tor_cert/
err.rs

1//! Define error types for the tor-cert crate.
2//!
3//! Most of the encoding/decoding functions here return [`tor_bytes::Error`],
4//! but many of them (related to certificate-specific operations) do not.
5
6use thiserror::Error;
7
8/// An error related to checking or validating a certificate
9#[derive(Clone, Debug, Error, Eq, PartialEq)]
10#[non_exhaustive]
11pub enum CertError {
12    /// The key on a certificate was not as expected.
13    #[error("Key on certificate was not as expected")]
14    KeyMismatch,
15
16    /// We tried to get the signing key from a certificate that didn't include
17    /// one.
18    #[error("Missing signing key on certificate")]
19    MissingPubKey,
20
21    /// We tried to validate a signature, and found that it was wrong.
22    #[error("Signature on certificate was invalid")]
23    BadSignature,
24}
25
26/// An error related to signing or encoding a certificate
27#[cfg(feature = "encode")]
28#[derive(Clone, Debug, Error)]
29#[non_exhaustive]
30pub enum CertEncodeError {
31    /// This certificate contains the public key that it is supposed to
32    /// be signed by, and the provided signing private key isn't it.
33    #[error("Tried to sign with wrong key")]
34    KeyMismatch,
35
36    /// The certificate contains more than 255 extensions.
37    #[error("Too many extensions")]
38    TooManyExtensions,
39
40    /// Some extension had a length of over 2^16.
41    #[error("Extension too long")]
42    ExtensionTooLong,
43
44    /// A mandatory field was not provided.
45    #[error("Missing field {0:?}")]
46    MissingField(&'static str),
47
48    /// We encountered a problem when encoding the certificate: probably, that
49    /// some length field would have to be longer than its maximum.  This is
50    /// probably a bug in the calling code.
51    #[error("Tried to generate a cert we couldn't encode.")]
52    Bytes(#[from] tor_bytes::EncodeError),
53}
tor_cert/err.rs

tor_cert/
err.rs
