whats the problem in the running? rsa code

rooholah heydari

10y1.3k

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Security.Cryptography;
namespace RSAEncryption
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
#region-----Encryptionand Decryption Function-----
static public byte[] Encryption(byte[] Data, RSAParameters RSAKey, bool DoOAEPPadding)
{
try
{
byte[] encryptedData;
using (RSACryptoServiceProvider RSA = new RSACryptoServiceProvider())
{
RSA.ImportParameters(RSAKey);
encryptedData = RSA.Encrypt(Data, DoOAEPPadding);
}
return encryptedData;
}
catch (CryptographicException e)
{
Console.WriteLine(e.Message);
return null;
}
}
static public byte[] Decryption(byte[] Data, RSAParameters RSAKey, bool DoOAEPPadding)
{
try
{
byte[] decryptedData;
using (RSACryptoServiceProvider RSA = new RSACryptoServiceProvider())
{
RSA.ImportParameters(RSAKey);
decryptedData = RSA.Decrypt(Data, DoOAEPPadding);
}
return decryptedData;
}
catch (CryptographicException e)
{
Console.WriteLine(e.ToString());
return null;
}
}
#endregion
#region--variables area
UnicodeEncoding ByteConverter = new UnicodeEncoding();
RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
byte[] plaintext;
byte[] encryptedtext;
#endregion
#region-- Function Implemantation
private void button1_Click(object sender, EventArgs e)
{
plaintext = ByteConverter.GetBytes(txtplain.Text);
encryptedtext = Encryption(plaintext, RSA.ExportParameters(false), false);
txtencrypt.Text = ByteConverter.GetString(encryptedtext);
}
private void button2_Click(object sender, EventArgs e)
{
byte[] decryptedtex = Decryption(encryptedtext, RSA.ExportParameters(true), false);
txtdecrypt.Text = ByteConverter.GetString(decryptedtex);
}
#endregion
}
}

Error 1 The type or namespace name 'Form1' could not be found (are you missing a using directive or an assembly reference?) E:\asli\WindowsFormsApplication1\WindowsFormsApplication1\Program.cs 18 33 WindowsFormsApplication1

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Suresh M10y ago
Accepted answer
Share your code
rooholah heydari10y ago
i dont know how send u my code file!!..
rooholah heydari10y ago
1. #thiscodeisinform1.designer.cs
4. namespaceusingRSAEncryption
5. {
6. partialclassForm1
7. {
8. ///
9. ///Requireddesignervariable.
10. ///
11. privateSystem.ComponentModel.IContainercomponents=null;
13. ///
14. ///Cleanupanyresourcesbeingused.
15. ///
16. ///trueifmanagedresourcesshouldbedisposed;otherwise,false.
17. protectedoverridevoidDispose(booldisposing)
18. {
19. if(disposing&&(components!=null))
20. {
21. components.Dispose();
22. }
23. base.Dispose(disposing);
24. }
26. #regionWindowsFormDesignergeneratedcode
28. ///
29. ///RequiredmethodforDesignersupport-donotmodify
30. ///thecontentsofthismethodwiththecodeeditor.
31. ///
32. privatevoidInitializeComponent()
33. {
34. this.button1=newSystem.Windows.Forms.Button();
35. this.txtplain=newSystem.Windows.Forms.TextBox();
36. this.txtencrypt=newSystem.Windows.Forms.TextBox();
37. this.txtdecrypt=newSystem.Windows.Forms.TextBox();
38. this.button2=newSystem.Windows.Forms.Button();
39. this.SuspendLayout();
40. //
41. //button1
42. //
43. this.button1.Location=newSystem.Drawing.Point(177,13);
44. this.button1.Name="button1";
45. this.button1.Size=newSystem.Drawing.Size(75,23);
46. this.button1.TabIndex=0;
47. this.button1.Text="encrypt";
48. this.button1.UseVisualStyleBackColor=true;
49. //
50. //txtplain
51. //
52. this.txtplain.Location=newSystem.Drawing.Point(12,15);
53. this.txtplain.Name="txtplain";
54. this.txtplain.Size=newSystem.Drawing.Size(100,20);
55. this.txtplain.TabIndex=1;
56. //
57. //txtencrypt
58. //
59. this.txtencrypt.Location=newSystem.Drawing.Point(12,62);
60. this.txtencrypt.Name="txtencrypt";
61. this.txtencrypt.Size=newSystem.Drawing.Size(100,20);
62. this.txtencrypt.TabIndex=2;
63. //
64. //txtdecrypt
65. //
66. this.txtdecrypt.Location=newSystem.Drawing.Point(70,176);
67. this.txtdecrypt.Name="txtdecrypt";
68. this.txtdecrypt.Size=newSystem.Drawing.Size(100,20);
69. this.txtdecrypt.TabIndex=3;
70. //
71. //button2
72. //
73. this.button2.Location=newSystem.Drawing.Point(177,59);
74. this.button2.Name="button2";
75. this.button2.Size=newSystem.Drawing.Size(75,23);
76. this.button2.TabIndex=4;
77. this.button2.Text="decrypt";
78. this.button2.UseVisualStyleBackColor=true;
79. //
80. //Form1
81. //
82. this.AutoScaleDimensions=newSystem.Drawing.SizeF(6F,13F);
83. this.AutoScaleMode=System.Windows.Forms.AutoScaleMode.Font;
84. this.ClientSize=newSystem.Drawing.Size(284,262);
85. this.Controls.Add(this.button2);
86. this.Controls.Add(this.txtdecrypt);
87. this.Controls.Add(this.txtencrypt);
88. this.Controls.Add(this.txtplain);
89. this.Controls.Add(this.button1);
90. this.Name="Form1";
91. this.Text="Form1";
92. this.Load+=newSystem.EventHandler(this.Form1_Load);
93. this.ResumeLayout(false);
94. this.PerformLayout();
96. }
98. #endregion
100. privateSystem.Windows.Forms.Buttonbutton1;
101. privateSystem.Windows.Forms.TextBoxtxtplain;
102. privateSystem.Windows.Forms.TextBoxtxtencrypt;
103. privateSystem.Windows.Forms.TextBoxtxtdecrypt;
104. privateSystem.Windows.Forms.Buttonbutton2;
105. }
106. }
115. #thiscodeisinform1.cs
118. usingSystem;
119. usingSystem.Collections.Generic;
120. usingSystem.ComponentModel;
121. usingSystem.Data;
122. usingSystem.Drawing;
123. usingSystem.Text;
124. usingSystem.Windows.Forms;
125. usingSystem.Security.Cryptography;
127. namespaceusingRSAEncryption
128. {
129. publicpartialclassForm1:Form
130. {
131. publicForm1()
132. {
133. InitializeComponent();
134. }
135. privatevoidForm1_Load(objectsender,EventArgse)
136. {
138. }
140. #region-----EncryptionandDecryptionFunction-----
141. staticpublicbyte[]Encryption(byte[]Data,RSAParametersRSAKey,boolDoOAEPPadding)
142. {
143. try
144. {
145. byte[]encryptedData;
146. using(RSACryptoServiceProviderRSA=newRSACryptoServiceProvider())
147. {
148. RSA.ImportParameters(RSAKey);
149. encryptedData=RSA.Encrypt(Data,DoOAEPPadding);
150. }
151. returnencryptedData;
152. }
153. catch(CryptographicExceptione)
154. {
155. Console.WriteLine(e.Message);
157. returnnull;
158. }
160. }
162. staticpublicbyte[]Decryption(byte[]Data,RSAParametersRSAKey,boolDoOAEPPadding)
163. {
164. try
165. {
166. byte[]decryptedData;
167. using(RSACryptoServiceProviderRSA=newRSACryptoServiceProvider())
168. {
169. RSA.ImportParameters(RSAKey);
170. decryptedData=RSA.Decrypt(Data,DoOAEPPadding);
171. }
172. returndecryptedData;
173. }
174. catch(CryptographicExceptione)
175. {
176. Console.WriteLine(e.ToString());
178. returnnull;
179. }
181. }
182. #endregion
184. #region--variablesarea
185. UnicodeEncodingByteConverter=newUnicodeEncoding();
186. RSACryptoServiceProviderRSA=newRSACryptoServiceProvider();
187. byte[]plaintext;
188. byte[]encryptedtext;
189. #endregion
191. #region--FunctionImplemantation
192. privatevoidbutton1_Click(objectsender,EventArgse)
193. {
194. plaintext=ByteConverter.GetBytes(txtplain.Text);
195. encryptedtext=Encryption(plaintext,RSA.ExportParameters(false),false);
196. txtencrypt.Text=ByteConverter.GetString(encryptedtext);
198. }
199. privatevoidbutton2_Click(objectsender,EventArgse)
200. {
201. byte[]decryptedtex=Decryption(encryptedtext,RSA.ExportParameters(true),false);
202. txtdecrypt.Text=ByteConverter.GetString(decryptedtex);
203. }
204. #endregion
205. }
206. }
212. #andthiscodeisinprogram.cs
214. usingSystem;
215. usingSystem.Collections.Generic;
216. usingSystem.Linq;
217. usingSystem.Windows.Forms;
218. usingusingRSAEncryption;
220. namespaceWindowsFormsApplication1
221. {
222. staticclassProgram
223. {
224. ///
225. ///Themainentrypointfortheapplication.
226. ///
227. [STAThread]
228. staticvoidMain()
229. {
230. Application.EnableVisualStyles();
231. Application.SetCompatibleTextRenderingDefault(false);
232. Application.Run(newForm1());
233. }
234. }
235. }

rooholah heydari10y ago

this form with this code doesnt work . and this buttons dosent work in debugging. whats the problem?

Suresh M10y ago

add the (usingRSAEncryption )namespace in your Program.cs file or share your code