elliptic_curve/
error.rs

1//! Error type.
2
3use core::fmt::{self, Display};
4
5/// Result type with the `elliptic-curve` crate's [`Error`] type.
6pub type Result<T> = core::result::Result<T, Error>;
7
8/// Result type for [`DecodeError`].
9#[cfg(any(feature = "pkcs8", feature = "sec1"))]
10pub type DecodeResult<T> = core::result::Result<T, DecodeError>;
11
12/// Elliptic curve errors.
13#[derive(Copy, Clone, Debug, Eq, PartialEq)]
14pub struct Error;
15
16impl core::error::Error for Error {}
17
18impl Display for Error {
19    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
20        f.write_str("crypto error")
21    }
22}
23
24impl From<base16ct::Error> for Error {
25    fn from(_: base16ct::Error) -> Error {
26        Error
27    }
28}
29
30impl From<core::array::TryFromSliceError> for Error {
31    fn from(_: core::array::TryFromSliceError) -> Error {
32        Error
33    }
34}
35
36#[cfg(feature = "pkcs8")]
37impl From<pkcs8::Error> for Error {
38    fn from(_: pkcs8::Error) -> Error {
39        Error
40    }
41}
42
43#[cfg(feature = "sec1")]
44impl From<sec1::Error> for Error {
45    fn from(_: sec1::Error) -> Error {
46        Error
47    }
48}
49
50/// Decoding errors for elliptic curve keys.
51#[cfg(feature = "sec1")]
52#[derive(Debug, Copy, Clone, PartialEq, Eq)]
53#[non_exhaustive]
54pub enum DecodeError {
55    /// Invalid PEM.
56    #[cfg(feature = "pem")]
57    Pem(pem_rfc7468::Error),
58
59    /// Indicates invalid PKCS#8 EC key
60    #[cfg(feature = "pkcs8")]
61    Pkcs8(::pkcs8::Error),
62
63    /// Indicates invalid SEC1 EC key
64    Sec1(::sec1::Error),
65}
66
67#[cfg(feature = "pem")]
68impl From<pem_rfc7468::Error> for DecodeError {
69    #[inline(always)]
70    fn from(error: pem_rfc7468::Error) -> Self {
71        Self::Pem(error)
72    }
73}
74
75#[cfg(feature = "pkcs8")]
76impl From<::pkcs8::Error> for DecodeError {
77    #[inline(always)]
78    fn from(error: ::pkcs8::Error) -> Self {
79        Self::Pkcs8(error)
80    }
81}
82
83#[cfg(feature = "sec1")]
84impl From<::sec1::Error> for DecodeError {
85    #[inline(always)]
86    fn from(error: ::sec1::Error) -> Self {
87        Self::Sec1(error)
88    }
89}
90
91#[cfg(feature = "sec1")]
92impl Display for DecodeError {
93    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
94        match self {
95            #[cfg(feature = "pem")]
96            Self::Pem(error) => write!(fmt, "couldn't parse PEM: {error}"),
97            #[cfg(feature = "pkcs8")]
98            Self::Pkcs8(error) => write!(fmt, "couldn't parse PKCS#8 key: {error}"),
99            Self::Sec1(error) => write!(fmt, "couldn't parse SEC1 key: {error}"),
100        }
101    }
102}
103
104#[cfg(feature = "sec1")]
105impl core::error::Error for DecodeError {
106    fn source(&self) -> Option<&(dyn core::error::Error + 'static)> {
107        match self {
108            #[cfg(feature = "pem")]
109            Self::Pem(error) => Some(error),
110            #[cfg(feature = "pkcs8")]
111            Self::Pkcs8(error) => Some(error),
112            Self::Sec1(error) => Some(error),
113        }
114    }
115}
elliptic_curve/error.rs

elliptic_curve/
error.rs
