Enum VerifierError 

#[non_exhaustive]
pub enum VerifierError {
    InvalidSubstrateHeaderLength {
        actual: usize,
    },
    InvalidSubstrateHeaderHex(String),
    InvalidReceiptHeaderLength {
        actual: usize,
    },
    InvalidReceiptHeaderHex(String),
    UnsupportedReceiptVersion {
        actual: u8,
        expected: u8,
    },
    InvalidReceiptSize {
        actual: usize,
        expected: usize,
    },
    UnknownAlgorithmBits {
        flags: u8,
    },
    PublicKeysParse(String),
    PublicKeysBase64 {
        field: &'static str,
        detail: String,
    },
    UnknownAlgorithm(String),
}

Every way verification can fail to run.

A successful verify_structural call still returns a VerificationResult which itself may report failed checks — those are NOT VerifierErrors. This type is reserved for inputs that are malformed to the point where no verdict can be produced.

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.

InvalidSubstrateHeaderLength

The X-H33-Substrate header was not 64 hex characters.

Fields

actual: usize

Number of characters actually present in the header value.

InvalidSubstrateHeaderHex(String)

The X-H33-Substrate header contained invalid hex.

InvalidReceiptHeaderLength

The X-H33-Receipt header was not 84 hex characters.

Fields

actual: usize

Number of characters actually present in the header value.

InvalidReceiptHeaderHex(String)

The X-H33-Receipt header contained invalid hex.

UnsupportedReceiptVersion

The decoded receipt bytes had an unexpected version byte.

The expected version for this verifier build is RECEIPT_VERSION.

Fields

actual: u8

The version byte the receipt actually carried.

expected: u8

The version byte this verifier build understands.

InvalidReceiptSize

The decoded receipt bytes were not exactly 42 bytes.

Fields

actual: usize

Byte length the parser read.

expected: usize

Byte length the spec requires.

UnknownAlgorithmBits

The receipt’s algorithm flags byte had bits set that the verifier does not recognize. This can happen when a newer server adds a fourth signature family before the verifier crate catches up. Not fatal — the recognized families still verify — but the caller should know that the full algorithm set was not inspected.

Fields

flags: u8

The raw algorithm flags byte.

PublicKeysParse(String)

The public-keys JSON document could not be parsed.

PublicKeysBase64

A base64 value in the public-keys JSON could not be decoded.

Fields

field: &'static str

The JSON field the bad base64 was in.

detail: String

Human-readable decoder detail.

UnknownAlgorithm(String)

An unknown algorithm string appeared in X-H33-Algorithms. The verifier recognizes exactly these identifiers:

• ML-DSA-65 (Dilithium, NIST FIPS 204)
• FALCON-512
• SPHINCS+-SHA2-128f (SLH-DSA, NIST FIPS 205)

Trait Implementations

impl Debug for VerifierError

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

Formats the value using the given formatter.

impl Display for VerifierError

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

Formats the value using the given formatter.

impl Error for VerifierError

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 From<VerifierError> for Error

Available on crate feature std only.

fn from(e: VerifierError) -> Self

Converts to this type from the input type.