System.Security.Cryptography.HMAC.Create C# (CSharp) Method

        public static new HMAC Create()
        {
            return Create("System.Security.Cryptography.HMAC");
        }

        /// <summary>
        /// HMAC Hash
        /// </summary>
        /// <param name="algorithmName">HMACMD5, HMACSHA1, HMACSHA256, HMACSHA512 ...</param>
        /// <param name="key"></param>
        /// <param name="text"></param>
        /// <returns></returns>
        public static byte[] HMAC(string algorithmName, string key, string text)
        {
            ThrowHelper.ThrowIfNull(algorithmName, "algorithmName");
            ThrowHelper.ThrowIfNull(key, "key");
            ThrowHelper.ThrowIfNull(text, "text");

            var bKey   = UTF8Encoding.GetBytes(key);
            var buffer = UTF8Encoding.GetBytes(text);

            using (var hashAlgorithm = HMACCrypt.Create(algorithmName))
            {
                hashAlgorithm.Key = bKey;
                return(hashAlgorithm.ComputeHash(buffer));
            }
        }