C# equivalent to hash_hmac in PHP

Question

using .NET and C# i need to provide an integrity string using HMAC SHA512 to a PHP server . Using in C# :

Encoding encoding = Encoding.UTF8;
byte[] keyByte          


        

Answer 1

    private static string HashHmac(string message, string secret)
    {
        Encoding encoding = Encoding.UTF8;
        using (HMACSHA512 hmac = new HMACSHA512(encoding.GetBytes(secret)))
        {
            var msg = encoding.GetBytes(message);
            var hash = hmac.ComputeHash(msg);
            return BitConverter.ToString(hash).ToLower().Replace("-", string.Empty);
        }
    }