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Patrick Lemke 2020-02-20 17:48:27 +01:00
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@ -303,8 +303,8 @@ Besides some other meta data the most important but not quite obvious data in th
The payee will choose a truly random number `r` and produces the `sha256` of that number which we call the Payment Hash `H(r)`.
Note that an adversary should have no means of guessing or predicting `r`.
Using a customer id or the hash of entries of the shopping cart together with a timestamp is not truly random and yields a security risk.
The payment process of the lightning network is only secure if `r` is chosen completely randomly and is not predictable and as long as the Hash function cannot be inverted.
We note that this is not an additional security assumption to Bitcoin as the security of the Hash function is currently what Bitcoin mining is building upon.
The payment process of the Lightning Network is only secure if `r` is chosen completely randomly and is not predictable and as long as the Hash function cannot be inverted.
We note that this is not an additional security assumption for Bitcoin as the security of the Hash function is currently what Bitcoin mining is built upon.
==== Additional Meta Data
Invoices can encode some other useful meta data.