Fix CI and build for each feature (arkworks-rs#142)

* Fix build for different features with `no-std`

* Fix for constraints of each feature

* Fix CI

* Do a `cargo fmt`

* patch std

needed after arkworks-rs/algebra#811

Need to add Sync trait bounds on a few types

---------

Co-authored-by: mmagician <marcin.gorny.94@protonmail.com>

.github/workflows/ci.yml

@@ -118,5 +118,5 @@ jobs:
 
       - name: crypto-primitives
         run: |
-          cargo build --no-default-features --features=r1cs --target aarch64-unknown-none
-          cargo check --examples --no-default-features --features=r1cs --target aarch64-unknown-none
+          cargo build --no-default-features --features=r1cs,merkle_tree,prf,encryption,signature,snark --target aarch64-unknown-none
+          cargo check --all --no-default-features --features=r1cs,merkle_tree,prf,encryption,signature,snark --target aarch64-unknown-none

Cargo.toml

@@ -49,6 +49,7 @@ ark-ff = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-ec = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-poly = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-serialize = { git = "https://github.com/arkworks-rs/algebra/" }
+ark-std = { git = "https://github.com/arkworks-rs/std/" }
 
 ark-ed-on-bls12-377 = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-ed-on-bls12-381 = { git = "https://github.com/arkworks-rs/algebra/" }

crypto-primitives/Cargo.toml

@@ -33,6 +33,7 @@ ark-snark = { version = "^0.4.0", default-features = false }
 rayon = { version = "1.0", optional = true }
 derivative = { version = "2.0", features = ["use_core"] }
 tracing = { version = "0.1", default-features = false, features = [ "attributes" ], optional = true }
+hashbrown = { version = "^0.14", default-features = false, optional = true }
 
 [features]
 default = ["std"]
@@ -43,7 +44,7 @@ r1cs = [ "ark-r1cs-std", "tracing" ]
 crh = [ "sponge" ]
 sponge = []
 commitment = ["crh"]
-merkle_tree = ["crh"]
+merkle_tree = ["crh", "hashbrown"]
 encryption = []
 prf = []
 snark = []

crypto-primitives/src/commitment/pedersen/mod.rs

@@ -4,6 +4,8 @@ use ark_ff::{BitIteratorLE, Field, PrimeField, ToConstraintField};
 use ark_serialize::CanonicalSerialize;
 use ark_std::marker::PhantomData;
 use ark_std::rand::Rng;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use ark_std::UniformRand;
 
 use super::CommitmentScheme;

crypto-primitives/src/crh/bowe_hopwood/constraints.rs

@@ -10,6 +10,8 @@ use crate::crh::{
 use ark_ff::Field;
 use ark_r1cs_std::{groups::curves::twisted_edwards::AffineVar, prelude::*};
 use ark_relations::r1cs::{Namespace, SynthesisError};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 use crate::crh::bowe_hopwood::{TwoToOneCRH, CRH};
 

crypto-primitives/src/crh/bowe_hopwood/mod.rs

@@ -21,6 +21,8 @@ use ark_ff::fields::PrimeField;
 use ark_serialize::{CanonicalDeserialize, CanonicalSerialize};
 use ark_std::borrow::Borrow;
 use ark_std::cfg_chunks;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use ark_std::UniformRand;
 
 #[cfg(feature = "r1cs")]

crypto-primitives/src/crh/injective_map/mod.rs

@@ -1,5 +1,7 @@
 use crate::Error;
 use ark_std::rand::Rng;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use ark_std::{fmt::Debug, hash::Hash, marker::PhantomData};
 
 use super::{pedersen, CRHScheme, TwoToOneCRHScheme};

crypto-primitives/src/crh/mod.rs

@@ -29,7 +29,7 @@ pub trait CRHScheme {
         + Default
         + CanonicalSerialize
         + CanonicalDeserialize;
-    type Parameters: Clone + CanonicalSerialize + CanonicalDeserialize;
+    type Parameters: Clone + CanonicalSerialize + CanonicalDeserialize + Sync;
 
     fn setup<R: Rng>(r: &mut R) -> Result<Self::Parameters, Error>;
     fn evaluate<T: Borrow<Self::Input>>(
@@ -50,7 +50,7 @@ pub trait TwoToOneCRHScheme {
         + Default
         + CanonicalSerialize
         + CanonicalDeserialize;
-    type Parameters: Clone + CanonicalSerialize + CanonicalDeserialize;
+    type Parameters: Clone + CanonicalSerialize + CanonicalDeserialize + Sync;
 
     fn setup<R: Rng>(r: &mut R) -> Result<Self::Parameters, Error>;
 

crypto-primitives/src/crh/pedersen/constraints.rs

@@ -6,6 +6,8 @@ use ark_ec::CurveGroup;
 use ark_ff::Field;
 use ark_r1cs_std::prelude::*;
 use ark_relations::r1cs::{Namespace, SynthesisError};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 use crate::crh::pedersen::{TwoToOneCRH, CRH};
 use crate::crh::{CRHSchemeGadget, TwoToOneCRHSchemeGadget};

crypto-primitives/src/crh/pedersen/mod.rs

@@ -13,6 +13,8 @@ use ark_ff::{Field, ToConstraintField};
 use ark_serialize::{CanonicalDeserialize, CanonicalSerialize};
 use ark_std::borrow::Borrow;
 use ark_std::cfg_chunks;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 #[cfg(feature = "r1cs")]
 pub mod constraints;

crypto-primitives/src/crh/poseidon/constraints.rs

@@ -15,6 +15,8 @@ use ark_r1cs_std::R1CSVar;
 use ark_relations::r1cs::{Namespace, SynthesisError};
 use ark_std::borrow::Borrow;
 use ark_std::marker::PhantomData;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 #[derive(Clone)]
 pub struct CRHParametersVar<F: PrimeField + Absorb> {

crypto-primitives/src/crh/sha256/constraints.rs

@@ -19,6 +19,8 @@ use ark_r1cs_std::{
     R1CSVar,
 };
 use ark_relations::r1cs::{ConstraintSystemRef, Namespace, SynthesisError};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 const STATE_LEN: usize = 8;
 

crypto-primitives/src/crh/sha256/mod.rs

@@ -2,6 +2,8 @@ use crate::crh::{CRHScheme, TwoToOneCRHScheme};
 use crate::Error;
 
 use ark_std::rand::Rng;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 // Re-export the RustCrypto Sha256 type and its associated traits
 pub use sha2::{digest, Sha256};

crypto-primitives/src/encryption/elgamal/constraints.rs

@@ -11,6 +11,8 @@ use ark_ff::{
     Zero,
 };
 use ark_serialize::CanonicalSerialize;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use ark_std::{borrow::Borrow, marker::PhantomData};
 
 pub type ConstraintF<C> = <<C as CurveGroup>::BaseField as Field>::BasePrimeField;

crypto-primitives/src/merkle_tree/constraints.rs

@@ -6,6 +6,8 @@ use ark_r1cs_std::prelude::*;
 use ark_relations::r1cs::{Namespace, SynthesisError};
 use ark_std::borrow::Borrow;
 use ark_std::fmt::Debug;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 pub trait DigestVarConverter<From, To: ?Sized> {
     type TargetType: Borrow<To>;

crypto-primitives/src/merkle_tree/mod.rs

@@ -6,8 +6,11 @@ use crate::sponge::Absorb;
 use crate::{crh::CRHScheme, Error};
 use ark_serialize::{CanonicalDeserialize, CanonicalSerialize};
 use ark_std::borrow::Borrow;
-use ark_std::collections::{BTreeSet, HashMap};
+use ark_std::collections::BTreeSet;
 use ark_std::hash::Hash;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
+use hashbrown::HashMap;
 
 #[cfg(test)]
 mod tests;
@@ -65,7 +68,9 @@ pub trait Config {
         + Default
         + CanonicalSerialize
         + CanonicalDeserialize
-        + Send;
+        + Send
+        + Sync;
+
     // transition between leaf layer to inner layer
     type LeafInnerDigestConverter: DigestConverter<
         Self::LeafDigest,
@@ -80,6 +85,7 @@ pub trait Config {
         + CanonicalSerialize
         + CanonicalDeserialize
         + Send
+        + Sync
         + Absorb;
 
     // Tom's Note: in the future, if we want different hash function, we can simply add more

crypto-primitives/src/prf/blake2s/constraints.rs

@@ -3,6 +3,8 @@ use ark_relations::r1cs::{ConstraintSystemRef, Namespace, SynthesisError};
 
 use crate::prf::PRFGadget;
 use ark_r1cs_std::prelude::*;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 use core::borrow::Borrow;
 

crypto-primitives/src/prf/blake2s/mod.rs

@@ -1,3 +1,5 @@
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use blake2::{Blake2s256 as B2s, Blake2sMac};
 use digest::Digest;
 

crypto-primitives/src/prf/constraints.rs

@@ -5,6 +5,8 @@ use crate::prf::PRF;
 use ark_relations::r1cs::{Namespace, SynthesisError};
 
 use ark_r1cs_std::prelude::*;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 pub trait PRFGadget<P: PRF, F: Field> {
     type OutputVar: EqGadget<F>

crypto-primitives/src/signature/schnorr/constraints.rs

@@ -5,7 +5,9 @@ use ark_relations::r1cs::{Namespace, SynthesisError};
 
 use crate::signature::SigRandomizePkGadget;
 
-use core::{borrow::Borrow, marker::PhantomData};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
+use ark_std::{borrow::Borrow, marker::PhantomData};
 
 use crate::signature::schnorr::{Parameters, PublicKey, Schnorr};
 use digest::Digest;

crypto-primitives/src/signature/schnorr/mod.rs

@@ -7,6 +7,8 @@ use ark_ff::{
 use ark_serialize::CanonicalSerialize;
 use ark_std::ops::Mul;
 use ark_std::rand::Rng;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use ark_std::{hash::Hash, marker::PhantomData};
 use digest::Digest;
 

crypto-primitives/src/snark/constraints.rs

@@ -15,6 +15,8 @@ use ark_relations::{
     },
 };
 use ark_snark::{CircuitSpecificSetupSNARK, UniversalSetupSNARK, SNARK};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 use ark_std::{borrow::Borrow, fmt, marker::PhantomData, vec::IntoIter};
 
 /// This implements constraints for SNARK verifiers.

crypto-primitives/src/sponge/absorb.rs

@@ -7,6 +7,8 @@ use ark_ec::{
 use ark_ff::models::{Fp, FpConfig};
 use ark_ff::{BigInteger, Field, PrimeField, ToConstraintField};
 use ark_serialize::CanonicalSerialize;
+#[cfg(not(feature = "std"))]
+use ark_std::{string::String, vec::Vec};
 
 pub use ark_crypto_primitives_macros::*;
 

crypto-primitives/src/sponge/constraints/absorb.rs

@@ -13,6 +13,8 @@ use ark_r1cs_std::groups::curves::short_weierstrass::{
 use ark_r1cs_std::groups::curves::twisted_edwards::AffineVar as TEAffineVar;
 use ark_r1cs_std::uint8::UInt8;
 use ark_relations::r1cs::SynthesisError;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 /// An interface for objects that can be absorbed by a `CryptographicSpongeVar` whose constraint field
 /// is `CF`.

crypto-primitives/src/sponge/constraints/mod.rs

@@ -9,6 +9,8 @@ use ark_r1cs_std::uint8::UInt8;
 use ark_r1cs_std::R1CSVar;
 use ark_relations::lc;
 use ark_relations::r1cs::{ConstraintSystemRef, LinearCombination, SynthesisError};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 mod absorb;
 pub use absorb::*;

crypto-primitives/src/sponge/mod.rs

@@ -1,5 +1,6 @@
 use ark_ff::PrimeField;
-use ark_std::vec;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 /// Infrastructure for the constraints counterparts.
 #[cfg(feature = "r1cs")]

crypto-primitives/src/sponge/poseidon/constraints.rs

@@ -7,6 +7,8 @@ use ark_ff::PrimeField;
 use ark_r1cs_std::fields::fp::FpVar;
 use ark_r1cs_std::prelude::*;
 use ark_relations::r1cs::{ConstraintSystemRef, SynthesisError};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 #[derive(Clone)]
 /// the gadget for Poseidon sponge

crypto-primitives/src/sponge/poseidon/grain_lfsr.rs

@@ -1,6 +1,8 @@
 #![allow(dead_code)]
 
 use ark_ff::{BigInteger, PrimeField};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 pub struct PoseidonGrainLFSR {
     pub prime_num_bits: u64,

crypto-primitives/src/sponge/poseidon/mod.rs

@@ -5,6 +5,8 @@ use crate::sponge::{
 use ark_ff::{BigInteger, PrimeField};
 use ark_serialize::{CanonicalDeserialize, CanonicalSerialize};
 use ark_std::any::TypeId;
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 /// constraints for Poseidon
 #[cfg(feature = "r1cs")]

crypto-primitives/src/sponge/poseidon/traits.rs

@@ -1,6 +1,8 @@
 use crate::sponge::poseidon::grain_lfsr::PoseidonGrainLFSR;
 use crate::sponge::poseidon::PoseidonConfig;
 use ark_ff::{fields::models::*, PrimeField};
+#[cfg(not(feature = "std"))]
+use ark_std::vec::Vec;
 
 /// An entry in the default Poseidon parameters
 pub struct PoseidonDefaultConfigEntry {