threshold_crypto/src/error.rs

45 lines
1.2 KiB
Rust

//! Crypto errors.
use thiserror::Error;
/// A crypto error.
#[derive(Clone, Eq, PartialEq, Debug, Error)]
pub enum Error {
/// Not enough signature shares.
#[error("Not enough signature shares")]
NotEnoughShares,
/// Signature shares contain a duplicated index.
#[error("Signature shares contain a duplicated index")]
DuplicateEntry,
/// The degree is too high for the coefficients to be indexed by `usize`.
#[error("The degree is too high for the coefficients to be indexed by usize.")]
DegreeTooHigh,
}
/// A crypto result.
pub type Result<T> = ::std::result::Result<T, Error>;
#[cfg(test)]
mod tests {
use super::Error;
/// No-op function that compiles only if its argument is `Send + Sync`.
fn is_send_and_sync<T: Send + Sync>(_: T) {}
#[test]
fn errors_are_send_and_sync() {
is_send_and_sync(Error::NotEnoughShares);
}
}
/// An error reading a structure from an array of bytes.
#[derive(Clone, Eq, PartialEq, Debug, Error)]
pub enum FromBytesError {
/// Invalid representation
#[error("Invalid representation.")]
Invalid,
}
/// The result of attempting to read a structure from an array of bytes.
pub type FromBytesResult<T> = ::std::result::Result<T, FromBytesError>;