AesEncryption

Question

how to Convert the JSon Object into Aes256

Naimish Makwana · Answer

Try below code: using System; using System.Security.Cryptography; using Newtonsoft.Json; namespace ExampleNamespace { class ExampleClass { static void Main(string[] args) { // Create a sample JSON object var jsonObject = new { Name = "John Doe", Age = 30, City = "New York" }; // Serialize the JSON object to a string var jsonString = JsonConvert.SerializeObject(jsonObject); // Generate a random key and IV var key = new byte[32]; var iv = new byte[16]; using (var aes = new AesManaged()) { aes.GenerateKey(); aes.GenerateIV(); key = aes.Key; iv = aes.IV; } // Convert the JSON string to a byte array var jsonBytes = System.Text.Encoding.UTF8.GetBytes(jsonString); // Encrypt the JSON byte array byte[] encryptedBytes; using (var aes = new AesManaged()) { aes.Key = key; aes.IV = iv; var encryptor = aes.CreateEncryptor(); encryptedBytes = encryptor.TransformFinalBlock(jsonBytes, 0, jsonBytes.Length); } // Convert the encrypted bytes to a base64 string var encryptedString = Convert.ToBase64String(encryptedBytes); Console.WriteLine("Encrypted JSON string: " + encryptedString); Console.ReadLine(); } } }

Tuhin Paul · Answer

To do it in Javascript, you can use the crypto-js library which provides encryption and decryption functions. const CryptoJS = require("crypto-js"); // Your JSON object const jsonObj = { name: "John", age: 30 }; // Convert JSON to string const jsonString = JSON.stringify(jsonObj); // Generate a random 256-bit key const key = CryptoJS.lib.WordArray.random(32); // Generate a random 128-bit IV const iv = CryptoJS.lib.WordArray.random(16); // Encrypt the JSON string with AES-256 CBC mode const encrypted = CryptoJS.AES.encrypt(jsonString, key, { iv: iv }).toString(); console.log("Encrypted:", encrypted); // Decrypt the encrypted string const decrypted = CryptoJS.AES.decrypt(encrypted, key, { iv: iv }).toString(CryptoJS.enc.Utf8); console.log("Decrypted:", decrypted); In this example, the CryptoJS library is used to generate a random 256-bit key and a random 128-bit IV. Then, the AES.encrypt() function is used to encrypt the JSON string with the generated key and IV using the AES-256 CBC mode. The resulting encrypted data is then printed to the console.

Tarun · Answer

Bro what about decrypt

Jay Krishna Reddy · Answer

To convert a JSON object into an AES256 encrypted format in ASP.NET, you can follow these general steps: Serialize the JSON object: Use a JSON serialization library to convert the JSON object into a string representation. Convert the string to bytes: Use a byte array to store the serialized JSON string. Generate an AES key: Use a cryptography library to generate a 256-bit AES key. Create an AES encryptor: Use the AES key to create an AES encryptor object. Encrypt the byte array: Use the AES encryptor to encrypt the byte array containing the serialized JSON string. Convert the encrypted byte array to a Base64 string: Use a Base64 encoding library to convert the encrypted byte array to a Base64-encoded string. Store the encrypted data: Store the Base64-encoded string in the database or wherever you need to store the encrypted data. Here's some sample code that demonstrates these steps using the built-in .NET cryptography library: using System.Security.Cryptography; using System.Text; using System.Web.Script.Serialization; // Serialize the JSON object var serializer = new JavaScriptSerializer(); var json = serializer.Serialize(yourJsonObject); // Convert the string to bytes var bytes = Encoding.UTF8.GetBytes(json); // Generate an AES key var aes = new AesCryptoServiceProvider(); aes.KeySize = 256; aes.GenerateKey(); // Create an AES encryptor var encryptor = aes.CreateEncryptor(); // Encrypt the byte array var encryptedBytes = encryptor.TransformFinalBlock(bytes, 0, bytes.Length); // Convert the encrypted byte array to a Base64 string var encryptedBase64 = Convert.ToBase64String(encryptedBytes); // Store the encrypted data // (e.g. store the encryptedBase64 string in the database) Note that you will need to ensure that the key used for encryption is kept secure and not shared with unauthorized parties.

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