Generate Token

here's an example in C# for generating a token using a bank's public key and a JSON string:

using System;
using System.Security.Cryptography;
using System.Text;

public static string GenerateToken(string publicKeyString, string jsonString)
{
    // Convert the JSON string into a byte array
    byte[] jsonData = Encoding.UTF8.GetBytes(jsonString);

    // Load the bank's public key
    RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
    rsa.FromXmlString(publicKeyString);

    // Encrypt the JSON data using the bank's public key
    byte[] encryptedData = rsa.Encrypt(jsonData, true);

    // Encode the encrypted data as a base64 string
    string token = Convert.ToBase64String(encryptedData);

    return token;
}

This method takes two parameters: publicKeyString, which is the bank's public key in XML format, and jsonString, which is the JSON string that you want to encrypt.

Here's an example of how to use this method:

string publicKeyString = "......";
string jsonString = "{\"customer_id\":123456,\"amount\":100.0}";

string token = GenerateToken(publicKeyString, jsonString);
Console.WriteLine(token);

Thanks