sha2 0.11.0

Pure Rust implementation of the SHA-2 hash function family including SHA-224, SHA-256, SHA-384, and SHA-512.
Documentation 
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use digest::{
    dev::{feed_rand_16mib, fixed_reset_test},
    hash_serialization_test, new_test,
};
use hex_literal::hex;
use sha2::{Digest, Sha224, Sha256, Sha384, Sha512, Sha512_224, Sha512_256};

new_test!(sha224_kat, Sha224, fixed_reset_test);
new_test!(sha256_kat, Sha256, fixed_reset_test);
new_test!(sha384_kat, Sha384, fixed_reset_test);
new_test!(sha512_kat, Sha512, fixed_reset_test);
new_test!(sha512_224_kat, Sha512_224, fixed_reset_test);
new_test!(sha512_256_kat, Sha512_256, fixed_reset_test);

hash_serialization_test!(sha224_serialization, Sha224);
hash_serialization_test!(sha256_serialization, Sha256);
hash_serialization_test!(sha384_serialization, Sha384);
hash_serialization_test!(sha512_serialization, Sha512);
hash_serialization_test!(sha512_224_serialization, Sha512_224);
hash_serialization_test!(sha512_256_serialization, Sha512_256);

#[test]
fn sha256_rand() {
    let mut h = Sha256::new();
    feed_rand_16mib(&mut h);
    assert_eq!(
        h.finalize(),
        hex!("45f51fead87328fe837a86f4f1ac0eb15116ab1473adc0423ef86c62eb2320c7"),
    );
}

#[test]
fn sha512_rand() {
    let mut h = Sha512::new();
    feed_rand_16mib(&mut h);
    assert_eq!(
        h.finalize(),
        hex!(
            "9084d75a7c0721541d737b6171eb465dc9ba08a119a182a8508484aa27a176cd"
            "e7c2103b108393eb024493ced4aac56be6f57222cac41b801f11494886264997"
        ),
    );
}