Struct Ed25519FileSigner 

pub struct Ed25519FileSigner { /* private fields */ }

Signs with an Ed25519 key loaded from a file on disk.

Two file formats are accepted:

1. Raw 32-byte seed — first 32 bytes of the file, any trailing bytes ignored. Useful for ad-hoc test keys.
2. Hex-encoded 32-byte seed — UTF-8 string, optionally 0x-prefixed, 64 hex characters.

Implementations

impl Ed25519FileSigner

pub fn from_seed(seed: [u8; 32]) -> Self

Construct from a raw 32-byte seed.

pub async fn load_from_file(path: impl AsRef<Path>) -> Result<Self, TaiError>

Load a key from a file. Accepts raw 32-byte seed OR a hex-encoded seed in UTF-8.

On Unix, warns to stderr if the file is readable by group or others (mode bits not in 0o600). The load still proceeds — refusing outright would be hostile to ad-hoc testing — but the warning gives the user a chance to fix it before signing anything that costs money.

pub fn public_key(&self) -> &VerifyingKey

Expose the public key (e.g., for diagnostics).

Trait Implementations

impl Signer for Ed25519FileSigner

fn address(&self) -> SuiAddress

The Sui address this signer authorizes for.

fn sign<'life0, 'life1, 'async_trait>( &'life0 self, digest: &'life1 [u8; 32], ) -> Pin<Box<dyn Future<Output = Result<SuiSignature, TaiError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Sign a 32-byte transaction digest.