C#編寫的MD5、AES等算法的加密解密

1、鄭州輕工業(yè)學(xué)院本科實(shí)驗(yàn)報(bào)告設(shè)計(jì)題目： 數(shù)據(jù)加密解密 學(xué)生姓名： 李鎮(zhèn)宇 系 別： 計(jì)算機(jī)與通信工程學(xué)院 專 業(yè)： 網(wǎng)絡(luò)運(yùn)維與安全 班 級(jí)： 13-01 學(xué) 號(hào)： 541307110121 指導(dǎo)教師： 吉星、程立輝 2016 年 4 月 12 日目錄1目的32實(shí)驗(yàn)內(nèi)容33實(shí)驗(yàn)步驟43.1 Form窗體43.2 AES窗體73.3 DES窗體83.4 MD5窗體103.5 RC2窗體113.6 RSA窗體133.7 Triple DES窗體154實(shí)驗(yàn)結(jié)果174.1 MD5加密、及其異常措施174.2 DES加密解密、及其異常措施184.3 TripleDES加密解密、及其異常措施204.4 RC2

2、加密解密、及其異常措施224.5 AES加密解密、及其異常措施244.6 RSA加密解密、及其異常措施261 目的數(shù)據(jù)加密技術(shù)是網(wǎng)絡(luò)中最基本的安全技術(shù)，主要是通過對(duì)網(wǎng)絡(luò)中傳輸?shù)男畔⑦M(jìn)行數(shù)據(jù)加密來保障其安全性，這是一種主動(dòng)安全防御策略，用很小的代價(jià)即可為信息提供相當(dāng)大的安全保護(hù)。2 實(shí)驗(yàn)內(nèi)容系統(tǒng)基本功能描述如下：1、 實(shí)現(xiàn)DES算法加密與解密功能。2、 實(shí)現(xiàn)TripleDES算法加密與解密功能。3、 實(shí)現(xiàn)MD5算法加密功能。4、 實(shí)現(xiàn)RC2算法加密與解密功能。5、 實(shí)現(xiàn)TripleDES算法加密與解密功能。6、 實(shí)現(xiàn)RSA算法加密與解密功能。3 實(shí)驗(yàn)步驟3.1 Form窗體六個(gè)菜單欄：MD5加密

3、，DES加密解密，Triple DES加密解密，RC2加密解密，AES加密解密，RSA加密解密，分別對(duì)應(yīng)相應(yīng)的算法。代碼：using System.Text;using System.Windows.Forms;using System.IO;using System.Security.Cryptography;namespace _21_Li public partial class 數(shù)據(jù)加密解密 : Form public 數(shù)據(jù)加密解密() InitializeComponent(); private void dES加密ToolStripMenuItem_Click(object sen

4、der, EventArgs e) DES des = new DES(); des.MdiParent = this; des.Show(); private void rSA加密解密ToolStripMenuItem_Click(object sender, EventArgs e) RSA rsa = new RSA(); rsa.MdiParent = this; rsa.Show(); private void mD5加密ToolStripMenuItem_Click(object sender, EventArgs e) MD5 md5 = new MD5(); md5.MdiPa

5、rent = this; md5.Show(); private void tripleDES加密解密ToolStripMenuItem_Click(object sender, EventArgs e) TripleDES tripdes = new TripleDES(); tripdes.MdiParent = this; tripdes.Show(); private void rC2加密解密ToolStripMenuItem_Click(object sender, EventArgs e) RC2 rc2 = new RC2(); rc2.MdiParent = this; rc2

6、.Show(); private void aES加密解密ToolStripMenuItem_Click(object sender, EventArgs e) AES aes = new AES(); aes.MdiParent = this; aes.Show(); 3.2 AES窗體控件：四個(gè)Lable，四個(gè)Textbox，兩個(gè)Button關(guān)鍵代碼：private void button1_Click(object sender, EventArgs e) try textBox3.Text = Security.AESEncrypt(textBox1.Text, textBox2.Te

7、xt); catch (Exception ex) MessageBox.Show(ex.Message); private void button2_Click(object sender, EventArgs e) try textBox4.Text = Security.AESDecrypt(textBox3.Text, textBox2.Text); catch (Exception ex) MessageBox.Show(ex.Message); 3.3 DES窗體控件：四個(gè)Lable，四個(gè)Textbox，兩個(gè)Button關(guān)鍵代碼：private void button1_Click

8、(object sender, EventArgs e)/加密 try keyDES = textBox2.Text; encryptedData = textBox1.Text;/明文 textBox3.Text = Security.DESEncrypt(encryptedData, keyDES); catch (Exception ex) MessageBox.Show(ex.Message); private void button2_Click(object sender, EventArgs e)/解密 try keyDES = textBox2.Text; decryptedD

9、ata = textBox3.Text; textBox4.Text = Security.DESDecrypt(decryptedData, keyDES); catch(Exception ex) MessageBox.Show(ex.Message); 3.4 MD5窗體控件：兩個(gè)Lable，兩個(gè)Textbox，一個(gè)Button關(guān)鍵代碼：string encryptedData;/明文, string decryptedData;/密文 private void button1_Click(object sender, EventArgs e) try encryptedData = t

10、extBox1.Text; decryptedData = Security.MD5Encrypt(encryptedData); textBox2.Text = decryptedData; catch (Exception ex) MessageBox.Show(ex.Message); 3.5 RC2窗體控件：四個(gè)Lable，四個(gè)Textbox，兩個(gè)Button關(guān)鍵代碼：private void button1_Click(object sender, EventArgs e)/加密 try textBox3.Text = Security.RC2Encrypt(textBox1.Tex

11、t, textBox2.Text); catch (Exception ex) MessageBox.Show(ex.Message); private void button2_Click(object sender, EventArgs e)/解密 try textBox4.Text = Security.RC2Decrypt(textBox3.Text, textBox2.Text); catch (Exception ex) MessageBox.Show(ex.Message); 3.6 RSA窗體控件：四個(gè)Lable，四個(gè)Textbox，三個(gè)Button關(guān)鍵代碼：RSACrypto

12、ServiceProvider rsa; byte Data; byte encryptedData;/密文 byte decryptedData; private void button1_Click_1(object sender, EventArgs e) /產(chǎn)生RSA密鑰 rsa = new RSACryptoServiceProvider(); textBox4.Text = rsa.ToXmlString(false); private void button2_Click_1(object sender, EventArgs e) /RSA加密 try Data = Encodi

13、ng.UTF8.GetBytes(textBox1.Text); encryptedData = rsa.Encrypt(Data, false); textBox2.Text = Encoding.UTF8.GetString(encryptedData); catch (Exception ex) MessageBox.Show(ex.Message); private void button3_Click_1(object sender, EventArgs e) /RSA解密 try decryptedData = rsa.Decrypt(encryptedData, false);

14、textBox3.Text = Encoding.UTF8.GetString(decryptedData); catch (Exception ex) MessageBox.Show(ex.Message); 3.7 Triple DES窗體控件：四個(gè)Lable，六個(gè)Textbox，兩個(gè)Button關(guān)鍵代碼：string m_strEncrypt, m_strDecrypt; private void button1_Click(object sender, EventArgs e)/加密 try m_strEncrypt = Security.DESEncrypt(textBox1.Tex

15、t, textBox2.Text); m_strEncrypt = Security.DESEncrypt(m_strEncrypt, textBox3.Text); textBox5.Text = Security.DESEncrypt(m_strEncrypt, textBox4.Text); catch (Exception ex) MessageBox.Show(ex.Message); private void button2_Click(object sender, EventArgs e)/解密 try m_strDecrypt = Security.DESDecrypt(tex

16、tBox5.Text, textBox4.Text); m_strDecrypt = Security.DESDecrypt(m_strDecrypt, textBox3.Text); m_strDecrypt = Security.DESDecrypt(m_strDecrypt, textBox2.Text); textBox6.Text = m_strDecrypt; catch (Exception ex) MessageBox.Show(ex.Message); 4 實(shí)驗(yàn)結(jié)果4.1 MD5加密、及其異常措施加密時(shí)沒有輸入被加密信息，拋出異常提示：4.2 DES加密解密、及其異常措施加密時(shí)沒有輸入被加密信息，拋出異常提示：加密時(shí)沒有輸入密鑰，拋出異常提示：輸入密鑰長(zhǎng)度不符合要求，拋