Struct Ed25519Signer 

pub struct Ed25519Signer { /* private fields */ }

Ed25519 signer for Solana and other ed25519-based chains.

This signer wraps an Ed25519KeyPair and provides a high-level signing interface suitable for blockchain transactions.

Signature Format

Signatures are returned as 64 bytes: the standard ed25519 signature format.

Security

• The underlying key pair uses secure key material handling
• Uses ed25519-dalek for cryptographic operations

Example

use txgate_crypto::signer::{Signer, Ed25519Signer, Chain};

// Generate a new signer
let signer = Ed25519Signer::generate();

// Get the Solana address
let address = signer.address(Chain::Solana).expect("valid");
println!("Solana address: {address}");

// Sign a hash
let hash = [0u8; 32];
let signature = signer.sign(&hash).expect("signing failed");
assert_eq!(signature.len(), 64);

Implementations

impl Ed25519Signer

pub fn new(key_pair: Ed25519KeyPair) -> Self

Create a new signer from a key pair.

Arguments

• key_pair - The ed25519 key pair to use for signing.

Example

use txgate_crypto::keypair::{KeyPair, Ed25519KeyPair};
use txgate_crypto::signer::Ed25519Signer;

let key_pair = Ed25519KeyPair::generate();
let signer = Ed25519Signer::new(key_pair);

pub fn generate() -> Self

Create a new signer with a randomly generated key.

Uses a cryptographically secure random number generator.

Example

use txgate_crypto::signer::Ed25519Signer;

let signer = Ed25519Signer::generate();

pub fn from_bytes(bytes: [u8; 32]) -> Result<Self, SignError>

Create a signer from raw secret key bytes.

Arguments

• bytes - The 32-byte secret key material.

Errors

Returns an error if the bytes don’t represent a valid ed25519 secret key.

Example

use txgate_crypto::signer::Ed25519Signer;

let secret = [0x42u8; 32];
let signer = Ed25519Signer::from_bytes(secret).expect("valid key");

pub const fn key_pair(&self) -> &Ed25519KeyPair

Get a reference to the underlying key pair.

This is useful when you need access to the full key pair functionality.

Trait Implementations

impl Debug for Ed25519Signer

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

Formats the value using the given formatter.

impl Signer for Ed25519Signer

fn sign(&self, hash: &[u8; 32]) -> Result<Vec<u8>, SignError>

Sign a 32-byte message hash.

fn public_key(&self) -> &[u8]

Get the public key bytes.

fn address(&self, chain: Chain) -> Result<String, SignError>

Derive the blockchain address for a specific chain.

fn curve(&self) -> CurveType

Get the curve type used by this signer.