1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
//! Crypto errors.
use thiserror::Error;
/// A crypto error.
#[derive(Clone, PartialEq, Debug, Error)]
pub enum Error {
/// Not enough signature shares.
#[error("Not enough shares ({current}) for interpolation, needed: ({required})")]
NotEnoughShares {
/// Current number of signature shares
current: usize,
/// Required number of signature shares
required: usize,
},
/// Samples for interpolation contain a duplicated index.
#[error("Samples for interpolation 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,
/// An error reading a structure from an array of bytes. Invalid bytes representation.
#[error("Invalid bytes representation.")]
InvalidBytes,
/// The result of Hash To Field is zero which should never happen.
#[error("Hash To Field returned zero")]
HashToFieldIsZero,
/// An error converting to or from a hex representation of a key.
#[error("Failed to convert the key from hex")]
HexConversionFailed(#[from] hex::FromHexError),
}
/// 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::HashToFieldIsZero);
}
}