Class PoseidonHasher

A helper class encapsulating Poseidon hash functionality.

Implements

Hasher

Index

Constructors

Methods

compress compressInputs hashToTree

Constructors

constructor

new PoseidonHasher(): PoseidonHasher
Returns PoseidonHasher
- Defined in src/lib/alternatives/types/poseidon_hasher.ts:8

Methods

compress

compress(lhs, rhs): Field
Compresses two 32-byte hashes.
Parameters
- lhs: Field
  The first hash.
- rhs: Field
  The second hash.
Returns Field
The new 32-byte hash.
Implementation of Hasher.compress
- Defined in src/lib/alternatives/types/poseidon_hasher.ts:16

compressInputs

compressInputs(inputs): Field
Compresses an array of buffers.
Parameters
- inputs: Field[]
  The array of buffers to compress.
Returns Field
The resulting 32-byte hash.
Implementation of Hasher.compressInputs
- Defined in src/lib/alternatives/types/poseidon_hasher.ts:25

hashToTree

hashToTree(leaves): Promise<Field[]>
Given a buffer containing 32 byte poseidon leaves, return a new buffer containing the leaves and all pairs of nodes that define a merkle tree.

E.g. Input: [1][2][3][4] Output: [1][2][3][4][compress(1,2)][compress(3,4)][compress(5,6)].
Parameters
- leaves: Field[]
  The 32 byte poseidon leaves.
Returns Promise<Field[]>
A tree represented by an array.
Implementation of Hasher.hashToTree
- Defined in src/lib/alternatives/types/poseidon_hasher.ts:40