, lingua::Language::French], 0.0);
assert_eq!(is_plain_text, true);

pub fn detect_language( self, plain_or_cipher_text: String, languages: Vec<Language>, ) -> Option<Language>

Detect the language used in a plain text using the confidence value algorithm.

use lingua::Language::*;
use lingua::Language;
use cryptatools_core::cryptanalysis::plain_text_detector::PlainTextDetector;
let mut ptd: PlainTextDetector = PlainTextDetector::new();
let text: String = String::from("languages are awesome");
let detected_language: Option<Language> = ptd.detect_language(text, vec![]);
assert_eq!(detected_language, Some(English));

use lingua::Language::*;
use lingua::Language;
use cryptatools_core::cryptanalysis::plain_text_detector::PlainTextDetector;
let mut ptd: PlainTextDetector = PlainTextDetector::new();
let text: String = String::from("languages are awesome");
let detected_language: Option<Language> = ptd.detect_language(text, vec![lingua::Language::English, lingua::Language::French]);
assert_eq!(detected_language, Some(English));