Learn Ethereum smart contract programming

Re:Learn Ethereum smart contract programming by jsnathan on Monday July 24, 2017 @06:02AM (#14837135)

In the example code used, the random number which determines the winner is derived from the previous block hash. Since the lottery-owner determines when the function is run, they could call the function when the previous block hash favors their own bet, or else modify their bet before calling the function.

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Re:Learn Ethereum smart contract programming by ym705 on Monday July 24, 2017 @06:18AM (#14837204)

Yep that is why there is a notice and link about random number generation in the tutorial.

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Re:Learn Ethereum smart contract programming by renas on Monday July 24, 2017 @08:39AM (#14837905)

try this lottery code instead https://github.com/renasboy/ETHLottery

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Re:Learn Ethereum smart contract programming by rmetzler on Tuesday July 25, 2017 @03:54PM (#14851308)

Is it correct that the betted value doesn't influence any winning chances?

Also, is the last byte of the blockhash function return value guaranteed to be equidistributed?

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