signPeerMessage method
Signs a message using the peer's master signing key. The peer's signing key is always regenerated on the fly from the peer's secret mnemonic.
Implementation
Future<String> signPeerMessage(String mnemonic, String message) async {
final keyPair = await _generatePeerKeyPair(mnemonic);
final sig = await _algorithm.signString(message, keyPair: keyPair);
return base64Encode(sig.bytes);
}