Struct asn1derpy::Der

pub struct Der<N>(_)
 where
    N: ArrayLength<u8>;

DER writer

Methods

impl<N: ArrayLength<u8>> Der<N>

pub fn new() -> Self

Create a new Der structure that writes values to the given buffer

pub fn into_inner(self) -> Bytes<N>

Return underlying buffer

pub fn raw_tlv(&mut self, tag: Tag, value: &[u8]) -> Result<(), ()>

Write an arbitrary tag-length-value

pub fn non_negative_integer(&mut self, integer: &[u8]) -> Result<(), ()>

Write the given input as integer.

Assumes input is the big-endian representation of a non-negative Integer

Not sure about good references, maybe: https://docs.microsoft.com/en-us/windows/win32/seccertenroll/about-integer

From: https://docs.rs/ecdsa/0.3.0/src/ecdsa/convert.rs.html#205-219 Compute ASN.1 DER encoded length for the provided scalar. The ASN.1 encoding is signed, so its leading bit must have value 0; it must also be of minimal length (so leading bytes of value 0 must be removed, except if that would contradict the rule about the sign bit).

pub fn sequence<F>(&mut self, f: F) -> Result<(), ()> where
    F: FnOnce(&mut Der<N>) -> Result<(), ()>, 

Write a SEQUENCE by passing in a handling function that writes to an intermediate Vec before writing the whole sequence to self.

Methods from Deref<Target = Bytes<N>>

pub fn insert_slice_at(&mut self, slice: &[u8], at: usize) -> Result<(), ()>

pub fn resize_default(&mut self, new_len: usize) -> Result<(), ()>

pub fn resize_to_capacity(&mut self)

Trait Implementations

impl<N: Debug> Debug for Der<N> where
    N: ArrayLength<u8>, 

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

Formats the value using the given formatter.

impl<N: ArrayLength<u8>> Default for Der<N>

fn default() -> Self

Returns the "default value" for a type.

impl<N: ArrayLength<u8>> Deref for Der<N>

type Target = Bytes<N>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<N: ArrayLength<u8>> DerefMut for Der<N>

fn deref_mut(&mut self) -> &mut Bytes<N>

Mutably dereferences the value.