In C # with des symmetric KEY,IV encryption, front-end crypto.js decryption

1. Server-side code

#region ======== Encryption ========
<summary>
Encryption
</summary>
<param name= "Text" ></param>
<returns></returns>
public static string Encrypt (String Text)
{
Return Encrypt (Text, Deskey);
}
<summary>
Encrypt data
</summary>
<param name= "Text" ></param>
<param name= "SKey" ></param>
<returns></returns>
public static string Encrypt (String Text, String SKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider ();
Byte[] Inputbytearray;
Inputbytearray = Encoding.Default.GetBytes (Text);
Des. Key = ASCIIEncoding.ASCII.GetBytes (System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile ( SKey, "MD5"). Substring (0, 8));
DES.IV = ASCIIEncoding.ASCII.GetBytes (System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile (SKey, "MD5"). Substring (0, 8));
System.IO.MemoryStream ms = new System.IO.MemoryStream ();
CryptoStream cs = new CryptoStream (MS, Des. CreateEncryptor (), cryptostreammode.write);
Cs. Write (Inputbytearray, 0, inputbytearray.length);
Cs. FlushFinalBlock ();
StringBuilder ret = new StringBuilder ();
foreach (Byte b in Ms. ToArray ())
{
Ret. AppendFormat ("{0:x2}", b); {0:X2} uppercase hexadecimal
}
return ret. ToString ();
}

#endregion

#region ======== Decryption ========
<summary>
Decrypt
</summary>
<param name= "Text" ></param>
<returns></returns>
public static string Decrypt (String Text)
{
if (!string. IsNullOrEmpty (Text))
{
Return Decrypt (Text, Deskey);
}
Else
{
Return "";
}
}
<summary>
Decrypt data
</summary>
<param name= "Text" ></param>
<param name= "SKey" ></param>
<returns></returns>
public static string Decrypt (String Text, String SKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider ();
int Len;
len = TEXT.LENGTH/2;
byte[] Inputbytearray = new Byte[len];
int x, I;
for (x = 0; x < len; + x)
{
i = Convert.ToInt32 (text.substring (x * 2, 2), 16);
INPUTBYTEARRAY[X] = (byte) i;
}
Des. Key = ASCIIEncoding.ASCII.GetBytes (System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile ( SKey, "MD5"). Substring (0, 8));
DES.IV = ASCIIEncoding.ASCII.GetBytes (System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile (SKey, "MD5"). Substring (0, 8));
System.IO.MemoryStream ms = new System.IO.MemoryStream ();
CryptoStream cs = new CryptoStream (MS, Des. CreateDecryptor (), cryptostreammode.write);
Cs. Write (Inputbytearray, 0, inputbytearray.length);
Cs. FlushFinalBlock ();
Return Encoding.Default.GetString (Ms. ToArray ());
}

#endregion

2. Front End

Encryptdes:function (INPUT,KEY,IV) {
var cipher = Crypto.createcipheriv (' des ', New buffer (key), new buffer (iv));
var buf1 = cipher.update (input, ' UTF8 ');
var buf2 = cipher.final ();
var result = new Buffer (buf1.length + buf2.length);
Buf1.copy (result);
Buf2.copy (result, buf1.length);

return result.tostring (' hex '). toUpperCase ();
},
Decryptdes:function (Encrypt_text,iv,key) {
var key = new Buffer (key);
var IV = new Buffer (Iv. iv:0);
var decipher = crypto.createdecipheriv (' Des ', key, iv);
Decipher.setautopadding (TRUE);
var txt = decipher.update (encrypt_text, ' hex ', ' UTF8 ');
TXT + = decipher.final (' UTF8 ');
return txt;
},

Str2bytes:function (str) {
        var bytes = new Array ();
        for (var i = 0; i < str.length; i++) {
            var s = str.substr (i, 1);
            var v = s.tostring (). charCodeAt ();
            Bytes.push (v);
        }
        return bytes;
    }

var crypto = require (' crypto ');

var temp=md5 (key). toString (). substring (0, 8). toUpperCase ();
var KEY = this. Str2bytes (temp); [1, 2, 3, 4, 5, 6, 7, 8];
var IV =key;                 [1, 2, 3, 4, 5, 6, 7, 8];

var encryted_content=this.encryptdes (content, KEY,IV);

var decryted_content=this.decryptdes (Encryted_content,iv,key);
var user_json=json.parse (decryted_content);

In C # with des symmetric KEY,IV encryption, front-end crypto.js decryption