hash_utils 0.1.0

A collection of hash functions
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157

use fnv_rs::FnvHasher;
use super::Hasher;

#[cfg(not(feature="hash_fnv_64_minus"))]
pub struct Fnv1a32;
#[cfg(not(feature="hash_fnv_64_minus"))]
impl Hasher for Fnv1a32 {
    fn hash_name(&self) -> &'static str {
        "FNV-1a 32 bit"
    }
    fn active_bits(&self) -> &'static u32 {
        &32
    }
    fn hash(&self, data: &[u8]) -> Vec<u8> {
        let mut hasher = fnv_rs::Fnv32::default();
        hasher.update(data);
        hasher.finalize().as_bytes().to_vec()
    }
}

#[cfg(not(feature="hash_fnv_64_minus"))]
pub struct Fnv1a64;
#[cfg(not(feature="hash_fnv_64_minus"))]
impl Hasher for Fnv1a64 {
    fn hash_name(&self) -> &'static str {
        "FNV-1a 64 bit"
    }
    fn active_bits(&self) -> &'static u32 {
        &64
    }
    fn hash(&self, data: &[u8]) -> Vec<u8> {
        let mut hasher = fnv_rs::Fnv64::default();
        hasher.update(data);
        hasher.finalize().as_bytes().to_vec()
    }
}

pub struct Fnv1a128;
impl Hasher for Fnv1a128 {
    fn hash_name(&self) -> &'static str {
        "FNV-1a 128 bit"
    }
    fn active_bits(&self) -> &'static u32 {
        &128
    }
    fn hash(&self, data: &[u8]) -> Vec<u8> {
        let mut hasher = fnv_rs::Fnv128::default();
        hasher.update(data);
        hasher.finalize().as_bytes().to_vec()
    }
}

pub struct Fnv1a256;
impl Hasher for Fnv1a256 {
    fn hash_name(&self) -> &'static str {
        "FNV-1a 256 bit"
    }
    fn active_bits(&self) -> &'static u32 {
        &256
    }
    fn hash(&self, data: &[u8]) -> Vec<u8> {
        let mut hasher = fnv_rs::Fnv256::default();
        hasher.update(data);
        hasher.finalize().as_bytes().to_vec()
    }
}

pub struct Fnv1a512;
impl Hasher for Fnv1a512 {
    fn hash_name(&self) -> &'static str {
        "FNV-1a 512 bit"
    }
    fn active_bits(&self) -> &'static u32 {
        &512
    }
    fn hash(&self, data: &[u8]) -> Vec<u8> {
        let mut hasher = fnv_rs::Fnv512::default();
        hasher.update(data);
        hasher.finalize().as_bytes().to_vec()
    }
}

pub struct Fnv1a1024;
impl Hasher for Fnv1a1024 {
    fn hash_name(&self) -> &'static str {
        "FNV-1a 1024 bit"
    }
    fn active_bits(&self) -> &'static u32 {
        &1024
    }
    fn hash(&self, data: &[u8]) -> Vec<u8> {
        let mut hasher = fnv_rs::Fnv1024::default();
        hasher.update(data);
        hasher.finalize().as_bytes().to_vec()
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    #[cfg(not(feature="hash_fnv_64_minus"))]
    fn fnv_1a_32_hash_validate() {
        use hex::decode;
        let hasher = Fnv1a32;

        assert_eq!(hasher.hash(b"abc"), decode("1a47e90b").unwrap());
        assert_eq!(hasher.hash(b"12345678901234567890123456789012345678901234567890123456789012345678901234567890"), decode("5b52cd65").unwrap());
    }

    #[test]
    #[cfg(not(feature="hash_fnv_64_minus"))]
    fn fnv_1a_64_hash_validate() {
        use hex::decode;
        let hasher = Fnv1a64;

        assert_eq!(hasher.hash(b"abc"), decode("e71fa2190541574b").unwrap());
        assert_eq!(hasher.hash(b"12345678901234567890123456789012345678901234567890123456789012345678901234567890"), decode("95ee3578614f3045").unwrap());
    }

    #[test]
    fn fnv_1a_128_hash_validate() {
        use hex::decode;
        let hasher = Fnv1a128;

        assert_eq!(hasher.hash(b"abc"), decode("a68d622cec8b5822836dbc7977af7f3b").unwrap());
        // ToDo: Add longer test case
    }

    #[test]
    fn fnv_1a_256_hash_validate() {
        use hex::decode;
        let hasher = Fnv1a256;

        assert_eq!(hasher.hash(b"abc"), decode("8b0e658c2f1c837f90d6c7e359de3a1784bd1d30340f770be97fd65817736f4b").unwrap());
        // ToDo: Add longer test case
    }

    #[test]
    fn fnv_1a_512_hash_validate() {
        use hex::decode;
        let hasher = Fnv1a512;

        assert_eq!(hasher.hash(b"abc"), decode("142433ed48a78bb429a7dba8911e8824dcd76c02620000000000001f96475fbd69323ab91bbf83bd3e36fbfd7d0c038b1075dbff4f7a2150e9f28b6e798100d3").unwrap());
        // ToDo: Add longer test case
    }

    #[test]
    fn fnv_1a_1024_hash_validate() {
        use hex::decode;
        let hasher = Fnv1a1024;

        assert_eq!(hasher.hash(b"abc"), decode("000000000001868ce88bd2c7cdc5fa5e52ebb9925ff5ea668dff4576aa4ba65819176ce6b925a8420606e2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011d09af071cf00b53007a8e594c73348a3dbb339aead4953fdf93cfff54816f5e2d1e29c8f4f").unwrap());
        // ToDo: Add longer test case
    }
}