C # Implementation of AES encryption and decryption complete instance _c# tutorial

The examples in this article describe the AES cryptographic decryption implemented by C #. Share to everyone for your reference, specific as follows:

/****************************************************************** * Creator: HTL * Description: C # AES Encryption decryption **********************
/using System;
Using System.Security.Cryptography;
Using System.Text;
Using System.IO;
 public class Test {public static void Main () {//password string password= "1234567890123456";
 Cryptographic initialization vector string iv= "";
 String Message=aesencrypt ("abcdefghigklmnopqrstuvwxyz0123456789", Password,iv);
 Console.WriteLine (message);
 Message=aesdecrypt ("8z3dzzqn05fmiublowexk0cabs4ty2gorc2ddpvlsn/tp+vujgepqimv1usaverr", Password,iv);
 Console.WriteLine (message); }///<summary>///AES Encryption///</summary>///<param name= "text" > Encryption character </param>///<param na Me= "password" > encrypted password </param>///<param name= "IV" > key </param>///<returns></returns > public static string Aesencrypt (string text, string password, string iv) {RijndaelManaged rijndaelcipher = new Ri
 Jndaelmanaged (); RijndaelciPher.
 Mode = CIPHERMODE.CBC;
 rijndaelcipher.padding = PADDINGMODE.PKCS7;
 rijndaelcipher.keysize = 128;
 rijndaelcipher.blocksize = 128;
 byte[] pwdbytes = System.Text.Encoding.UTF8.GetBytes (password);
 byte[] keybytes = new BYTE[16];
 int len = pwdbytes.length;
 if (len > keybytes.length) len = keybytes.length;
 System.Array.Copy (Pwdbytes, Keybytes, Len);
 Rijndaelcipher.key = keybytes;
 byte[] Ivbytes = System.Text.Encoding.UTF8.GetBytes (iv);
 RIJNDAELCIPHER.IV = new BYTE[16];
 ICryptoTransform transform = Rijndaelcipher.createencryptor ();
 byte[] plaintext = Encoding.UTF8.GetBytes (text); Byte[] Cipherbytes = transform.
 TransformFinalBlock (plaintext, 0, plaintext.length);
 Return convert.tobase64string (cipherbytes); ///<summary>///AES decryption///</summary>///<param name= "text" ></param>///<param name= " Password "></param>///<param name=" IV "></param>///<returns></returns> Public static string Aesdecrypt (StrinG-Text, string password, string iv) {RijndaelManaged rijndaelcipher = new RijndaelManaged ();
 Rijndaelcipher.mode = CIPHERMODE.CBC;
 rijndaelcipher.padding = PADDINGMODE.PKCS7;
 rijndaelcipher.keysize = 128;
 rijndaelcipher.blocksize = 128;
 byte[] EncryptedData = convert.frombase64string (text);
 byte[] pwdbytes = System.Text.Encoding.UTF8.GetBytes (password);
 byte[] keybytes = new BYTE[16];
 int len = pwdbytes.length;
 if (len > keybytes.length) len = keybytes.length;
 System.Array.Copy (Pwdbytes, Keybytes, Len);
 Rijndaelcipher.key = keybytes;
 byte[] Ivbytes = System.Text.Encoding.UTF8.GetBytes (iv);
 RIJNDAELCIPHER.IV = ivbytes;
 ICryptoTransform transform = Rijndaelcipher.createdecryptor (); Byte[] plaintext = transform.
 TransformFinalBlock (EncryptedData, 0, encrypteddata.length);
 return Encoding.UTF8.GetString (plaintext);

 }
}

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MD5 Online Encryption Tool:

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Thunderbolt, Express, Cyclone URL encryption/decryption tool:

Tools.jb51.net/password/urlrethunder

Online hashing/hashing algorithm encryption tool:

Tools.jb51.net/password/hash_encrypt

More about C # related content can also view the site topics: "C # Encryption and decryption algorithms and techniques Summary", "C # form Operation Tips Summary", "C # Common control usage Tutorial", "WinForm Control Usage Summary", "C # Programming Thread Usage Skills summary", "C # operation Excel Skills Summary "," C # in the XML file Operation skills Summary, "C # Data structure and algorithm tutorial", "C # array Operation skills Summary" and "C # object-oriented Program Design Introductory Course"

I hope this article will help you with your C # programming.