public static string GetHmacSha256HexText(string input, string key)
{
Encoding ascii = Encoding.ASCII;
HMACSHA256 hmac = new HMACSHA256(ascii.GetBytes(key));
return(Pg2c2pEncryption.ByteArrayToString(hmac.ComputeHash(ascii.GetBytes(input))));
}
private dynamic GetHashData(dynamic arg)
{
var para = arg.body.Value as JObject;
if (para == null)
{
return(404);
}
var settings = this.CurrentSite.pg2c2p;
var parametersString = para.Value <string>("parameters");
if (string.IsNullOrEmpty(parametersString))
{
return(404);
}
return(Pg2c2pEncryption.GetHmacSha256HexText(parametersString, (string)settings.authSercretKey));
}
public bool VerifyHash(string merchantId, string authSecretKey)
{
if (this.merchant_id != merchantId)
{
return(false);
}
var message = version + request_timestamp + merchant_id + order_id +
invoice_no + currency + amount + transaction_ref + approval_code +
eci + transaction_datetime + payment_channel + payment_status +
channel_response_code + channel_response_desc + masked_pan +
stored_card_unique_id + backend_invoice + paid_channel + paid_agent +
recurring_unique_id + user_defined_1 + user_defined_2 + user_defined_3 +
user_defined_4 + user_defined_5 + browser_info + ippPeriod +
ippInterestType + ippInterestRate + ippMerchantAbsorbRate + payment_scheme +
process_by + sub_merchant_list;
var newCypher = Pg2c2pEncryption.GetHmacSha256HexText(message, authSecretKey);
return(hash_value.ToLower() == newCypher);
}
