Enum CmpMessageType 

pub enum CmpMessageType {
    Ir,
    Ip,
    Cr,
    Cp,
    Kur,
    Kup,
    Rr,
    Rp,
    GenM,
    GenP,
    Error,
    CertConf,
    PkiConf,
}

CMP message type, identified by the implicit tag on the PKIBody choice within PKIMessage (RFC 9810 §5.3).

Each variant corresponds to a specific CMP operation. Request types have matching response types (e.g., Ir → Ip).

Variants

Ir

Initialization request (tag 0) — new certificate enrollment with no prior credential.

Ip

Initialization response (tag 1).

Cr

Certification request (tag 2) — standard enrollment with an existing credential.

Cp

Certification response (tag 3).

Kur

Key update request (tag 7) — re-enrollment / key rollover.

Kup

Key update response (tag 8).

Rr

Revocation request (tag 11).

Rp

Revocation response (tag 12).

GenM

General message (tag 21) — CA information, supported algorithms.

GenP

General response (tag 22).

Error

Error message (tag 23).

CertConf

Certificate confirmation (tag 24).

PkiConf

PKI confirmation (tag 25).

Implementations

impl CmpMessageType

pub fn from_tag(tag: u8) -> Option<Self>

Map an ASN.1 implicit tag value to the corresponding message type.

RFC 9810 §5.3 defines the PKIBody CHOICE tags:

ir       [0]  CertReqMessages
ip       [1]  CertRepMessage
cr       [2]  CertReqMessages
cp       [3]  CertRepMessage
...
kur      [7]  CertReqMessages
kup      [8]  CertRepMessage
...
rr       [11] RevReqContent
rp       [12] RevRepContent
...
genm     [21] GenMsgContent
genp     [22] GenRepContent
error    [23] ErrorMsgContent
certConf [24] CertConfirmContent
pkiConf  [25] PKIConfirmContent

pub fn is_request(&self) -> bool

Returns true if this message type is a client request.

pub fn expected_response(&self) -> Option<Self>

Return the expected response type for a given request type.

Returns None for response types or types that do not expect a specific response (e.g., CertConf expects PkiConf, but error messages do not expect a response).

Trait Implementations

impl Clone for CmpMessageType

fn clone(&self) -> CmpMessageType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CmpMessageType

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

Formats the value using the given formatter.

impl Display for CmpMessageType

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

Formats the value using the given formatter.

impl PartialEq for CmpMessageType

fn eq(&self, other: &CmpMessageType) -> 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 Copy for CmpMessageType

impl Eq for CmpMessageType

impl StructuralPartialEq for CmpMessageType