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Add no_std support to transcript, dalek-ff-group, ed448, ciphersuite, multiexp, schnorr, and monero-generators

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transcript, dalek-ff-group, ed449, and ciphersuite are all usable with no_std
alone. The rest additionally require alloc.

Part of #279.
This commit is contained in:
Luke Parker
2023-04-22 04:38:47 -04:00
parent ef0c901455
commit 1e448dec21
38 changed files with 445 additions and 76 deletions
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12
crypto/ciphersuite/src/lib.rs
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@@ -1,10 +1,10 @@
#![cfg_attr(docsrs, feature(doc_auto_cfg))]
#![cfg_attr(not(feature = "std"), no_std)]
#![doc = include_str!("lib.md")]
#![cfg_attr(not(feature = "std"), no_std)]
use core::fmt::Debug;
#[cfg(feature = "std")]
use std::io::{self, Read};
#[cfg(any(feature = "alloc", feature = "std"))]
use std_shims::io::{self, Read};
use rand_core::{RngCore, CryptoRng};
@@ -20,7 +20,7 @@ use group::{
Group, GroupOps,
prime::PrimeGroup,
};
#[cfg(feature = "std")]
#[cfg(any(feature = "alloc", feature = "std"))]
use group::GroupEncoding;
#[cfg(feature = "dalek")]
@@ -85,7 +85,7 @@ pub trait Ciphersuite:
}
/// Read a canonical scalar from something implementing std::io::Read.
#[cfg(feature = "std")]
#[cfg(any(feature = "alloc", feature = "std"))]
#[allow(non_snake_case)]
fn read_F<R: Read>(reader: &mut R) -> io::Result<Self::F> {
let mut encoding = <Self::F as PrimeField>::Repr::default();
@@ -99,7 +99,7 @@ pub trait Ciphersuite:
}
/// Read a canonical point from something implementing std::io::Read.
#[cfg(feature = "std")]
#[cfg(any(feature = "alloc", feature = "std"))]
#[allow(non_snake_case)]
fn read_G<R: Read>(reader: &mut R) -> io::Result<Self::G> {
let mut encoding = <Self::G as GroupEncoding>::Repr::default();