What happens if I use same k twice in DSA algorithm?
What happens if I use same k twice in DSA algorithm?
To sign a message , we choose nonce k but what happens if we use same k twice to sign a message using DSA algorithm?
https://ift.tt/2C20Ad2bitcoin node: what is the difference between simnet and regtest?
bitcoin node: what is the difference between simnet and regtest? btcd, and presumably other bitcoin node implementations, seem to have 4 network options: mainnet testnet regtest simnet. I get that mainnet and testnet both are "public" in that your node will communicate with other nodes and that both have an existing blockchain and genesis block. However, from what I can tell, both simenet and regtest both create a local only blockchain, and both will create a new genesis block. I this case, what is the difference, and which is better (easier) for developing bitcoin applications? This is what the documentation has to say: --regtest Use the regression test network --simnet Use the simulation test network https://ift.tt/2TAMkwe
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