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

use ark_relations::r1cs::{ConstraintSystemRef, SynthesisError};
use decaf377::r1cs::FqVar;
use poseidon_permutation::r1cs::InstanceVar;

use crate::Fq;

pub fn hash_1(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: FqVar,
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_1_PARAMS.clone(),
        cs.clone(),
        vec![domain_separator.clone(), value],
    ))
}

pub fn hash_2(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: (FqVar, FqVar),
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_2_PARAMS.clone(),
        cs.clone(),
        vec![domain_separator.clone(), value.0, value.1],
    ))
}

pub fn hash_3(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: (FqVar, FqVar, FqVar),
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_3_PARAMS.clone(),
        cs.clone(),
        vec![domain_separator.clone(), value.0, value.1, value.2],
    ))
}

pub fn hash_4(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: (FqVar, FqVar, FqVar, FqVar),
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_4_PARAMS.clone(),
        cs.clone(),
        vec![domain_separator.clone(), value.0, value.1, value.2, value.3],
    ))
}

pub fn hash_5(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: (FqVar, FqVar, FqVar, FqVar, FqVar),
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_5_PARAMS.clone(),
        cs.clone(),
        vec![
            domain_separator.clone(),
            value.0,
            value.1,
            value.2,
            value.3,
            value.4,
        ],
    ))
}

pub fn hash_6(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: (FqVar, FqVar, FqVar, FqVar, FqVar, FqVar),
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_6_PARAMS.clone(),
        cs.clone(),
        vec![
            domain_separator.clone(),
            value.0,
            value.1,
            value.2,
            value.3,
            value.4,
            value.5,
        ],
    ))
}

pub fn hash_7(
    cs: ConstraintSystemRef<Fq>,
    domain_separator: &FqVar,
    value: (FqVar, FqVar, FqVar, FqVar, FqVar, FqVar, FqVar),
) -> Result<FqVar, SynthesisError> {
    Ok(InstanceVar::n_to_1_fixed_hash(
        crate::RATE_7_PARAMS.clone(),
        cs.clone(),
        vec![
            domain_separator.clone(),
            value.0,
            value.1,
            value.2,
            value.3,
            value.4,
            value.5,
            value.6,
        ],
    ))
}