djangohashers 1.5.10

A Rust port of the password primitives used in Django project.
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
158
159

//! Set of cryptographic functions to simplify the Hashers.

#[cfg(any(
    feature = "with_pbkdf2",
    feature = "with_argon2",
    feature = "with_scrypt"
))]
use base64::engine::general_purpose;
#[cfg(any(
    feature = "with_pbkdf2",
    feature = "with_argon2",
    feature = "with_scrypt"
))]
use base64::engine::Engine as _;

#[cfg(any(
    feature = "with_pbkdf2",
    feature = "with_argon2",
    feature = "with_legacy",
    feature = "with_scrypt"
))]
pub fn safe_eq(a: &str, b: String) -> bool {
    constant_time_eq::constant_time_eq(a.as_bytes(), b.as_bytes())
}

#[cfg(feature = "with_argon2")]
use argon2::{self, Config, ThreadMode, Variant, Version};

#[cfg(all(feature = "with_pbkdf2", not(feature = "fpbkdf2")))]
pub fn hash_pbkdf2_sha256(password: &str, salt: &str, iterations: u32) -> String {
    let mut result = [0u8; 32];
    use core::num::NonZeroU32;
    ring::pbkdf2::derive(
        ring::pbkdf2::PBKDF2_HMAC_SHA256,
        NonZeroU32::new(iterations as u32).unwrap(),
        &salt.as_bytes(),
        password.as_bytes(),
        &mut result,
    );
    general_purpose::STANDARD.encode(&result)
}

#[cfg(feature = "with_pbkdf2")]
#[cfg(feature = "fpbkdf2")]
pub fn hash_pbkdf2_sha256(password: &str, salt: &str, iterations: u32) -> String {
    let mut result = [0u8; 32];
    fastpbkdf2::pbkdf2_hmac_sha256(
        &password.as_bytes(),
        &salt.as_bytes(),
        iterations,
        &mut result,
    );
    general_purpose::STANDARD.encode(&result)
}

#[cfg(feature = "with_pbkdf2")]
#[cfg(not(feature = "fpbkdf2"))]
pub fn hash_pbkdf2_sha1(password: &str, salt: &str, iterations: u32) -> String {
    let mut result = [0u8; 20];
    use core::num::NonZeroU32;
    ring::pbkdf2::derive(
        ring::pbkdf2::PBKDF2_HMAC_SHA1,
        NonZeroU32::new(iterations as u32).unwrap(),
        &salt.as_bytes(),
        password.as_bytes(),
        &mut result,
    );
    general_purpose::STANDARD.encode(&result)
}

#[cfg(feature = "with_pbkdf2")]
#[cfg(feature = "fpbkdf2")]
pub fn hash_pbkdf2_sha1(password: &str, salt: &str, iterations: u32) -> String {
    let mut result = [0u8; 20];
    fastpbkdf2::pbkdf2_hmac_sha1(
        &password.as_bytes(),
        &salt.as_bytes(),
        iterations,
        &mut result,
    );
    general_purpose::STANDARD.encode(&result)
}

#[cfg(feature = "with_legacy")]
pub fn hash_sha1(password: &str, salt: &str) -> String {
    use hex_fmt::HexFmt;
    use sha1::{Digest, Sha1};
    let mut hasher = Sha1::new();
    hasher.update(salt);
    hasher.update(password);
    let result = hasher.finalize();
    format!("{}", HexFmt(&result[..]))
}

#[cfg(feature = "with_bcrypt")]
pub fn hash_sha256(password: &str) -> String {
    use sha2::{Digest, Sha256};
    format!("{:x}", Sha256::digest(password.as_bytes()))
}

#[cfg(feature = "with_legacy")]
pub fn hash_md5(password: &str, salt: &str) -> String {
    use hex_fmt::HexFmt;
    use md5::{Digest, Md5};
    let mut hasher = Md5::new();
    hasher.update(salt);
    hasher.update(password);
    let result = hasher.finalize();
    format!("{}", HexFmt(&result[..]))
}

#[cfg(feature = "with_legacy")]
pub fn hash_unix_crypt(password: &str, salt: &str) -> String {
    #[allow(deprecated)]
    pwhash::unix_crypt::hash_with(salt, password).unwrap_or_default()
}

#[cfg(feature = "with_argon2")]
pub fn hash_argon2(
    password: &str,
    salt: &str,
    time_cost: u32,
    memory_cost: u32,
    parallelism: u32,
    version: Version,
    hash_length: u32,
) -> String {
    let config = Config {
        variant: Variant::Argon2i,
        version,
        mem_cost: memory_cost,
        time_cost,
        lanes: parallelism,
        thread_mode: ThreadMode::Parallel,
        secret: &[],
        ad: &[],
        hash_length,
    };
    let salt_bytes = general_purpose::URL_SAFE_NO_PAD.decode(salt).unwrap();
    let result = argon2::hash_raw(password.as_bytes(), &salt_bytes, &config).unwrap();
    general_purpose::URL_SAFE_NO_PAD.encode(&result)
}

#[cfg(feature = "with_scrypt")]
use scrypt::{scrypt, Params};

#[cfg(feature = "with_scrypt")]
pub fn hash_scrypt(
    password: &str,
    salt: &str,
    work_factor: u8,
    block_size: u32,
    parallelism: u32,
) -> String {
    let mut buf = [0u8; 64];
    let params = Params::new(work_factor, block_size, parallelism).unwrap();
    scrypt(password.as_bytes(), salt.as_bytes(), &params, &mut buf).unwrap();
    general_purpose::STANDARD.encode(&buf)
}