mirror of https://github.com/zcash/zips.git
Remove a resolved TODO.
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
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@ -10739,7 +10739,6 @@ This can be implemented in one constraint:
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\begin{pnotes}
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\begin{pnotes}
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\item The bit length $n$ is not limited by the field element size.
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\item The bit length $n$ is not limited by the field element size.
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\item Since the constraint has only a trivial multiplication, it is
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\item Since the constraint has only a trivial multiplication, it is
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possible to eliminate it by merging it into the boolean constraint
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possible to eliminate it by merging it into the boolean constraint
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of one of the output bits, expressing that bit as a linear
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of one of the output bits, expressing that bit as a linear
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@ -10748,9 +10747,6 @@ This can be implemented in one constraint:
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of the circuit implementation (for a saving of only one constraint
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of the circuit implementation (for a saving of only one constraint
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per unpacking operation), and so we do not use it for the
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per unpacking operation), and so we do not use it for the
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\Sapling circuit.
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\Sapling circuit.
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\todo{Do we want to use it internally to the BLAKE2s implementation
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where modularity is not significantly affected?}
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\item In the case $n = 255$, for $a < 2^{255} - \ParamS{r}$ there are two
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\item In the case $n = 255$, for $a < 2^{255} - \ParamS{r}$ there are two
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possible representations of $a \typecolon \GF{\ParamS{r}}$ as a
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possible representations of $a \typecolon \GF{\ParamS{r}}$ as a
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sequence of $255$ bits, corresponding to $\ItoLEBSPOf{255}{a}$ and
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sequence of $255$ bits, corresponding to $\ItoLEBSPOf{255}{a}$ and
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