summaryrefslogtreecommitdiffstats
path: root/vendor/hkdf/src/errors.rs
blob: e2109b47326cc0d9c2f2580745fb16a2784c394a (plain)
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
use core::fmt;

/// Error that is returned when supplied pseudorandom key (PRK) is not long enough.
#[derive(Copy, Clone, Debug)]
pub struct InvalidPrkLength;

impl fmt::Display for InvalidPrkLength {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
        f.write_str("invalid pseudorandom key length, too short")
    }
}

#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl ::std::error::Error for InvalidPrkLength {}

/// Structure for InvalidLength, used for output error handling.
#[derive(Copy, Clone, Debug)]
pub struct InvalidLength;

impl fmt::Display for InvalidLength {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
        f.write_str("invalid number of blocks, too large output")
    }
}

#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl ::std::error::Error for InvalidLength {}