bc-components 0.31.1

Secure Components for Rust.
Documentation 
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use crate::{ECKey, ECUncompressedPublicKey};

/// A trait for elliptic curve public keys that can provide their uncompressed
/// form.
///
/// This trait extends `ECKey` to provide a method for obtaining the
/// uncompressed representation of a public key. Elliptic curve public keys can
/// be represented in both compressed (33 bytes) and uncompressed (65 bytes)
/// formats:
///
/// - Compressed format: Uses a single byte prefix (0x02 or 0x03) followed by
///   the x-coordinate (32 bytes), with the prefix indicating the parity of the
///   y-coordinate.
///
/// - Uncompressed format: Uses a byte prefix (0x04) followed by both x and y
///   coordinates (32 bytes each), for a total of 65 bytes.
///
/// The compressed format is more space-efficient and is recommended for most
/// applications, but some legacy systems require the uncompressed format.
pub trait ECPublicKeyBase: ECKey {
    /// Returns the uncompressed public key representation.
    fn uncompressed_public_key(&self) -> ECUncompressedPublicKey;
}