It introduces too much trust into the download source. It's the same thing as just uploading a datadir. You aren't verifying any of the blockchain history; what you download could be a fork of the blo...
Lightning network connections do not use TLS or certificates at all, as far as I know (note that this may be different for other types of connections, like RPC). To explain why, let us look at how the...
Grover's is related and some considerations were discussed here on Stackexchange, too. We could design a black box function to break both P2PKH and P2SH (and P2WSH, etc.) addresses in 2^80 single-thr...
ECDSA signatures are pairs (r,s) where r=(k*G).x mod n, and s = (m + r*x)/k mod n, where x is the secret key, k is the random nonce, and m is the message. If you have two s values s1 and s2 for the sa...
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