Dart

Load a Raw Ed25519 Public Key

Demonstrates the Chilkat PublicKey.LoadEd25519 method, which loads a raw Ed25519 public key from a hexadecimal string. The only argument must be exactly 64 hexadecimal characters (32 bytes).

Background: An Ed25519 public key is simply a fixed 32-byte value, so raw hex is a natural way to carry it — no ASN.1 container required. This loader takes those bytes directly, which is useful when a key comes from a system that emits raw values rather than a PEM or JWK. For a standard container, use LoadFromString or one of the DER/PEM loaders instead.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the PublicKey.LoadEd25519 method, which loads a raw Ed25519 public key from a
  // hexadecimal string.  The only argument must be exactly 64 hexadecimal characters (32 bytes).

  final pubKey = CkPublicKey();

  // The 32-byte Ed25519 public key as 64 hex digits.
  final pubKeyHex = 'd75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a';

  try {
    pubKey.loadEd25519(pubKeyHex);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Loaded an Ed25519 public key.');
}