Imports github.com/btcsuite/btcd/btcec/v2 github.com/btcsuite/btcd/btcec/v2/ecdsa github.com/dchest/blake2b github.com/decred/dcrd/dcrec/secp256k1/v4 github.com/fxamacker/cbor github.com/okx/go-wallet-sdk/util Standard library imports bytes crypto/ecdsa crypto/elliptic crypto/rand encoding/base32 encoding/binary encoding/hex encoding/json errors fmt math/big math/bits strconv strings