Files
pallectrum/electrum
SomberNight 6584ae2ef8 transaction: add note serialize_preimage is not caching Sighash.SINGLE
Unlike a full bitcoin node, we rarely (if ever) validate the signatures of arbitrary transactions,
so I don't think these DOS issues can really be used against us.

ref https://rubin.io/bitcoin/2025/03/11/core-vuln-taproot-dos/
ref https://github.com/bitcoin/bitcoin/pull/24105

btw what is not explained in either source link is that the lack of caching is much
more serious for taproot as bip-342 lifted the 10 kbyte max size for scriptPubKeys.
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