Module concordium_rust_sdk::ecvrf

Re-export the VRF function implementation. Implementation of the verifiable random function as specified in https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-vrf-09.

Structs

• Keypair
  An ed25519 keypair.
• Proof
  Proof that the value produced by the VRF function is correct with respect to a given public key.
• ProofError
  Errors which may occur while processing proofs and keypairs.
• PublicKey
  An ed25519-like public key. This has a bit stricter requirements than the signature scheme public keys, in particular points of small order are not allowed, and this is checked during serialization.
• SecretKey
  An EdDSA secret key.

Constants

• EXPANDED_SECRET_KEY_LENGTH
  The length of an “expanded” ed25519 key, ExpandedSecretKey, in bytes.
• KEYPAIR_LENGTH
  The length of an ed25519 Keypair, in bytes.
• ONE_STRING
• PROOF_LENGTH
  The length of a VRF Proof, in bytes.
• PUBLIC_KEY_LENGTH
  The length of an ed25519 PublicKey, in bytes.
• SECRET_KEY_LENGTH
  The length of a ed25519 SecretKey, in bytes.
• SUITE_STRING
  Suite string as defined by https://tools.ietf.org/id/draft-irtf-cfrg-vrf-07.html#suites
• THREE_STRING
• TWO_STRING
• ZERO_STRING
  Strings combined with inputs to the hash function for domain separation, as discussed in https://tools.ietf.org/id/draft-irtf-cfrg-vrf-07.html#rfc.section.7.7

Functions

• hash_points
  Implements https://tools.ietf.org/id/draft-irtf-cfrg-vrf-07.html#rfc.section.5.4.3