Module sha256

Available on crate feature dep_orion only.

SHA256 as specified in the FIPS PUB 180-4.

Parameters:

• data: The data to be hashed.

Errors:

An error will be returned if:

• 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*(2^32-1) bits of data are hashed.

Security:

• SHA256 is vulnerable to length extension attacks.

Recommendation:

• It is recommended to use BLAKE2b when possible.

Example:

use orion::hazardous::hash::sha2::sha256::Sha256;

// Using the streaming interface
let mut state = Sha256::new();
state.update(b"Hello world")?;
let hash = state.finalize()?;

// Using the one-shot function
let hash_one_shot = Sha256::digest(b"Hello world")?;

assert_eq!(hash, hash_one_shot);

Structs

Digest

A type to represent the Digest that SHA256 returns.

Sha256

SHA256 streaming state.

Constants

SHA256_BLOCKSIZE

The blocksize for the hash function SHA256.

SHA256_OUTSIZE

The output size for the hash function SHA256.