From 4862c2cf3eafdb6fa017a4e86a6fad8b4fc64171 Mon Sep 17 00:00:00 2001
From: Andrew Guschin <guschin.drew@gmail.com>
Date: Sun, 13 Nov 2022 11:50:28 +0400
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---
 lab2/src/compute_window.rs | 62 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 lab2/src/compute_window.rs

(limited to 'lab2/src/compute_window.rs')

diff --git a/lab2/src/compute_window.rs b/lab2/src/compute_window.rs
new file mode 100644
index 0000000..6a9a7e8
--- /dev/null
+++ b/lab2/src/compute_window.rs
@@ -0,0 +1,62 @@
+use crate::utils::powmod;
+use crate::window_state::WindowState;
+use eframe::egui;
+
+pub struct Window {
+    e: u64,
+    k: u64,
+    phi: u64,
+    closed: Option<u64>,
+    error: Option<String>,
+}
+
+impl Default for Window {
+    fn default() -> Self {
+        Self {
+            e: 0,
+            k: 0,
+            phi: 0,
+            closed: None,
+            error: None,
+        }
+    }
+}
+
+impl Window {
+    fn compute(&mut self) {
+        self.closed = Some(powmod(self.e, self.k - 1, self.phi));
+    }
+}
+
+impl WindowState for Window {
+    fn get_name(&self) -> &str {
+        "Вычисление секретной экспоненты"
+    }
+
+    fn update(&mut self, ui: &mut egui::Ui) {
+        ui.label("Открытая экспонента e:");
+        let resp1 = ui.add(egui::DragValue::new(&mut self.e));
+        ui.label("Модуль phi(e):");
+        let resp2 = ui.add(egui::DragValue::new(&mut self.phi).clamp_range(1..=u64::MAX));
+        ui.label("Порядок k элемента e по модулю phi(n):");
+        let resp3 = ui.add(egui::DragValue::new(&mut self.k).clamp_range(1..=u64::MAX));
+        if resp1.changed() || resp2.changed() || resp3.changed() {
+            self.closed = None;
+            self.error = None;
+        }
+
+        if ui.button("Вычислить секретную экспоненту d").clicked() {
+            self.compute();
+        }
+
+        if let Some(d) = &self.closed {
+            let mut tmp = d.to_string();
+            ui.label("Секретная экспонента d:");
+            ui.add_enabled(false, egui::TextEdit::singleline(&mut tmp));
+        }
+
+        if let Some(err) = &self.error {
+            ui.label(err);
+        }
+    }
+}
-- 
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