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Merge #219 #221

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219: Rename variables to add to understanding the code r=da-kami a=da-kami



221: Fix/improve comment explaining TxRefund encsigning r=thomaseizinger a=rishflab



Co-authored-by: Daniel Karzel <daniel@comit.network>
Co-authored-by: rishflab <rishflab@hotmail.com>
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bors[bot] 2021-02-23 03:37:26 +00:00 • committed by GitHub
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2 changed files with 20 additions and 17 deletions
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11
swap/src/bitcoin.rs
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@ -89,12 +89,11 @@ impl SecretKey {
// joint output for TxLock_Monero
// tx_refund: multisig(A, B), published by bob
// bob can produce sig on B for tx_refund using b
// alice sends over an encrypted signature on A for tx_refund using a encrypted
// with S_b we want to leak s_b
// produced (by Alice) encsig - published (by Bob) sig = s_b (it's not really
// subtraction, it's recover)
// bob can produce sig on B using b
// alice sends over an encrypted signature on A encrypted with S_b
// s_b is leaked to alice when bob publishes signed tx_refund allowing her to
// recover s_b: recover(encsig, S_b, sig_tx_refund) = s_b
// alice now has s_a and s_b and can refund monero
// self = a, Y = S_b, digest = tx_refund
pub fn encsign(&self, Y: PublicKey, digest: SigHash) -> EncryptedSignature {