Struct halo2_gadgets::sinsemilla::merkle::chip::MerkleChip
source · pub struct MerkleChip<Hash, Commit, Fixed>where
Hash: HashDomains<Affine>,
Fixed: FixedPoints<Affine>,
Commit: CommitDomains<Affine, Fixed, Hash>,{ /* private fields */ }
Expand description
Chip implementing MerkleInstructions
.
This chip specifically implements MerkleInstructions::hash_layer
as the MerkleCRH
function hash = SinsemillaHash(Q, 𝑙⋆ || left⋆ || right⋆)
, where:
𝑙⋆ = I2LEBSP_10(l)
left⋆ = I2LEBSP_255(left)
right⋆ = I2LEBSP_255(right)
This chip does NOT constrain left⋆
and right⋆
to be canonical encodings of
left
and right
.
Implementations§
source§impl<Hash, Commit, F> MerkleChip<Hash, Commit, F>where
Hash: HashDomains<Affine>,
F: FixedPoints<Affine>,
Commit: CommitDomains<Affine, F, Hash>,
impl<Hash, Commit, F> MerkleChip<Hash, Commit, F>where Hash: HashDomains<Affine>, F: FixedPoints<Affine>, Commit: CommitDomains<Affine, F, Hash>,
sourcepub fn configure(
meta: &mut ConstraintSystem<Base>,
sinsemilla_config: SinsemillaConfig<Hash, Commit, F>
) -> MerkleConfig<Hash, Commit, F>
pub fn configure( meta: &mut ConstraintSystem<Base>, sinsemilla_config: SinsemillaConfig<Hash, Commit, F> ) -> MerkleConfig<Hash, Commit, F>
Configures the MerkleChip
.
sourcepub fn construct(config: MerkleConfig<Hash, Commit, F>) -> Self
pub fn construct(config: MerkleConfig<Hash, Commit, F>) -> Self
Constructs a MerkleChip
given a MerkleConfig
.
Trait Implementations§
source§impl<Hash, Commit, Fixed> Chip<Fp> for MerkleChip<Hash, Commit, Fixed>where
Hash: HashDomains<Affine>,
Fixed: FixedPoints<Affine>,
Commit: CommitDomains<Affine, Fixed, Hash>,
impl<Hash, Commit, Fixed> Chip<Fp> for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine>, Fixed: FixedPoints<Affine>, Commit: CommitDomains<Affine, Fixed, Hash>,
§type Config = MerkleConfig<Hash, Commit, Fixed>
type Config = MerkleConfig<Hash, Commit, Fixed>
A type that holds the configuration for this chip, and any other state it may need
during circuit synthesis, that can be derived during
Circuit::configure
.§type Loaded = ()
type Loaded = ()
A type that holds any general chip state that needs to be loaded at the start of
Circuit::synthesize
. This might simply be ()
for some chips.source§impl<Hash, Commit, Fixed> Clone for MerkleChip<Hash, Commit, Fixed>where
Hash: HashDomains<Affine> + Clone,
Fixed: FixedPoints<Affine> + Clone,
Commit: CommitDomains<Affine, Fixed, Hash> + Clone,
impl<Hash, Commit, Fixed> Clone for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine> + Clone, Fixed: FixedPoints<Affine> + Clone, Commit: CommitDomains<Affine, Fixed, Hash> + Clone,
source§fn clone(&self) -> MerkleChip<Hash, Commit, Fixed>
fn clone(&self) -> MerkleChip<Hash, Commit, Fixed>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<Hash, Commit, F> CondSwapInstructions<Fp> for MerkleChip<Hash, Commit, F>where
Hash: HashDomains<Affine>,
F: FixedPoints<Affine>,
Commit: CommitDomains<Affine, F, Hash>,
impl<Hash, Commit, F> CondSwapInstructions<Fp> for MerkleChip<Hash, Commit, F>where Hash: HashDomains<Affine>, F: FixedPoints<Affine>, Commit: CommitDomains<Affine, F, Hash>,
source§impl<Hash, Commit, Fixed> Debug for MerkleChip<Hash, Commit, Fixed>where
Hash: HashDomains<Affine> + Debug,
Fixed: FixedPoints<Affine> + Debug,
Commit: CommitDomains<Affine, Fixed, Hash> + Debug,
impl<Hash, Commit, Fixed> Debug for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine> + Debug, Fixed: FixedPoints<Affine> + Debug, Commit: CommitDomains<Affine, Fixed, Hash> + Debug,
source§impl<Hash, Commit, F, const MERKLE_DEPTH: usize> MerkleInstructions<EpAffine, MERKLE_DEPTH, { sinsemilla::K }, { sinsemilla::C }> for MerkleChip<Hash, Commit, F>where
Hash: HashDomains<Affine> + Eq,
F: FixedPoints<Affine>,
Commit: CommitDomains<Affine, F, Hash> + Eq,
impl<Hash, Commit, F, const MERKLE_DEPTH: usize> MerkleInstructions<EpAffine, MERKLE_DEPTH, { sinsemilla::K }, { sinsemilla::C }> for MerkleChip<Hash, Commit, F>where Hash: HashDomains<Affine> + Eq, F: FixedPoints<Affine>, Commit: CommitDomains<Affine, F, Hash> + Eq,
source§fn hash_layer(
&self,
layouter: impl Layouter<Base>,
Q: Affine,
l: usize,
left: Self::Var,
right: Self::Var
) -> Result<Self::Var, Error>
fn hash_layer( &self, layouter: impl Layouter<Base>, Q: Affine, l: usize, left: Self::Var, right: Self::Var ) -> Result<Self::Var, Error>
Compute MerkleCRH for a given
layer
. The hash that computes the root
is at layer 0, and the hashes that are applied to two leaves are at
layer MERKLE_DEPTH - 1
= layer 31.source§impl<Hash, Commit, Fixed> PartialEq<MerkleChip<Hash, Commit, Fixed>> for MerkleChip<Hash, Commit, Fixed>where
Hash: HashDomains<Affine> + PartialEq,
Fixed: FixedPoints<Affine> + PartialEq,
Commit: CommitDomains<Affine, Fixed, Hash> + PartialEq,
impl<Hash, Commit, Fixed> PartialEq<MerkleChip<Hash, Commit, Fixed>> for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine> + PartialEq, Fixed: FixedPoints<Affine> + PartialEq, Commit: CommitDomains<Affine, Fixed, Hash> + PartialEq,
source§fn eq(&self, other: &MerkleChip<Hash, Commit, Fixed>) -> bool
fn eq(&self, other: &MerkleChip<Hash, Commit, Fixed>) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl<Hash, Commit, F> SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }> for MerkleChip<Hash, Commit, F>where
Hash: HashDomains<Affine>,
F: FixedPoints<Affine>,
Commit: CommitDomains<Affine, F, Hash>,
impl<Hash, Commit, F> SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }> for MerkleChip<Hash, Commit, F>where Hash: HashDomains<Affine>, F: FixedPoints<Affine>, Commit: CommitDomains<Affine, F, Hash>,
§type CellValue = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::CellValue
type CellValue = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::CellValue
A variable in the circuit.
§type Message = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::Message
type Message = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::Message
A message composed of
Self::MessagePiece
s.§type MessagePiece = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::MessagePiece
type MessagePiece = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::MessagePiece
A piece in a message containing a number of
K
-bit words.
A Self::MessagePiece
fits in a single base field element,
which means it can only contain up to N
words, where
N*K <= C::Base::CAPACITY
. Read more§type RunningSum = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::RunningSum
type RunningSum = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::RunningSum
A cumulative sum
z
is used to decompose a Sinsemilla message. It
produces intermediate values for each word in the message, such
that z_next
= (z_cur
- word_next
) / 2^K
. Read more§type X = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::X
type X = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::X
The x-coordinate of a point output of
Self::hash_to_point
.§type NonIdentityPoint = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::NonIdentityPoint
type NonIdentityPoint = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::NonIdentityPoint
A point output of
Self::hash_to_point
.§type FixedPoints = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::FixedPoints
type FixedPoints = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::FixedPoints
A type enumerating the fixed points used in
CommitDomains
.§type HashDomains = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::HashDomains
type HashDomains = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::HashDomains
HashDomains used in this instruction.
§type CommitDomains = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::CommitDomains
type CommitDomains = <SinsemillaChip<Hash, Commit, F> as SinsemillaInstructions<EpAffine, { sinsemilla::K }, { sinsemilla::C }>>::CommitDomains
CommitDomains used in this instruction.
source§fn witness_message_piece(
&self,
layouter: impl Layouter<Base>,
value: Value<Base>,
num_words: usize
) -> Result<Self::MessagePiece, Error>
fn witness_message_piece( &self, layouter: impl Layouter<Base>, value: Value<Base>, num_words: usize ) -> Result<Self::MessagePiece, Error>
Witness a message piece given a field element. Returns a
Self::MessagePiece
encoding the given message. Read moresource§fn hash_to_point(
&self,
layouter: impl Layouter<Base>,
Q: Affine,
message: Self::Message
) -> Result<(Self::NonIdentityPoint, Vec<Vec<Self::CellValue>>), Error>
fn hash_to_point( &self, layouter: impl Layouter<Base>, Q: Affine, message: Self::Message ) -> Result<(Self::NonIdentityPoint, Vec<Vec<Self::CellValue>>), Error>
Hashes a message to an ECC curve point.
This returns both the resulting point, as well as the message
decomposition in the form of intermediate values in a cumulative
sum.
source§fn extract(point: &Self::NonIdentityPoint) -> Self::X
fn extract(point: &Self::NonIdentityPoint) -> Self::X
Extracts the x-coordinate of the output of a Sinsemilla hash.
source§impl<Hash, Commit, F> UtilitiesInstructions<Fp> for MerkleChip<Hash, Commit, F>where
Hash: HashDomains<Affine>,
F: FixedPoints<Affine>,
Commit: CommitDomains<Affine, F, Hash>,
impl<Hash, Commit, F> UtilitiesInstructions<Fp> for MerkleChip<Hash, Commit, F>where Hash: HashDomains<Affine>, F: FixedPoints<Affine>, Commit: CommitDomains<Affine, F, Hash>,
impl<Hash, Commit, Fixed> Eq for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine> + Eq, Fixed: FixedPoints<Affine> + Eq, Commit: CommitDomains<Affine, Fixed, Hash> + Eq,
impl<Hash, Commit, Fixed> StructuralEq for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine>, Fixed: FixedPoints<Affine>, Commit: CommitDomains<Affine, Fixed, Hash>,
impl<Hash, Commit, Fixed> StructuralPartialEq for MerkleChip<Hash, Commit, Fixed>where Hash: HashDomains<Affine>, Fixed: FixedPoints<Affine>, Commit: CommitDomains<Affine, Fixed, Hash>,
Auto Trait Implementations§
impl<Hash, Commit, Fixed> RefUnwindSafe for MerkleChip<Hash, Commit, Fixed>where Commit: RefUnwindSafe, Fixed: RefUnwindSafe, Hash: RefUnwindSafe,
impl<Hash, Commit, Fixed> Send for MerkleChip<Hash, Commit, Fixed>where Commit: Send, Fixed: Send, Hash: Send,
impl<Hash, Commit, Fixed> Sync for MerkleChip<Hash, Commit, Fixed>where Commit: Sync, Fixed: Sync, Hash: Sync,
impl<Hash, Commit, Fixed> Unpin for MerkleChip<Hash, Commit, Fixed>where Commit: Unpin, Fixed: Unpin, Hash: Unpin,
impl<Hash, Commit, Fixed> UnwindSafe for MerkleChip<Hash, Commit, Fixed>where Commit: UnwindSafe, Fixed: UnwindSafe, Hash: UnwindSafe,
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