STRLCPY/100-redteam-projects

[7] ROT13 Cipher - <JAVA> | AugustoSavi
augusto.savi committed 2 years ago

c5f0860b

1 parent bb12e019

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Projects/7_ROT13_Cipher/.gitignore

1	+	/target/
2	+	!.mvn/wrapper/maven-wrapper.jar
3	+
4	+	### STS ###
5	+	.apt_generated
6	+	.classpath
7	+	.factorypath
8	+	.project
9	+	.settings
10	+	.springBeans
11	+	.sts4-cache
12	+
13	+	### IntelliJ IDEA ###
14	+	.idea
15	+	*.iws
16	+	*.iml
17	+	*.ipr
18	+	/out/
19	+
20	+	### NetBeans ###
21	+	/nbproject/private/
22	+	/build/
23	+	/nbbuild/
24	+	/dist/
25	+	/nbdist/
26	+	/.nb-gradle/
27	+
28	+	*.xml.versionsBackup

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Projects/7_ROT13_Cipher/README.md

1	+	<h1 align="center">ROT13 Cipher tool</h1>
2	+
3	+	## :information_source: technologies used
4	+
5	+	* Java
6	+
7	+	<h2 align="center"> Encrypt </h2>
8	+
9	+	![image](https://user-images.githubusercontent.com/32443720/161871552-8069d2bb-5401-47d3-8540-8ef7a8109c96.png)
10	+
11	+
12	+	<h2 align="center"> Decrypt </h2>
13	+
14	+	![image](https://user-images.githubusercontent.com/32443720/161871561-16ca9506-19e2-49c4-9b81-183ec77a917c.png)
15	+
16	+
17	+	```java
18	+	private void cipherDecipher(String message, int offset){
19	+	StringBuilder sb = new StringBuilder();
20	+	for (int i = 0; i < message.length(); i++) {
21	+	char c = message.charAt(i);
22	+	if (c >= 'a' && c <= 'm') c += offset;
23	+	else if (c >= 'A' && c <= 'M') c += offset;
24	+	else if (c >= 'n' && c <= 'z') c -= offset;
25	+	else if (c >= 'N' && c <= 'Z') c -= offset;
26	+	sb.append(c);
27	+	}
28	+	textAreaOutput.setText(sb.toString());
29	+	}
30	+	```
31	+
32	+	## :books: References
33	+
34	+	https://stackoverflow.com/questions/25537465/rot13-decode-in-java
35	+
36	+	https://en.wikipedia.org/wiki/ROT13

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Projects/7_ROT13_Cipher/src/Main.java

1	+	import javax.swing.*;
2	+	import javax.swing.border.EmptyBorder;
3	+	import javax.swing.event.DocumentEvent;
4	+	import javax.swing.event.DocumentListener;
5	+	import javax.swing.text.BadLocationException;
6	+
7	+	public class Main extends JFrame {
8	+	private final JTextArea textAreaOutput;
9	+	private final int offset = 13;
10	+	private String message = "";
11	+
12	+	public Main() {
13	+	JPanel contentPane = new JPanel();
14	+	setTitle("ROT13 Cipher tool");
15	+	setResizable(false);
16	+	setBounds(100, 100, 800, 600);
17	+	contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
18	+	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
19	+	setContentPane(contentPane);
20	+	contentPane.setLayout(null);
21	+
22	+	//input
23	+	JLabel labelInput = new JLabel("Input:");
24	+	labelInput.setBounds(10, 0, 146, 29);
25	+	contentPane.add(labelInput);
26	+
27	+	JScrollPane scrollPaneInput = new JScrollPane();
28	+	scrollPaneInput.setEnabled(false);
29	+	scrollPaneInput.setBounds(10, 30, 780, 250);
30	+
31	+	JTextArea textAreaInput = new JTextArea();
32	+	textAreaInput.getDocument().addDocumentListener(new DocumentListener() {
33	+	@Override
34	+	public void insertUpdate(DocumentEvent documentEvent) {
35	+	try {
36	+	message = documentEvent.getDocument().getText(0, documentEvent.getDocument().getLength());
37	+	cipherDecipher(message,offset);
38	+	} catch (BadLocationException e) {
39	+	e.printStackTrace();
40	+	}
41	+	}
42	+
43	+	@Override
44	+	public void removeUpdate(DocumentEvent documentEvent) {
45	+	try {
46	+	message = documentEvent.getDocument().getText(0, documentEvent.getDocument().getLength());
47	+	cipherDecipher(message,offset);
48	+	} catch (BadLocationException e) {
49	+	e.printStackTrace();
50	+	}
51	+
52	+	}
53	+
54	+	@Override
55	+	public void changedUpdate(DocumentEvent documentEvent) {
56	+	try {
57	+	message = documentEvent.getDocument().getText(0, documentEvent.getDocument().getLength());
58	+	cipherDecipher(message,offset);
59	+	} catch (BadLocationException e) {
60	+	e.printStackTrace();
61	+	}
62	+
63	+	}
64	+	});
65	+	scrollPaneInput.setViewportView(textAreaInput);
66	+	contentPane.add(scrollPaneInput);
67	+
68	+	//output
69	+	JLabel labelOutput = new JLabel("Output:");
70	+	labelOutput.setBounds(10, 275, 146, 29);
71	+
72	+	JScrollPane scrollPaneOutput = new JScrollPane();
73	+	scrollPaneOutput.setEnabled(false);
74	+	scrollPaneOutput.setBounds(10, 300, 780, 250);
75	+
76	+	textAreaOutput = new JTextArea();
77	+	scrollPaneOutput.setViewportView(textAreaOutput);
78	+
79	+	contentPane.add(labelOutput);
80	+	contentPane.add(scrollPaneOutput);
81	+	scrollPaneOutput.setViewportView(textAreaOutput);
82	+	}
83	+
84	+	private void cipherDecipher(String message, int offset){
85	+	StringBuilder sb = new StringBuilder();
86	+	for (int i = 0; i < message.length(); i++) {
87	+	char c = message.charAt(i);
88	+	if (c >= 'a' && c <= 'm') c += offset;
89	+	else if (c >= 'A' && c <= 'M') c += offset;
90	+	else if (c >= 'n' && c <= 'z') c -= offset;
91	+	else if (c >= 'N' && c <= 'Z') c -= offset;
92	+	sb.append(c);
93	+	}
94	+	textAreaOutput.setText(sb.toString());
95	+	}
96	+
97	+	public static void main(String[] args){
98	+	Main main = new Main();
99	+	main.setVisible(true);
100	+	}
101	+	}
102	+

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README.md

		skipped 37 lines
38	38		[4] \| Server for file transfers \| :heavy_check_mark:
39	39		[5] \| Caesar Cipher tool \| :heavy_check_mark:
40	40		[6] \| TCP chat server -> The messages should be encoded with Caesar Cipher \| :x:
41		-	[7] \| ROT13 Cipher \| :x:
	41	+	[7] \| ROT13 Cipher \| :heavy_check_mark:
42	42		[8] \| UDP Chat server -> The messages should be encoded with ROT13 Cipher \| :x:
43	43		[9] \| Remote command execution \| :x:
44	44		[10] \| Recreate the Netcat tool \| :x:
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[7] ROT13 Cipher - <JAVA> | AugustoSavi