Crate universal_hash

Traits for Universal Hash Functions.

About universal hashes

Universal hash functions provide a “universal family” of possible hash functions where a given member of a family is selected by a key.

They are well suited to the purpose of “one time authenticators” for a sequence of bytestring inputs, as their construction has a number of desirable properties such as pairwise independence as well as amenability to efficient implementations, particularly when implemented using SIMD instructions.

When combined with a cipher, such as in Galois/Counter Mode (GCM) or the Salsa20 family AEAD constructions, they can provide the core functionality for a Message Authentication Code (MAC).

Re-exports

pub use crypto_common;

pub use crypto_common::generic_array;

pub use crypto_common::typenum;

Modules

consts

Type aliases for many constants.

Structs

Error

Error type used by the UniversalHash::verify method to indicate that UHF output is not equal the expected value.

Traits

KeyInit

Types which can be initialized from key.

Reset

Resettable types.

UhfBackend

Trait implemented by UHF backends.

UhfClosure

Trait for UhfBackend users.

UniversalHash

The UniversalHash trait defines a generic interface for universal hash functions.

Type Definitions

Block

Block on which BlockSizeUser implementors operate.

Key

Key used by KeySizeUser implementors.

ParBlocks

Parallel blocks on which ParBlocksSizeUser implementors operate.