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Remove FieldElement::from_square

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The new `FieldElement::from_u256` is sufficient to load an unreduced value. The
caller can perform the square themselves, without us explicitly supporting this
special case.

Updates the monero-oxide version used to one which no longer uses
`FieldElement::from_square` (as their use is why it was added).
This commit is contained in:
Luke Parker
2025-08-22 18:42:43 -04:00
parent 758d422595
commit da3095ed15
6 changed files with 43 additions and 31 deletions
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6
crypto/dalek-ff-group/src/field.rs
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@@ -230,12 +230,6 @@ impl FieldElement {
FieldElement(reduce(U512::from_le_bytes(value)))
}
/// Interpret the value as a little-endian integer, square it, and reduce it into a FieldElement.
pub fn from_square(value: [u8; 32]) -> FieldElement {
let value = U256::from_le_bytes(value);
FieldElement(reduce(U512::from(value.mul_wide(&value))))
}
/// Perform an exponentiation.
pub fn pow(&self, other: FieldElement) -> FieldElement {
let mut table = [FieldElement::ONE; 16];