[TOOL] GANGSTA open source double spend tool

[bober182]

https://github.com/BoBeR182/gangsta

GANGSTA is a double spend tool using replace-by-fee and attacks zero-confirmation accepting bitcoin sellers.

[emrebey]

there was a reddit thread about this:
https://www.reddit.com/r/Bitcoin/comments/2z7y0d/gangsta_replace_by_fee_double_spend_tool/

[doof]

Debating on opening up a bounty to help port this to a fully stand alone service that requires no imports of private keys.

Would anyone be interested with a 1BTC bounty?

You mean like a hosted online wallet?

[Muhammed Zakir]

More like a way to do a double without risking your private keys to a random strange server.

You can offer that by giving user unsigned tx after creating double spend raw tx and they can sign it with their client.

[Muhammed Zakir]

Sounds like a plan all I need is a bitcoin replace-by-fee node and the insight API I guess.

Remember, not all client allows you to sign raw tx. I suggest you to make a small tutorial(picture-only) and show them how to do it. It will be good if you give Bitcoin core and Armory compatible raw tx. Most of them don't support Armory for this type of things.

P.S. How will you relay it? I tried to push tx with almost all sites but all of them(except one - not so good) rejected double-spend raw tx.

[redsn0w]

Debating on opening up a bounty to help port this to a fully stand alone service that requires no imports of private keys.

Would anyone be interested with a 1BTC bounty?

Try to contact this user : https://github.com/gdassori but I think he will ask more than 1 bitcoin (but maybe you should try, why not?). Good luck with your "research".