cunative

package
v1.23.1 Latest Latest
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 Go to latest Published: Sep 23, 2024 License: Apache-2.0, MIT Imports: 17 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Decode 

func Decode(replica, key io.Reader, out io.Writer) error

func DecodeSnap 

func DecodeSnap(spt abi.RegisteredSealProof, commD, commK cid.Cid, key, replica io.Reader, out io.Writer) error

Types

type B32le 

type B32le = [32]byte

func Phi 

func Phi(commDNew, commROld BytesLE) (B32le, error)

Phi implements the phi function as described in the Rust code. It computes phi = H(comm_d_new, comm_r_old) using Poseidon hash with a custom domain separation tag.

type BytesLE 

type BytesLE = []byte

type CustomDomainSepTagElement 

type CustomDomainSepTagElement struct {
	*fr.Element
}

CustomDomainSepTagElement is a custom element which overrides SetString used by the poseidon hash function to set the default hardcoded DST. We hijack the SetString function to set the DST to the hardcoded value needed for Snap.

func (*CustomDomainSepTagElement) Add 

func (c *CustomDomainSepTagElement) Add(e2 *CustomDomainSepTagElement, e *CustomDomainSepTagElement) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) BigInt 

func (c *CustomDomainSepTagElement) BigInt(b *big.Int) *big.Int

func (*CustomDomainSepTagElement) Cmp 

func (c *CustomDomainSepTagElement) Cmp(x *CustomDomainSepTagElement) int

func (*CustomDomainSepTagElement) Inverse 

func (c *CustomDomainSepTagElement) Inverse(e *CustomDomainSepTagElement) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) Mul 

func (c *CustomDomainSepTagElement) Mul(e2 *CustomDomainSepTagElement, e *CustomDomainSepTagElement) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) Set 

func (c *CustomDomainSepTagElement) Set(e *CustomDomainSepTagElement) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) SetBigInt 

func (c *CustomDomainSepTagElement) SetBigInt(b *big.Int) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) SetBytes 

func (c *CustomDomainSepTagElement) SetBytes(bytes []byte) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) SetOne 

func (c *CustomDomainSepTagElement) SetOne() *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) SetString 

func (c *CustomDomainSepTagElement) SetString(s string) (*CustomDomainSepTagElement, error)

func (*CustomDomainSepTagElement) SetUint64 

func (c *CustomDomainSepTagElement) SetUint64(u uint64) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) SetZero 

func (c *CustomDomainSepTagElement) SetZero() *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) Square 

func (c *CustomDomainSepTagElement) Square(e *CustomDomainSepTagElement) *CustomDomainSepTagElement

func (*CustomDomainSepTagElement) Sub 

func (c *CustomDomainSepTagElement) Sub(e2 *CustomDomainSepTagElement, e *CustomDomainSepTagElement) *CustomDomainSepTagElement

type Range 

type Range struct {
	Start, End uint64
}

type Rhos 

type Rhos struct {
	// contains filtered or unexported fields
}

Rhos represents a collection of precomputed rho values

func NewInv 

func NewInv(phi [32]byte, h uint64, nodesCount uint64) (*Rhos, error)

NewInv generates the inverted rhos for a certain number of nodes

func NewInvRange 

func NewInvRange(phi [32]byte, h uint64, nodesCount, offset, num uint64) (*Rhos, error)

NewInvRange generates the inverted rhos for a certain number of nodes and range

func (*Rhos) Get 

func (r *Rhos) Get(offset uint64) B32le

Get retrieves the rho for a specific node offset

Source Files

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