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Board Announcements (Altcoins)
Re: [ANN]Joincoin (J) ToR Anonymous All Algorithm mining! On C-CEX- Wallet updated!
by
sdersdf2
on 16/08/2014, 11:23:25 UTC
what's the nature of this bug? any signs that this is an intentional one that would benefit the devs?



from main.h:

Code:
const int64 nBlockAlgoWorkWeightStart = 99999999; // block where algo work weighting starts

Code:
    int GetAlgoWorkFactor() const
    {
        if (!TestNet() && (nHeight < nBlockAlgoWorkWeightStart))
        {
            return 1;
        }
        if (TestNet() && (nHeight < 100))
        {
            return 1;
        }
        switch (GetAlgo())
        {
            // work factor = absolute work ratio * optimisation factor
            case ALGO_SHA:
                return 1024 * 4;
            default:
                return 1024 * 4;
        }
    }

no algo work weighting? so one sha block can orphan 1000 scrypt blocks?
didn't you learn from myriad?

More FUD? do you feel important now? *golf clap

This is not FUD.

All you have to do to exploit this is to change a daemon to refuse all blocks except SHA blocks. Whenever this daemon generates a new block it will overwrite all blocks from other algorithms on the block-chain.


Why not donate the solution to the devs if you know for sure that this is the case? Everyone always seems to know that they are right but never come around to giving a solution to the issues. 

It was fixed in Myriadcoin. The Joincoin developers removed the fix when they cloned Myriadcoin. They can just read the Myriadcoin thread or look at the Myriadcoin source code.

If this is true too, code reviews for an altcoin should not be made by ccex anymore.. This would be the second big bug

to be fair, CCEX admins were not looking for bugs, they were looking for malicious code, verifying identity, gathering info and going over their strategy.

let's see what the devs have to say about this second bug.