arcis_compiler/core/
instruction.rs

1use crate::{
2    core::{
3        expressions::{domain::DomainElement, expr::EvalValue},
4        mxe_input::{ArxInput, MxeInput},
5        profile_circuit::{explain_circuit_depth, get_circuit_depth},
6    },
7    network_content::NetworkContent,
8    profile_info::ProfileInfo,
9    utils::{curve_point::CurvePoint, number::Number},
10    AsyncMPCCircuit,
11};
12use core_utils::circuit::mock_eval::MockRng;
13use ff::Field;
14use num_bigint::{BigUint, ToBigInt};
15use num_traits::Zero;
16use primitives::algebra::{
17    elliptic_curve::{BaseFieldElement, Curve, Point, Scalar},
18    field::subfield_element::Mersenne107Element,
19};
20use rand::Rng;
21use serde::{Deserialize, Serialize};
22
23struct MockEvalRng<'a, R: Rng + ?Sized> {
24    rng: &'a mut R,
25    bools: &'a [Option<bool>],
26}
27
28impl<'a, R: Rng + ?Sized> MockEvalRng<'a, R> {
29    pub fn new(rng: &'a mut R, bools: &'a [Option<bool>]) -> Self {
30        Self { rng, bools }
31    }
32}
33impl<'a, R: Rng + ?Sized> MockRng for MockEvalRng<'a, R> {
34    fn gen_bit(&mut self) -> bool {
35        if let Some(b) = self.bools.first() {
36            self.bools = &self.bools[1..];
37            if let Some(b) = b {
38                return *b;
39            }
40        }
41        self.rng.gen()
42    }
43
44    fn gen_da_bit(&mut self) -> bool {
45        self.rng.gen()
46    }
47
48    fn gen_scalar<C: Curve>(&mut self) -> Scalar<C> {
49        Scalar::<C>::random(&mut self.rng)
50    }
51
52    fn gen_base<C: Curve>(&mut self) -> BaseFieldElement<C> {
53        BaseFieldElement::<C>::random(&mut self.rng)
54    }
55
56    fn gen_mersenne(&mut self) -> Mersenne107Element {
57        Mersenne107Element::random(&mut self.rng)
58    }
59
60    fn gen_point<C: Curve>(&mut self) -> Point<C> {
61        self.rng.gen()
62    }
63}
64
65#[derive(Debug, Serialize, Deserialize)]
66pub struct ArcisInstruction {
67    pub circuit: AsyncMPCCircuit,
68    pub metadata: ArcisMetadata,
69}
70
71impl ArcisInstruction {
72    pub fn mock_eval_vec<R: Rng + ?Sized>(
73        &self,
74        inputs: Vec<EvalValue>,
75        output_domains: &[DomainElement<(), (), (), ()>],
76        bools: &[Option<bool>],
77        rng: &mut R,
78    ) -> Vec<EvalValue> {
79        let numbers: Vec<EvalValue> = self
80            .metadata
81            .input_order
82            .iter()
83            .map(|x| match *x {
84                ArcisInput::InputId(id) => inputs[id],
85                ArcisInput::Mxe(input) => input.mock_eval(),
86            })
87            .collect();
88
89        let v = numbers
90            .into_iter()
91            .map(|x| match x {
92                EvalValue::Bit(b) => BigUint::from(b),
93                EvalValue::Scalar(b) => BigUint::from_bytes_le(&b.to_le_bytes()),
94                EvalValue::Base(b) => BigUint::from_bytes_le(&b.to_le_bytes()),
95                EvalValue::Curve(b) => BigUint::from_bytes_le(&b.to_bytes()),
96            })
97            .collect();
98        let mut mock_rng = MockEvalRng::new(rng, bools);
99        let res = self.circuit.mock_eval_big_uint(v, &mut mock_rng);
100        std::iter::zip(output_domains, res)
101            .map(|(domain, x)| match domain {
102                DomainElement::Bit(_) => EvalValue::Bit(!x.is_zero()),
103                DomainElement::Scalar(_) => {
104                    EvalValue::Scalar(Number::from(x.to_bigint().unwrap()).into())
105                }
106                DomainElement::Base(_) => {
107                    EvalValue::Base(Number::from(x.to_bigint().unwrap()).into())
108                }
109                DomainElement::Curve(_) => {
110                    let mut bytes = x.to_bytes_le();
111                    bytes.resize(32, 0);
112                    EvalValue::Curve(
113                        CurvePoint::from_le_bytes(&bytes)
114                            .expect("Failed to convert to CurvePoint."),
115                    )
116                }
117            })
118            .collect()
119    }
120    pub fn network_depth(&self) -> usize {
121        get_circuit_depth(&self.circuit)
122    }
123    pub fn profile_info(&self) -> ProfileInfo {
124        let network_depth = self.network_depth();
125        let total_gates = self.circuit.ops_count() as usize;
126        let preprocessing = self.circuit.required_preprocessing();
127        let pre_process = (&preprocessing).into();
128        let network_content = NetworkContent::from_circuit(&self.circuit);
129        ProfileInfo {
130            network_depth,
131            total_gates,
132            network_content,
133            pre_process,
134        }
135    }
136    pub fn weight(&self) -> usize {
137        self.profile_info().weight()
138    }
139    #[allow(dead_code)]
140    pub fn explain_depth(&self) {
141        explain_circuit_depth(&self.circuit);
142    }
143}
144
145#[derive(Debug, Serialize, Deserialize, Default)]
146pub struct ArcisMetadata {
147    pub input_order: Vec<ArcisInput>,
148}
149
150#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
151pub enum ArcisInput {
152    InputId(usize),
153    Mxe(MxeInput),
154}
arcis_compiler/core/instruction.rs

arcis_compiler/core/
instruction.rs
