Imagine somebody injects two transactions d1 and d2 into the network that together represent a double-spend attempt. Having only incomplete information of all latest transactions in the network, I see one of them first, let's say d1, and confirm it with my transaction t that spends the funds at my address a. The network eventually resolves the double-spend by dismissing one of d1 and d2. So, if I am unlucky, d1 is dismissed and in consequence my transaction t becomes invalid.

I am forced to create a transaction t' spending funds from the same address as t, namely a. However, I'm not supposed to do that because it compromises my private key for a (see also this question). If my second attempt fails again for whatever reason (maybe an attacker is flooding the network with double-spends to make such situations likely, see also this question I asked), an even larger part of my private key is revealed.

Is this an issue and what can I do about it as a user?

1 Answer 1


According to this answer to another question, I can just reattach my transaction again without signing it, so the answer is no. I cannot be forced to reuse my address for spending this way.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.