sign_check_jws.cs

Example of signing and verifying JWS in the PIX format defined in the SPI (Instant Payment System).

See Note on examples.

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Dinamo.Hsm;
 
namespace JWSSignCheck
{
    class Program
    {
        static void Main(string[] args)
        {
            string address = "10.0.0.1";
            string user = "usuario";
            string pass = "senha";
 
            string header = "{\"alg\":\"RS256\"}";
 
            string payload = "{\"iss\":\"joe\",\"exp\":1300819380,\"http://example.com/is_root\":true}";
 
            DinamoClient din = new DinamoClient();
 
            //Conecta ao HSM
            din.Connect(address, user, pass);
 
            string keyId = "key";
            string chainId = "key_chain";
 
            //Assina PIX JWS
            byte[] signedJWS = din.SignPIXJWS(keyId, Encoding.UTF8.GetBytes(header), Encoding.UTF8.GetBytes(payload));
            Console.Out.WriteLine("JWS:\n {0}", System.Text.Encoding.Default.GetString(signedJWS));
 
            //Opção 1 de validação de assinatura PIX JWS
            bool signatureStatus = din.CheckPIXJWS(chainId, null, signedJWS);
            Console.Out.WriteLine("Status da verificação da assinatura: {0}", signatureStatus);
 
            //Opção 2 de validação de assinatura PIX JWS
            JwsComponents jwsComponents = din.CheckPIXJWS(chainId, null, signedJWS, 0);
            Console.Out.WriteLine("Header:\n {0}", System.Text.Encoding.Default.GetString(jwsComponents.Header));
            Console.Out.WriteLine("Payload:\n {0}", System.Text.Encoding.Default.GetString(jwsComponents.Payload));
            Console.Out.WriteLine("Status da verificação da assinatura: {0}", (jwsComponents.ReturnCode == 0));
        }
    }
}