Trait ToDer 

pub trait ToDer: DynTagged {
    // Required methods
    fn to_der_len(&self) -> Result<usize, Error>;
    fn write_der_header(
        &self,
        writer: &mut dyn Write,
    ) -> Result<usize, SerializeError>;
    fn write_der_content(
        &self,
        writer: &mut dyn Write,
    ) -> Result<usize, SerializeError>;

    // Provided methods
    fn to_der_vec(&self) -> Result<Vec<u8>, SerializeError> { ... }
    fn to_der_vec_raw(&self) -> Result<Vec<u8>, SerializeError> { ... }
    fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError> { ... }
    fn write_der_raw(
        &self,
        writer: &mut dyn Write,
    ) -> Result<usize, SerializeError> { ... }
}

Common trait for all objects that can be encoded using the DER representation

Examples

Objects from this crate can be encoded as DER:

use asn1_rs::{Integer, ToDer};

let int = Integer::from(4u32);
let mut writer = Vec::new();
let sz = int.write_der(&mut writer).expect("serialization failed");

assert_eq!(&writer, &[0x02, 0x01, 0x04]);

Many of the primitive types can also directly be encoded as DER:

use asn1_rs::ToDer;

let mut writer = Vec::new();
let sz = 4.write_der(&mut writer).expect("serialization failed");

assert_eq!(&writer, &[0x02, 0x01, 0x04]);

Required Methods

fn to_der_len(&self) -> Result<usize, Error>

Get the length of the object (including the header), when encoded

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Attempt to write the DER header to this writer.

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Attempt to write the DER content (all except header) to this writer.

Provided Methods

fn to_der_vec(&self) -> Result<Vec<u8>, SerializeError>

Write the DER encoded representation to a newly allocated Vec<u8>.

fn to_der_vec_raw(&self) -> Result<Vec<u8>, SerializeError>

Similar to using to_vec, but uses provided values without changes. This can generate an invalid encoding for a DER object.

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

Attempt to write the DER encoded representation (header and content) into this writer.

Examples

use asn1_rs::{Integer, ToDer};

let int = Integer::from(4u32);
let mut writer = Vec::new();
let sz = int.write_der(&mut writer).expect("serialization failed");

assert_eq!(&writer, &[0x02, 0x01, 0x04]);

fn write_der_raw(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

Similar to using to_der, but uses provided values without changes. This can generate an invalid encoding for a DER object.

Implementations on Foreign Types

impl ToDer for &str

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for &[u8]

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for (Class, bool, Tag)

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, _writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for bool

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for i8

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for i16

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for i32

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for i64

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for i128

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for u8

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for u16

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for u32

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for u64

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for u128

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl ToDer for ()

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, _writer: &mut dyn Write, ) -> Result<usize, SerializeError>

impl<'a, T> ToDer for &'a T

where T: ToDer, &'a T: DynTagged,

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Implementors

impl ToDer for Length

Available on crate feature std only.

impl ToDer for Real

Available on crate feature std only.

impl ToDer for Any<'_>

Available on crate feature std only.

impl ToDer for BitString<'_>

Available on crate feature std only.

impl ToDer for BmpString<'_>

Available on crate feature std only.

impl ToDer for Boolean

Available on crate feature std only.

impl ToDer for Enumerated

Available on crate feature std only.

impl ToDer for GeneralString<'_>

Available on crate feature std only.

impl ToDer for GeneralizedTime

Available on crate feature std only.

impl ToDer for GraphicString<'_>

Available on crate feature std only.

impl ToDer for Header<'_>

Available on crate feature std only.

impl ToDer for Ia5String<'_>

Available on crate feature std only.

impl ToDer for Integer<'_>

Available on crate feature std only.

impl ToDer for Null

Available on crate feature std only.

impl ToDer for NumericString<'_>

Available on crate feature std only.

impl ToDer for ObjectDescriptor<'_>

Available on crate feature std only.

impl ToDer for OctetString<'_>

Available on crate feature std only.

impl ToDer for Oid<'_>

Available on crate feature std only.

impl ToDer for PrintableString<'_>

Available on crate feature std only.

impl ToDer for Sequence<'_>

Available on crate feature std only.

impl ToDer for Set<'_>

Available on crate feature std only.

impl ToDer for TeletexString<'_>

Available on crate feature std only.

impl ToDer for UniversalString<'_>

Available on crate feature std only.

impl ToDer for UtcTime

Available on crate feature std only.

impl ToDer for Utf8String<'_>

Available on crate feature std only.

impl ToDer for VideotexString<'_>

Available on crate feature std only.

impl ToDer for VisibleString<'_>

Available on crate feature std only.

impl ToDer for String

Available on crate feature std only.

impl<T> ToDer for Option<T>

where T: ToDer,

Available on crate feature std only.

impl<T> ToDer for HashSet<T>

where T: ToDer,

impl<T> ToDer for SequenceOf<T>

where T: ToDer,

Available on crate feature std only.

impl<T> ToDer for SetOf<T>

where T: ToDer,

Available on crate feature std only.

impl<T> ToDer for TaggedParser<'_, Explicit, T>

where T: ToDer,

Available on crate feature std only.

impl<T> ToDer for TaggedParser<'_, Implicit, T>

where T: ToDer,

Available on crate feature std only.

impl<T> ToDer for Vec<T>

where T: ToDer,

Available on crate feature std only.

impl<T> ToDer for BTreeSet<T>

where T: ToDer,

Available on crate feature std only.

impl<T, E, const CLASS: u8, const TAG: u32> ToDer for TaggedValue<T, E, Explicit, CLASS, TAG>

where T: ToDer,

Available on crate feature std only.

impl<T, E, const CLASS: u8, const TAG: u32> ToDer for TaggedValue<T, E, Implicit, CLASS, TAG>

where T: ToDer,

Available on crate feature std only.