Enum Error 

#[non_exhaustive]
pub enum Error {
    MessageTooShort,
    NoTags,
    InvalidOffsets,
    MissingTag(u32),
    InvalidFieldSize(u32),
    InvalidPublicKeyEncoding,
    SignatureInvalid,
    DelegationNotValidAtMidpoint,
    InvalidMerklePathLength,
    MerkleRootMismatch,
    MerkleIndexOutOfBounds,
    BeforeFloor {
        candidate_secs: u64,
        floor_secs: u64,
    },
    NoValidResponses,
    ClockUnavailable(ClockError),
    RandomUnavailable,
}

Errors produced by this crate.

Deliberately structured (rather than string-based) so error paths never need to allocate.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MessageTooShort

The message was too short to contain a valid header.

NoTags

The message declared zero tags, which is not a valid Roughtime message.

InvalidOffsets

A tag offset was out of bounds, decreasing, or not a multiple of 4.

MissingTag(u32)

A required tag was missing from a parsed message.

InvalidFieldSize(u32)

A tag’s value had the wrong size for its expected type.

InvalidPublicKeyEncoding

A base64-encoded public key failed to decode.

SignatureInvalid

An Ed25519 signature failed to verify.

DelegationNotValidAtMidpoint

The delegated key’s validity interval (MINT..=MAXT) does not contain the response’s reported midpoint.

InvalidMerklePathLength

The Merkle inclusion proof’s PATH length was not a multiple of 32 bytes.

MerkleRootMismatch

The computed Merkle root did not match the server’s reported ROOT.

MerkleIndexOutOfBounds

The Merkle index was not fully consumed by the proof (index too large for the path depth).

BeforeFloor

A verified time was earlier than the crate’s anti-rollback floor.

Fields

candidate_secs: u64

The rejected candidate time, in Unix seconds.

floor_secs: u64

The effective anti-rollback floor, in Unix seconds.

NoValidResponses

No valid responses were received from any queried server.

ClockUnavailable(ClockError)

The system clock could not be read or set.

RandomUnavailable

A cryptographically secure random-number source was unavailable.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Error

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Error