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Make tripleDH manipulate GenericArray<u8, N> over Vec<u8>

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upgrade some of the structure contents of the KE types
This commit is contained in:
François Garillot
2020-09-19 19:16:28 -04:00
parent 84cc0e9b72
commit 3c555e82ae
5 changed files with 76 additions and 114 deletions
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src/keypair.rs
-29
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@@ -91,35 +91,6 @@ trait KeyPairExt: KeyPair + Debug {
#[cfg(test)]
impl<KP> KeyPairExt for KP where KP: KeyPair + Debug {}
/// This assumes you have defined:
/// - an `impl TryFrom<&[u8b], Error = InternalPakeError>` for a non-generic `T`
/// - an `fn to_bytes(&self) -> Vec<u8>` in an `impl T` block
/// and it both of the above to produce a sensible SizedBytes implementation
///
/// Because SizedBytes has a strong notion of size, and TryFrom/to_bytes does
/// not, it's better to use the macro below rather than this one, where possible.
#[macro_export]
macro_rules! sized_bytes_using_constant_and_try_from {
($sized_type: ident, $len: ident) => {
impl SizedBytes for $sized_type {
type Len = $len;
fn to_arr(&self) -> generic_array::GenericArray<u8, Self::Len> {
generic_array::GenericArray::clone_from_slice(&self.to_bytes())
}
fn from_bytes(bytes: &[u8]) -> Result<Self, InternalPakeError> {
let checked_bytes = check_slice_size(
bytes,
<Self::Len as generic_array::typenum::Unsigned>::to_usize(),
"bytes",
)?;
std::convert::TryFrom::try_from(checked_bytes.to_vec())
}
}
};
}
/// This assumes you have defined a SizedBytes instance for a `T`, and defines:
/// - an `impl TryFrom<&[u8b], Error = InternalPakeError>` for a non-generic `T`
/// - an `fn to_bytes(&self) -> Vec<u8>` in an `impl T` block