Struct derp::Der

pub struct Der<'a, W: Write + 'a> { /* fields omitted */ }

Helper for writing DER that automattically encoes tags and content lengths.

Methods

impl<'a, W: Write> Der<'a, W>

fn new(writer: &'a mut W) -> Self

Create a new Der structure that writes values to the given writer.

fn null(&mut self) -> Result<()>

Write a NULL tag.

fn element(&mut self, tag: Tag, input: &[u8]) -> Result<()>

Write an arbitrary element.

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

Write the given input as an integer.

fn positive_integer(&mut self, input: &[u8]) -> Result<()>

Write the given input as a positive integer.

fn nested<F: FnOnce(&mut Der<Vec<u8>>) -> Result<()>>(
    &mut self,
    tag: Tag,
    func: F
) -> Result<()>

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

fn sequence<F: FnOnce(&mut Der<Vec<u8>>) -> Result<()>>(
    &mut self,
    func: F
) -> Result<()>

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

fn oid(&mut self, input: &[u8]) -> Result<()>

Write an OBJECT IDENTIFIER.

fn raw(&mut self, input: &[u8]) -> Result<()>

Write raw bytes to self. This does not calculate length or apply. This should only be used when you know you are dealing with bytes that are already DER encoded.

fn bit_string(&mut self, unused_bits: u8, bit_string: &[u8]) -> Result<()>

Write a BIT STRING.

fn octet_string(&mut self, octet_string: &[u8]) -> Result<()>

Write an OCTET STRING.