Module diem_types::transaction::authenticator

Structs

• AuthenticationKey
  A struct that represents an account authentication key. An account’s address is the last 16 bytes of authentication key used to create it
• AuthenticationKeyHasher
  Cryptographic hasher for an BCS-serializable #item
• AuthenticationKeyPreimage
  A value that can be hashed to produce an authentication key

Enums

• AccountAuthenticator
• AuthenticationError
  An error enum for issues related to transaction or account authentication.
• Scheme
  An AccountAuthenticator is an an abstraction of a signature scheme. It must know: (1) How to check its signature against a message and public key (2) How to convert its public key into an AuthenticationKeyPreimage structured as (public_key | signaure_scheme_id). Each on-chain DiemAccount must store an AuthenticationKey (computed via a sha3 hash of an AuthenticationKeyPreimage).
• TransactionAuthenticator
  Each transaction submitted to the Diem blockchain contains a TransactionAuthenticator. During transaction execution, the executor will check if every AccountAuthenticator’s signature on the transaction hash is well-formed and whether the sha3 hash of the AccountAuthenticator’s AuthenticationKeyPreimage matches the AuthenticationKey stored under the participating signer’s account address.

Constants

• MAX_NUM_OF_SIGS
  Maximum number of signatures supported in TransactionAuthenticator, across all AccountAuthenticators included.