Struct CertChainRef 

pub struct CertChainRef<'a> { /* private fields */ }

Available on crate feature manifest only.

A reference to a byte slice that is expected to be a valid sequence of DER-encoded X.509 certificates.

This is used to store a chain of certificates in an Image4 manifests without actually parsing them. There are two reasons for this:

1. The library currently uses the x509_cert crate to decode the certificates and that means the original signed TBS certificates are lost when a manifest is decoded. Verifying the manifest’s certificate chain isn’t possible in that case.
2. Parsing the certificates requires processing time and memory. There is no reason to do this, for example, when all you want to do is to encode them back into DER and write to another file.

Implementations

impl<'a> CertChainRef<'a>

pub fn as_bytes(&self) -> &'a [u8]

Returns the contents of the body as a byte slice.

pub fn len(&self) -> Length

Returns the length of the body.

pub fn is_empty(&self) -> bool

Returns true if the body is empty.

impl CertChainRef<'_>

pub fn decode_body(&self) -> Result<Vec<Certificate>>

Available on crate feature x509-cert only.

Decodes the body as a vector of Certificates.

impl CertChainRef<'_>

pub fn iter(&self) -> CertIter<'_>

Returns iterator over individual certificates in the chain.

Trait Implementations

impl<'a> Clone for CertChainRef<'a>

fn clone(&self) -> CertChainRef<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for CertChainRef<'a>

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

Formats the value using the given formatter.

impl<'a> DecodeValue<'a> for CertChainRef<'a>

fn decode_value<R: Reader<'a>>(reader: &mut R, header: Header) -> Result<Self>

Attempt to decode this message using the provided Reader.

impl EncodeValue for CertChainRef<'_>

fn value_len(&self) -> Result<Length>

Compute the length of this value (sans [Tag]+Length header) when encoded as ASN.1 DER.

fn encode_value(&self, encoder: &mut impl Writer) -> Result<()>

Encode value (sans [Tag]+Length header) as ASN.1 DER using the provided Writer.

fn header(&self) -> Result<Header, Error>

where Self: Tagged,

Get the Header used to encode this value.

impl FixedTag for CertChainRef<'_>

const TAG: Tag = ::der::Tag::Sequence

ASN.1 tag

impl<'a> From<&'a CertChain> for CertChainRef<'a>

Available on crate feature alloc only.

fn from(value: &'a CertChain) -> Self

Converts to this type from the input type.

impl From<&CertChainRef<'_>> for CertChain

Available on crate feature alloc only.

fn from(value: &CertChainRef<'_>) -> Self

Converts to this type from the input type.

impl From<CertChainRef<'_>> for CertChain

Available on crate feature alloc only.

fn from(value: CertChainRef<'_>) -> Self

Converts to this type from the input type.

impl PartialEq for CertChainRef<'_>

fn eq(&self, other: &Self) -> 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<'a> RefToOwned<'a> for CertChainRef<'a>

Available on crate feature alloc only.

type Owned = CertChain

The resulting type after obtaining ownership.

fn ref_to_owned(&self) -> Self::Owned

Creates a new object taking ownership of the data

impl<'a> Eq for CertChainRef<'a>