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Clarify that transparent inputs are prohibited in coinbase transactions only if they have a non-null `prevout` field. closes #498 

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Jack Grigg <jack@electriccoin.co>
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
Daira Hopwood 2021-05-07 16:32:26 +01:00
parent 330254c9ca
commit d0caaa2ee9
1 changed files with 4 additions and 2 deletions
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6
protocol/protocol.tex
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@ -1896,6 +1896,7 @@ electronic commerce and payment, financial privacy, proof of work, zero knowledg
\newcommand{\nConsensusBranchId}{\mathtt{nConsensusBranchId}}
\newcommand{\txInCount}{\mathtt{tx\_in\_count}}
\newcommand{\txIn}{\mathtt{tx\_in}}
\newcommand{\prevout}{\mathtt{prevout}}
\newcommand{\txOutCount}{\mathtt{tx\_out\_count}}
\newcommand{\txOut}{\mathtt{tx\_out}}
\newcommand{\lockTime}{\mathtt{lock\_time}}
@ -12361,12 +12362,11 @@ Several fields are reordered and/or renamed relative to prior versions.}} %scale
\item The total value in \zatoshi of \transparentOutputs from a \coinbaseTransaction\heartwood{, minus
$\vBalance{Sapling}$,}\nufive{ minus $\vBalance{Orchard}$,} \MUSTNOT be greater than the value in
\zatoshi of \minerSubsidy plus the \transactionFees paid by \transactions in this \block.
\item A \coinbaseTransaction \MUSTNOT have any \transparentInputs with non-null $\prevout$ fields,
\notheartwood{
\item A \coinbaseTransaction \MUSTNOT have any \transparentInputs,
\joinSplitDescriptions\sapling{, \spendDescriptions, or \outputDescriptions}.
}
\notbeforeheartwood{
\item A \coinbaseTransaction \MUSTNOT have any \transparentInputs,
\joinSplitDescriptions\sapling{, or \spendDescriptions}.
\preheartwooditem{\sapling{A \coinbaseTransaction also \MUSTNOT have any \outputDescriptions.}}
}
@ -14267,6 +14267,8 @@ Peter Newell's illustration of the Jubjub bird, from \cite{Carroll1902}.
\unifiedPaymentAddresses. Remove the corresponding note from \crossref{orchardkeycomponents}.
\item Clarify that the change to use \hashBlockCommitments{} in a \blockHeader for \NUFive is a
consensus rule.
\item Clarify that \transparentInputs are prohibited in \coinbaseTransactions only if they have
a non-null $\prevout$ field.
\item Caveat how the result of \cite{GG2015} applies to analysis of $\PRFnf{Orchard}{}$ in
\crossref{concreteprfs}.
\item Unlinkability of \diversifiedPaymentAddresses depends on the \xDecisionalDiffieHellmanProblem,