Documentation
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Overview ¶
Package pedersen implements the Pedersen vector commitment scheme verifier.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
This section is empty.
Types ¶
type Commitment ¶
type Commitment[G1El algebra.G1ElementT] struct { G1El G1El }
Commitment is a Pedersen commitment to a vector.
func ValueOfCommitment ¶
func ValueOfCommitment[G1El algebra.G1ElementT](cmt any) (Commitment[G1El], error)
ValueOfCommitment returns a Commitment from a native Pedersen commitment. It returns an error if the input does not match the expected type.
type KnowledgeProof ¶
type KnowledgeProof[G1El algebra.G1ElementT] struct { G1El G1El }
KnowledgeProof is a knowledge proof for a Pedersen commitment.
func ValueOfKnowledgeProof ¶
func ValueOfKnowledgeProof[G1El algebra.G1ElementT](kp any) (KnowledgeProof[G1El], error)
ValueOfKnowledgeProof returns a KnowledgeProof from a native Pedersen knowledge proof. It returns an error if the input does not match the expected type.
type Verifier ¶
type Verifier[FR emulated.FieldParams, G1El algebra.G1ElementT, G2El algebra.G2ElementT, GtEl algebra.GtElementT] struct { // contains filtered or unexported fields }
Verifier verifies the knowledge proofs for a Pedersen commitments
func NewVerifier ¶
func NewVerifier[FR emulated.FieldParams, G1El algebra.G1ElementT, G2El algebra.G2ElementT, GtEl algebra.GtElementT](api frontend.API) (*Verifier[FR, G1El, G2El, GtEl], error)
NewVerifier returns a new verifier for Pedersen commitments.
func (*Verifier[FR, G1El, G2El, GtEl]) AssertCommitment ¶
func (v *Verifier[FR, G1El, G2El, GtEl]) AssertCommitment(commitment Commitment[G1El], knowledgeProof KnowledgeProof[G1El], vk VerifyingKey[G2El], opts ...VerifierOption) error
AssertCommitment verifies the given commitment and knowledge proof against the given verifying key.
func (*Verifier[FR, G1El, G2El, GtEl]) FoldCommitments ¶
func (v *Verifier[FR, G1El, G2El, GtEl]) FoldCommitments(commitments []Commitment[G1El], auxTranscript ...*emulated.Element[FR]) (Commitment[G1El], error)
FoldCommitments folds the given commitments into a single commitment for efficient verification.
Currently the function panics as folding is not implemented yet.
type VerifierOption ¶
type VerifierOption func(cfg *verifierCfg) error
VerifierOption allows to modify the behaviour of Pedersen verifier.
func WithSubgroupCheck ¶
func WithSubgroupCheck() VerifierOption
WithSubgroupCheck returns a VerifierOption that forces subgroup check.
type VerifyingKey ¶
type VerifyingKey[G2El algebra.G2ElementT] struct { G G2El GSigma G2El // (-1/σ)[G] for toxic σ }
VerifyingKey is a verifying key for Pedersen vector commitments.
func ValueOfVerifyingKey ¶
func ValueOfVerifyingKey[G2El algebra.G2ElementT](vk any) (VerifyingKey[G2El], error)
ValueOfVerifyingKey returns a VerifyingKey from a native Pedersen verifying key. It returns an error if the input does not match the expected type. The method does not precompute the Miller loop lines for pairing computation, and allows to use different keys in-circuit.
func ValueOfVerifyingKeyFixed ¶
func ValueOfVerifyingKeyFixed[G2El algebra.G2ElementT](vk any) (VerifyingKey[G2El], error)
ValueOfVerifyingKeyFixed returns a VerifyingKey from a native Pedersen verifying key. It returns an error if the input does not match the expected type. The method precomputes the Miller loop lines for pairing computation, requiring to embed the key in-circuit at compile time.
Source Files