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Merge pull request #590 from dalek-cryptography/derive-license

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Fix licensing on -derive repo
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Michael Rosenberg 2023-10-31 11:35:38 -04:00 committed by GitHub
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2
.github/workflows/curve25519-dalek.yml vendored
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@ -127,7 +127,7 @@ jobs:
# This should automatically pick up the simd backend in a x86_64 runner
# It should pick AVX2 due to stable toolchain used since AVX512 requires nigthly
RUSTFLAGS: '-C target_feature=+avx2'
run: cargo test --no-default-features --features alloc,precomputed-tables,zeroize --target x86_64-unknown-linux-gnu
run: cargo test --no-default-features --features alloc,precomputed-tables,zeroize,group-bits --target x86_64-unknown-linux-gnu
msrv:
name: Current MSRV is 1.60.0

201
curve25519-dalek-derive/LICENSE-APACHE Normal file
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@ -0,0 +1,201 @@
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23
curve25519-dalek-derive/LICENSE-MIT Normal file
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@ -0,0 +1,23 @@
Permission is hereby granted, free of charge, to any
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4
curve25519-dalek-derive/README.md
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@ -186,8 +186,8 @@ fn entry_point() {
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or <http://www.apache.org/licenses/LICENSE-2.0>)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or <http://opensource.org/licenses/MIT>)
* Apache License, Version 2.0, [LICENSE-APACHE](LICENSE-APACHE)
* MIT license ([LICENSE-MIT](LICENSE-MIT))
at your option.

31
curve25519-dalek/src/field.rs
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@ -39,11 +39,6 @@ use crate::constants;
cfg_if! {
if #[cfg(curve25519_dalek_backend = "fiat")] {
#[cfg(curve25519_dalek_bits = "32")]
pub use backend::serial::fiat_u32::field::*;
#[cfg(curve25519_dalek_bits = "64")]
pub use backend::serial::fiat_u64::field::*;
/// A `FieldElement` represents an element of the field
/// \\( \mathbb Z / (2\^{255} - 19)\\).
///
@ -52,7 +47,7 @@ cfg_if! {
///
/// Using formally-verified field arithmetic from fiat-crypto.
#[cfg(curve25519_dalek_bits = "32")]
pub type FieldElement = backend::serial::fiat_u32::field::FieldElement2625;
pub(crate) type FieldElement = backend::serial::fiat_u32::field::FieldElement2625;
/// A `FieldElement` represents an element of the field
/// \\( \mathbb Z / (2\^{255} - 19)\\).
@ -62,25 +57,21 @@ cfg_if! {
///
/// Using formally-verified field arithmetic from fiat-crypto.
#[cfg(curve25519_dalek_bits = "64")]
pub type FieldElement = backend::serial::fiat_u64::field::FieldElement51;
pub(crate) type FieldElement = backend::serial::fiat_u64::field::FieldElement51;
} else if #[cfg(curve25519_dalek_bits = "64")] {
pub use crate::backend::serial::u64::field::*;
/// A `FieldElement` represents an element of the field
/// \\( \mathbb Z / (2\^{255} - 19)\\).
///
/// The `FieldElement` type is an alias for one of the platform-specific
/// implementations.
pub type FieldElement = backend::serial::u64::field::FieldElement51;
pub(crate) type FieldElement = backend::serial::u64::field::FieldElement51;
} else {
pub use backend::serial::u32::field::*;
/// A `FieldElement` represents an element of the field
/// \\( \mathbb Z / (2\^{255} - 19)\\).
///
/// The `FieldElement` type is an alias for one of the platform-specific
/// implementations.
pub type FieldElement = backend::serial::u32::field::FieldElement2625;
pub(crate) type FieldElement = backend::serial::u32::field::FieldElement2625;
}
}
@ -109,7 +100,7 @@ impl FieldElement {
/// # Return
///
/// If negative, return `Choice(1)`. Otherwise, return `Choice(0)`.
pub fn is_negative(&self) -> Choice {
pub(crate) fn is_negative(&self) -> Choice {
let bytes = self.as_bytes();
(bytes[0] & 1).into()
}
@ -119,7 +110,7 @@ impl FieldElement {
/// # Return
///
/// If zero, return `Choice(1)`. Otherwise, return `Choice(0)`.
pub fn is_zero(&self) -> Choice {
pub(crate) fn is_zero(&self) -> Choice {
let zero = [0u8; 32];
let bytes = self.as_bytes();
@ -165,11 +156,11 @@ impl FieldElement {
(t19, t3)
}
/// Given a slice of public `FieldElements`, replace each with its inverse.
/// Given a slice of pub(crate)lic `FieldElements`, replace each with its inverse.
///
/// When an input `FieldElement` is zero, its value is unchanged.
#[cfg(feature = "alloc")]
pub fn batch_invert(inputs: &mut [FieldElement]) {
pub(crate) fn batch_invert(inputs: &mut [FieldElement]) {
// Montgomery’s Trick and Fast Implementation of Masked AES
// Genelle, Prouff and Quisquater
// Section 3.2
@ -214,7 +205,7 @@ impl FieldElement {
/// This function returns zero on input zero.
#[rustfmt::skip] // keep alignment of explanatory comments
#[allow(clippy::let_and_return)]
pub fn invert(&self) -> FieldElement {
pub(crate) fn invert(&self) -> FieldElement {
// The bits of p-2 = 2^255 -19 -2 are 11010111111...11.
//
// nonzero bits of exponent
@ -251,7 +242,7 @@ impl FieldElement {
/// - `(Choice(0), zero) ` if `v` is zero and `u` is nonzero;
/// - `(Choice(0), +sqrt(i*u/v))` if `u/v` is nonsquare (so `i*u/v` is square).
///
pub fn sqrt_ratio_i(u: &FieldElement, v: &FieldElement) -> (Choice, FieldElement) {
pub(crate) fn sqrt_ratio_i(u: &FieldElement, v: &FieldElement) -> (Choice, FieldElement) {
// Using the same trick as in ed25519 decoding, we merge the
// inversion, the square root, and the square test as follows.
//
@ -311,7 +302,7 @@ impl FieldElement {
/// - `(Choice(0), zero) ` if `self` is zero;
/// - `(Choice(0), +sqrt(i/self)) ` if `self` is a nonzero nonsquare;
///
pub fn invsqrt(&self) -> (Choice, FieldElement) {
pub(crate) fn invsqrt(&self) -> (Choice, FieldElement) {
FieldElement::sqrt_ratio_i(&FieldElement::ONE, self)
}
}