public bool Verify(SAuthInfo response, string itemId)
{
RSACryptoServiceProvider csp = retrieveCryptoServiceProvider();
string verificationMessage = getVerificationMessage(response, itemId);
byte[] hash = getSha256Hash(verificationMessage);
byte[] signature = HexStringToByteArray(response.signature);
return(csp.VerifyHash(hash, CryptoConfig.MapNameToOID("SHA256"), signature));
}
// @MBills documentation
private string getVerificationMessage(SAuthInfo response, string itemId)
{
return(this.apiKey + response.nonce + response.timestamp + itemId); // itemId is e.g. transactionId
}
