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

use serde::{Deserialize, Serialize};

/// The number plaintexts in a plaintext list.
#[derive(Copy, Clone, Eq, PartialEq, Debug, Serialize, Deserialize)]
pub struct PlaintextCount(pub usize);

/// The number messages in a messages list.
#[derive(Copy, Clone, Eq, PartialEq, Debug, Serialize, Deserialize)]
pub struct CleartextCount(pub usize);

/// The number of ciphertexts in a ciphertext list.
#[derive(Copy, Clone, Eq, PartialEq, Debug, Serialize, Deserialize)]
pub struct CiphertextCount(pub usize);

/// The number of scalar in an LWE mask + 1 .
#[derive(Debug, PartialEq, Eq, Copy, Clone, Serialize, Deserialize)]
pub struct LweSize(pub usize);

impl LweSize {
    /// Returns the associated [`LweDimension`].
    pub fn to_lwe_dimension(&self) -> LweDimension {
        LweDimension(self.0 - 1)
    }
}

/// The number of scalar in an LWE mask, or the length of an LWE secret key.
#[derive(Copy, Clone, Eq, PartialEq, Debug, Serialize, Deserialize)]
pub struct LweDimension(pub usize);

impl LweDimension {
    /// Returns the associated [`LweSize`].
    pub fn to_lwe_size(&self) -> LweSize {
        LweSize(self.0 + 1)
    }
}

/// The number of polynomials of an GLWE mask + 1.
#[derive(Debug, PartialEq, Eq, Copy, Clone, Serialize, Deserialize)]
pub struct GlweSize(pub usize);

impl GlweSize {
    /// Returns the associated [`GlweDimension`].
    pub fn to_glwe_dimension(&self) -> GlweDimension {
        GlweDimension(self.0 - 1)
    }
}

/// The number of polynomials of an GLWE mask, or the size of an GLWE secret key.
#[derive(Copy, Clone, Eq, PartialEq, Debug, Serialize, Deserialize)]
pub struct GlweDimension(pub usize);

impl GlweDimension {
    /// Returns the associated [`GlweSize`].
    pub fn to_glwe_size(&self) -> GlweSize {
        GlweSize(self.0 + 1)
    }
}
/// The number of coefficients of a polynomial.
///
/// Assuming a polynomial $a_0 + a_1X + /dots + a_nX^N$, this returns $N+1$.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub struct PolynomialSize(pub usize);

/// The number of polynomials in a polynomial list.
///
/// Assuming a polynomial list, this return the number of polynomials.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct PolynomialCount(pub usize);

/// The logarithm of the base used in a decomposition.
///
/// When decomposing an integer over powers of the $2^B$ basis, this type represents the $B$ value.
#[derive(Debug, PartialEq, Eq, Copy, Clone, Deserialize, Serialize)]
pub struct DecompositionBaseLog(pub usize);

/// The number of levels used in a decomposition.
///
/// When decomposing an integer over the $l$ largest powers of the basis, this type represents
/// the $l$ value.
#[derive(Debug, PartialEq, Eq, Copy, Clone, Deserialize, Serialize)]
pub struct DecompositionLevelCount(pub usize);