Virtuous Webhook Signature Verification

WebhhookSigning.cs

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

public static class WebhookUtility
{
	public static bool IsVerified(string payload, string sharedSecret, string virtuousSignature)
	{
		byte[] valueByteArray = Encoding.UTF8.GetBytes(payload);
    		byte[] secretByteArray = Encoding.UTF8.GetBytes(sharedSecret);

    		using (var hmacSha256 = new HMACSHA256(secretByteArray))
    		{
    			var hashedValue = hmacSha256.ComputeHash(valueByteArray);
      			var signedPayload = Convert.ToBase64String(hashedValue);

      			if (signedPayload.Equals(virtuousSignature)) return true;
      			return false;
    		}
	}
}