Enum Rule 

pub enum Rule {
    Value {
        attribute: Oid<'static>,
        field: &'static str,
    },
    Schema {
        code: ErrorCode,
        field: &'static str,
    },
    Missing(Oid<'static>),
    Forbidden(Oid<'static>),
    SigningCertificate,
    CredentialReferences(Oid<'static>),
    SignatureTimestamp,
    ArchiveTimestamp,
    Certificate,
    ContentType,
    DataTypeDescription,
    PolicyStore,
    Md5,
    ArchiveAlgorithm,
    SigningCertificateVersion,
    IssuerHint,
}

Format-specific findings preserve their cause instead of a blanket invalid.

Variants

Value

A present original value fails its attribute’s selected schema.

Fields

attribute: Oid<'static>

Original attribute type, not a guessed value interpretation.

field: &'static str

Field of the retained cause on the original property reading.

Schema

Existing CMS/ESS/CAdES schema diagnostic.

Fields

code: ErrorCode

Exact original CMS/encoding/PKIX diagnostic category.

field: &'static str

Original protocol field; the finding carries its source location.

Missing(Oid<'static>)

Mandatory original attribute is absent.

Forbidden(Oid<'static>)

This original attribute is forbidden or discouraged at the requested level; the finding severity distinguishes SHALL NOT from SHOULD NOT.

SigningCertificate

No signing-certificate protection service exists.

CredentialReferences(Oid<'static>)

Credential references lack this signer’s protected certified attribute or signed assertion (Table1 requirement n).

SignatureTimestamp

The requested level needs a root signature timestamp.

ArchiveTimestamp

The requested archival level needs a root ATSv3.

Certificate

A baseline original container needs the signer’s certificate.

ContentType

CMS content must be id-data for this root baseline signature.

DataTypeDescription

A data-type description is recommended, not mandatory.

PolicyStore

A written store lacks its protected, nonzero policy document digest.

Md5

Actual use of MD5 violates the format, independently of backend support.

ArchiveAlgorithm

Known archive-index and timestamp-imprint digest identities disagree (EN319122-1 §5.5.2); no provider or mathematical comparison is implied.

SigningCertificateVersion

A V2 certificate reference uses SHA-1 instead of a different hash.

IssuerHint

Optional issuerSerial hint SHOULD be omitted (§6.3(g)).

Trait Implementations

impl Debug for Rule

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

Formats the value using the given formatter.