TrustKey.fromJson constructor

TrustKey.fromJson(Map value)

Implementation

factory TrustKey.fromJson(Map value) {
  final encoded = value['publicKey'];
  if (encoded is! String) {
    throw const FormatException('Trust key publicKey missing');
  }
  final bytes = base64Decode(encoded);
  if (bytes.length != 32 || value['algorithm'] != 'Ed25519') {
    throw const FormatException('Invalid Ed25519 trust key');
  }
  final expected = 'sha256:${sha256.convert(bytes)}';
  if (value['fingerprint'] != expected) {
    throw const FormatException('Trust key fingerprint mismatch');
  }
  final status = value['status'];
  if (status != 'active' && status != 'revoked') {
    throw const FormatException('Invalid trust key status');
  }
  return TrustKey(
    signerId: value['signerId'] as String,
    keyId: value['keyId'] as String,
    algorithm: value['algorithm'] as String,
    publicKey: bytes,
    fingerprint: value['fingerprint'] as String,
    usages: (value['usages'] as List? ?? const [])
        .whereType<String>()
        .toSet(),
    status: status as String,
  );
}