1#![cfg_attr(not(feature = "std"), no_std)]
 2
 3#[macro_use]
 4extern crate bench_utils;
 5
 6#[macro_use]
 7extern crate derivative;
 8
 9#[macro_use]
10extern crate alloc;
11
12#[cfg(not(feature = "std"))]
13pub(crate) use alloc::{borrow::ToOwned, boxed::Box, vec::Vec};
14
15#[cfg(feature = "std")]
16pub(crate) use std::{borrow::ToOwned, boxed::Box, vec::Vec};
17
18pub mod commitment;
19pub mod crh;
20pub mod merkle_tree;
21pub mod nizk;
22pub mod prf;
23pub mod signature;
24
25pub use self::{
26    commitment::CommitmentScheme,
27    crh::FixedLengthCRH,
28    merkle_tree::{MerkleHashTree, MerkleTreePath},
29    nizk::NIZK,
30    prf::PRF,
31    signature::SignatureScheme,
32};
33
34#[cfg(feature = "r1cs")]
35pub use self::{
36    commitment::CommitmentGadget, crh::FixedLengthCRHGadget,
37    merkle_tree::constraints::MerkleTreePathGadget, nizk::NIZKVerifierGadget, prf::PRFGadget,
38    signature::SigRandomizePkGadget,
39};
40
41#[cfg(feature = "std")]
42pub type Error = Box<dyn std::error::Error>;
43
44#[cfg(not(feature = "std"))]
45pub type Error = Box<dyn algebra::Error>;
46
47#[derive(Debug)]
48pub enum CryptoError {
49    IncorrectInputLength(usize),
50    NotPrimeOrder,
51}
52
53impl core::fmt::Display for CryptoError {
54    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
55        let msg = match self {
56            CryptoError::IncorrectInputLength(len) => format!("input length is wrong: {}", len),
57            CryptoError::NotPrimeOrder => "element is not prime order".to_owned(),
58        };
59        write!(f, "{}", msg)
60    }
61}
62
63#[cfg(feature = "std")]
64impl std::error::Error for CryptoError {
65    #[inline]
66    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
67        None
68    }
69}
70
71#[cfg(not(feature = "std"))]
72impl algebra::Error for CryptoError {}