Module blake2b

Available on crate feature dep_orion only.

BLAKE2b as specified in the RFC 7693.

Parameters:

• size: The desired output length for the digest.
• data: The data to be hashed.
• expected: The expected digest when verifying.

Errors:

An error will be returned if:

• size is 0 or greater than 64.
• finalize() is called twice without a reset() in between.
• update() is called after finalize() without a reset() in between.

Panics:

A panic will occur if:

• More than 2*(2^64-1) bytes of data are hashed.

Security:

• The recommended minimum output size is 32.
• This interface only allows creating hash digest using BLAKE2b. If using a secret key is desired, please refer to the mac::blake2b module.

Example:

use orion::hazardous::hash::blake2::blake2b::{Blake2b, Hasher};

// Using the streaming interface.
let mut state = Blake2b::new(64)?;
state.update(b"Some data")?;
let hash = state.finalize()?;

// Using the `Hasher` for convenience functions.
let hash_one_shot = Hasher::Blake2b512.digest(b"Some data")?;

assert_eq!(hash, hash_one_shot);

Structs

Blake2b

BLAKE2b streaming state.

Digest

A type to represent the Digest that BLAKE2b returns.

Enums

Hasher

Convenience functions for common BLAKE2b operations.