package invoke import ( "bytes" "crypto/ecdsa" "github.com/nspcc-dev/neo-go/pkg/crypto/keys" crypto "github.com/nspcc-dev/neofs-crypto" "github.com/nspcc-dev/neofs-node/pkg/morph/client" ) // InnerRingIndex returns index of the `key` in the inner ring list from sidechain // along with total size of inner ring list. If key is not in the inner ring list, // then returns `-1` as index. func InnerRingIndex(cli *client.Client, key *ecdsa.PublicKey) (int32, int32, error) { if cli == nil { return 0, 0, client.ErrNilClient } innerRing, err := cli.NeoFSAlphabetList() if err != nil { return 0, 0, err } return keyPosition(key, innerRing), int32(len(innerRing)), nil } // keyPosition returns "-1" if key is not found in the list, otherwise returns // index of the key. func keyPosition(key *ecdsa.PublicKey, list keys.PublicKeys) (result int32) { result = -1 rawBytes := crypto.MarshalPublicKey(key) for i := range list { if bytes.Equal(list[i].Bytes(), rawBytes) { result = int32(i) break } } return result }