Module halo2_gadgets::poseidon::primitives

The Poseidon algebraic hash function.

Structs

• Absorbing
  The absorbing state of the Sponge.
• ConstantLength
  A Poseidon hash function used with constant input length.
• Hash
  A Poseidon hash function, built around a sponge.
• P128Pow5T3
  Poseidon-128 using the $x^5$ S-box, with a width of 3 field elements, and the standard number of rounds for 128-bit security “with margin”.
• Squeezing
  The squeezing state of the Sponge.

Traits

• Domain
  A domain in which a Poseidon hash function is being used.
• Spec
  A specification for a Poseidon permutation.
• SpongeMode
  The state of the Sponge.

Functions

• generate_constants
  Generates (round_constants, mds, mds^-1) corresponding to this specification.

Type Aliases

• Mds
  The type used to hold the MDS matrix and its inverse.