Wsrtjtyk

I have some code in nodejs and I am trying to replicate in in C# but I can't seem to find a simple solution like the nodejs one:

var crypto = require('crypto');



var privateKey = '-----BEGIN RSA PRIVATE KEY-----n'+

      /// key removed

'-----END RSA PRIVATE KEY-----';



var publicKey = '-----BEGIN PUBLIC KEY-----n'+

      /// key removed

'-----END PUBLIC KEY-----';



// sign string

var signer = crypto.createSign('sha256');

signer.update('ugus-dev/logo.png');

var sign = signer.sign(privateKey,'base64');

console.log(sign);



// verify signature 

var verifier = crypto.createVerify('sha256');

verifier.update('ugus-dev/logo.png');

var ver = verifier.verify(publicKey, sign,'base64'); 



console.log(ver); // true if signature matches.

Basically i will be singing a string in C# and then verifying the signature of the string in nodeJS with the obove code for verify.

So I am looking for an equvalent of:

// sign string

var signer = crypto.createSign('sha256');

signer.update('ugus-dev/logo.png');

var sign = signer.sign(privateKey,'base64');

in C#.

A head start:

using System.Security.Cryptography;

using System.Text;



SHA256 mySHA=SHA256.Create();

string myText="yourText";

byte byteArr=Encoding.UTF8.GetBytes(myText);

byte hash=mySHA.ComputeHash(byteArr);



string res=BitConverter.ToString(hash);

//Or 

string res=Convert.ToBase64String(hash);