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Now you can create a page for testing the class you created previously. Just create a page that allows you to generate a key and enter clear-text data through a text box. You can output the encrypted data through Convert.ToBase64String() easily. For decryption, you just need to revert the operation through Convert.FromBase64String() to get the encrypted bytes back and pass them into the DecryptData method. private string KeyFileName; private string AlgorithmName = "DES"; protected void Page_Load(object sender, EventArgs e) { SymmetricEncryptionUtility.AlgorithmName = AlgorithmName; KeyFileName = Server.MapPath("~/") + "\\symmetric_key.config"; } protected void GenerateKeyCommand_Click(object sender, EventArgs e) { SymmetricEncryptionUtility.ProtectKey = EncryptKeyCheck.Checked; SymmetricEncryptionUtility.GenerateKey(KeyFileName); Response.Write("Key generated successfully!"); } protected void EncryptCommand_Click(object sender, EventArgs e) { // Check for encryption key if (!File.Exists(KeyFileName)) { Response.Write("Missing encryption key. Please generate key!"); } byte[] data = SymmetricEncryptionUtility.EncryptData( ClearDataText.Text, KeyFileName); EncryptedDataText.Text = Convert.ToBase64String(data); } protected void DecryptCommand_Click(object sender, EventArgs e) { // Check for encryption key if (!File.Exists(KeyFileName)) { Response.Write("Missing encryption key. Please generate key!"); } byte[] data = Convert.FromBase64String(EncryptedDataText.Text); ClearDataText.Text = SymmetricEncryptionUtility.DecryptData( data, KeyFileName); } c# ean 128 reader Packages matching GS1-128 - NuGet Gallery
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EAN 128 Generator for .NET, C#, ASP.NET, VB.NET, Generates High Quality Barcode Images in .NET Projects. The previous page uses the DES algorithm because you set the AlgorithmName of your utility class appropriately. Within the Click event of the GenerateKeyCommand button, it calls the GenerateKey() method. Depending on the check box of the page, it encrypts the key itself through the DPAPI or not. After the data has been encrypted through your utility class within the Click event of the EncryptCommand button, it converts the encrypted bytes to a Base64 string and then writes it to the EcryptedDataText text box. Therefore, if you want to decrypt information again, you have to create a byte array based on this Base64 string representation and then call the method for decryption. You can see the result in Figure 25-6. ean 128 word font, birt ean 13, birt data matrix, birt report qr code, microsoft word qr code generator, word data matrix font c# ean 128 reader C# GS1 128 (UCC/EAN 128) - OnBarcode
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C#.NET GS1-128 Generator for barcode prject developers to create barcode in C#.NET class, Data Matrix, PDF417, QR Code, Code128, Code39. Using asymmetric algorithms is similar to using symmetric algorithms. You will see just a handful of differences. The major difference has to do with key management. Symmetric algorithms just have one key, and asymmetric algorithms have two keys: one for encrypting data (public key) and one for decrypting data (private key). While the public key can be available to everyone who wants to encrypt data, the private key should be available only to those decrypting information. In this section, you will create a utility class similar to the previous one. Because the .NET Framework ships with only one asymmetric algorithm for real data encryption (RSA; remember, DSA is used for digital signatures only), you don t need to include a way to select the algorithm (for a while). public static class AsymmetricEncryptionUtility { public static string GenerateKey(string targetFile) { } private static void ReadKey( RSACryptoServiceProvider algorithm, string keyFile) { } public static byte[] EncryptData(string data, string publicKey) { } public static string DecryptData(byte[] data, string keyFile) { } } individual property features using the later in this chapter. model described in the properties.models.Feature section c# ean 128 reader Best 20 NuGet gs1-128 Packages - NuGet Must Haves Package
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Apr 22, 2018 · Decode EAN-128 with ByteScout Barcode Reader SDK https://bytescout.com/articles ...Duration: 0:58 Posted: Apr 22, 2018 The GenerateKey method creates an instance of the RSA algorithm for generating the key. It stores only the private key in the file secured through the DPAPI and returns the public key representation as a string. public static string GenerateKey(string targetFile) { RSACryptoServiceProvider Algorithm = new RSACryptoServiceProvider(); // Save the private key string CompleteKey = Algorithm.ToXmlString(true); byte[] KeyBytes = Encoding.UTF8.GetBytes(CompleteKey); KeyBytes = ProtectedData.Protect(KeyBytes, null, DataProtectionScope.LocalMachine); using (FileStream fs = new FileStream(targetFile, FileMode.Create)) { fs.Write(KeyBytes, 0, KeyBytes.Length); } // Return the public key return Algorithm.ToXmlString(false); } The caller of the function needs to store the public key somewhere; this is necessary for encrypting information. You can retrieve the key as an XML representation through a method called ToXmlString(). The parameter specifies whether private key information is included (true) or not (false). Therefore, the GenerateKey function first calls the function with the true parameter to store the complete key information in the file and then calls it with the false parameter to include the public key only. Subsequently, the ReadKey() method just reads the key from the file and then initializes the passed algorithm instance through FromXml(), the opposite of the ToXmlString() method: private static void ReadKey(RSACryptoServiceProvider algorithm, string keyFile) { byte[] KeyBytes; using(FileStream fs = new FileStream(keyFile, FileMode.Open)) { KeyBytes = new byte[fs.Length]; fs.Read(KeyBytes, 0, (int)fs.Length); } KeyBytes = ProtectedData.Unprotect(KeyBytes, null, DataProtectionScope.LocalMachine); algorithm.FromXmlString(Encoding.UTF8.GetString(KeyBytes)); } This time the ReadKey method is used by the decryption function only. The EncryptData() function requires the caller to pass in the XML string representation of the public key returned by the GenerateKey method, because the private key is not required for encryption. Encryption and decryption with RSA takes place as follows: c# gs1 128 ilopez/GS1Parser: A GS1 Parser for C - GitHub
Jun 9, 2015 · A GS1 Parser for C#. Contribute to ... http://stackoverflow.com/questions/9721718/ean128-or-gs1-128-decode-c-sharp/28854802#28854802. c# ean 128 reader C# Imaging - GS1-128(UCC/EAN-128) Generator - RasterEdge.com
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