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Mercurial > demo / obj/src/hash.rs

changeset 11: d8f806f1d327
author: ellis <ellis@rwest.io>
date: Sun, 14 May 2023 21:27:04 -0400
permissions: -rw-r--r--
description: obj updates 
     1 //! hash - wrapper for hash algorithms and types
     2 
     3 pub use blake3::{derive_key, hash, keyed_hash, Hash as B3Hash, Hasher as B3Hasher, OutputReader};
     4 pub use hex;
     5 pub use sha2::Sha512;
     6 
     7 pub use std::hash::{Hash, Hasher};
     8 
     9 pub const KEY_LEN: usize = 32;
    10 pub const OUT_LEN: usize = 32;
    11 pub const OUT_LEN_HEX: usize = OUT_LEN * 2;
    12 
    13 #[cfg(test)]
    14 mod tests {
    15   use crate::*;
    16   use super::*;
    17   #[test]
    18   fn id_state_hash() {
    19     let id = id::Id(vec![0; KEY_LEN]);
    20     let hash = id.state_hash(&mut B3Hasher::new());
    21     assert_eq!(hash, id.state_hash(&mut B3Hasher::new()));
    22   }
    23 
    24   #[test]
    25   fn id_hex() {
    26     let id = id::Id(vec![255; KEY_LEN]);
    27 
    28     assert_eq!(
    29       hex::decode("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap(),
    30       id.0
    31     );
    32   }
    33 
    34   #[test]
    35   fn rand_id() {
    36     let id = id::Id::rand();
    37     let hash = id.state_hash(&mut B3Hasher::new());
    38     assert_eq!(hash, id.state_hash(&mut B3Hasher::new()));
    39   }
    40 
    41   #[test]
    42   fn random_demon_id_is_valid() {
    43     use id::PeerId;
    44     for _ in 0..5000 {
    45       let did = PeerId::rand();
    46       let did2 = PeerId::rand();
    47       assert_eq!(did, did);
    48       assert_ne!(did, did2);
    49     }
    50   }
    51 }