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Showing 4 of 4 results by sam12345
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Topic
Board Announcements (Altcoins)
Re: [ANN][ICO] Fire Lotto - International blockchain LOTTERY
by
sam12345
on 04/01/2018, 12:47:54 UTC
If i want to buy a lotto ticket i have to enter my private key!?  Shocked

Why does it not give a pay adress so i can send and you send prices to that pay adress if i win something.

The private key is not stored anywhere and is used only at the time of payment, as well as when paying by card in a regular online store.

You can have a separate ETH purse only for Fire Lotto, transferring to it the amount for purchase of tickets, and then him buying tickets.
Just Fire Lotto have the opportunity to purchase a ticket directly through smartcontract (without a website), we will post the instructions.

Sorry this seam to be very untrusty. A lot of people know that, but there is still a lot people out there who just past their private key of there normal wallet.
This looks very like a fraud to a suspicious user.

This way you make yourself look like a scam. Why you don't implement it correctly with a simple smart contract as Dopert suggested?
There are two possibilities:
a) you're not able to do that
b) you want to misuse the private keys.

Both makes your project looking very bad.

A simple solution on your end would be, that you generate the private and public key pair and send the address to the user who would register with his public key and want to participate at your lottery.

I'm out, I will not play at your platform nor will I invest.
Post
Topic
Board Announcements (Altcoins)
Re: [ANN][ICO] Dmarket - the worlds first decentralized, cross-game marketplace.
by
sam12345
on 18/08/2017, 13:14:27 UTC
I just love, when in bitcointalk thread noobs with 1-2 post pop up and start spreading FUD.  That's a sign of success. 

Guys, with proper effort you can reach Legendary status with your FUD, as icey did on DASH thread.  Keep posting! Smiley

Is it better to post gossip like this?
Post
Topic
Board Announcements (Altcoins)
Re: [ANN][ICO] Dmarket - the worlds first decentralized, cross-game marketplace.
by
sam12345
on 18/08/2017, 06:18:20 UTC

Thanks for sharing this. That was also my question, when I checked the "Contract"...
It's no smart contract, it's only a wallet... And if the guys telling you it's a contract, then they are stupid scammers or people without any knowhow about the blockchain.

On more ICO worth nothing more then thin air.
Post
Topic
Board Scam Accusations
Re: Ziber.io is a scam! DO NOT INVEST!! Now CONFIRMED! Doors are now closed - HAHAHA
by
sam12345
on 27/07/2017, 21:15:45 UTC

The actual vulnerability isn't the one stated in the announcement made by Ziber user.

The attacker firstly restarted the Crowdsale by calling the Crowdsale function
https://etherscan.io/tx/0x21d1093cd6014d8ed543c1d8e9f72f904284fb77aaa9296a1f792b745f2785a1
as we see in the Crowdsale function which can be called by anyone the owner becomes the person who is calling the function, pretty simple hack, lol.

function Crowdsale(address _token, uint _start) {
    require(_token != 0);
    require(_start != 0);

    owner = msg.sender;
    token = ZiberToken(_token);
    startsAt = _start;
  }

then just a call to Withdraw function (https://etherscan.io/tx/0xb7f0d837a10028271d7177e86b595b266302f1bc65c9db5cd7a6d48740c2c4de) and there goes 1000 ether




Even the stlying of the code was designed to be "invisible" for people who (didn't) check the code carefully before investing:

  /// @dev Constructor
  /// @param _token Pay Fair token address
  /// @param _start token ICO start date
  function Crowdsale(address _token, uint _start) {
    require(_token != 0);
    require(_start != 0);

    owner = msg.sender;
    token = ZiberToken(_token);
    startsAt = _start;
  }

Well a Constructor needs to have the same name as the Contract (ZiberCrowdsale) -> it isn't in this case, but written as it is in the comment
An owner is normally assigned on the contract creation, and only the owner can transfer the ownership.
here, this method is designed to be transferd by anybody.

If it's by mistake, then it's a real stupid one and the crowdsale wouldn't have even started without explicitly calling this method. Then the custructor is only called once when the contract is created and can't be called afterwards.