Enum elliptic_curve::sec1::Tag

pub enum Tag {
    Identity,
    CompressedEvenY,
    CompressedOddY,
    Uncompressed,
    Compact,
}

Tag byte used by the Elliptic-Curve-Point-to-Octet-String encoding.

Variants

Identity

Identity point (0x00)

CompressedEvenY

Compressed point with even y-coordinate (0x02)

CompressedOddY

Compressed point with odd y-coordinate (0x03)

Uncompressed

Uncompressed point (0x04)

Compact

Compact point (0x05)

Implementations

impl Tag

pub fn from_u8(byte: u8) -> Result<Tag, Error>

Parse a tag value from a byte

pub fn is_compact(self) -> bool

Is this point compact?

pub fn is_compressed(self) -> bool

Is this point compressed?

pub fn is_identity(self) -> bool

Is this point the identity point?

pub fn message_len(self, field_element_size: usize) -> usize

Compute the expected total message length for a message prefixed with this tag (including the tag byte), given the field element size (in bytes) for a particular elliptic curve.

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Tag

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

Formats the value using the given formatter.

impl PartialEq<Tag> for Tag

fn eq(&self, other: &Tag) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Tag

impl Eq for Tag

impl StructuralEq for Tag

impl StructuralPartialEq for Tag