75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
package wallet
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import (
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"golang.org/x/xerrors"
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"github.com/filecoin-project/go-address"
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"github.com/filecoin-project/go-state-types/crypto"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/lib/sigs"
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)
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func GenerateKey(typ types.KeyType) (*Key, error) {
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ctyp := ActSigType(typ)
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if ctyp == crypto.SigTypeUnknown {
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return nil, xerrors.Errorf("unknown sig type: %s", typ)
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}
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pk, err := sigs.Generate(ctyp)
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if err != nil {
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return nil, err
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}
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ki := types.KeyInfo{
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Type: typ,
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PrivateKey: pk,
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}
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return NewKey(ki)
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}
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type Key struct {
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types.KeyInfo
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PublicKey []byte
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Address address.Address
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}
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func NewKey(keyinfo types.KeyInfo) (*Key, error) {
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k := &Key{
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KeyInfo: keyinfo,
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}
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var err error
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k.PublicKey, err = sigs.ToPublic(ActSigType(k.Type), k.PrivateKey)
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if err != nil {
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return nil, err
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}
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switch k.Type {
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case types.KTSecp256k1:
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k.Address, err = address.NewSecp256k1Address(k.PublicKey)
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if err != nil {
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return nil, xerrors.Errorf("converting Secp256k1 to address: %w", err)
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}
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case types.KTBLS:
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k.Address, err = address.NewBLSAddress(k.PublicKey)
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if err != nil {
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return nil, xerrors.Errorf("converting BLS to address: %w", err)
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}
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default:
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return nil, xerrors.Errorf("unsupported key type: %s", k.Type)
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}
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return k, nil
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}
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func ActSigType(typ types.KeyType) crypto.SigType {
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switch typ {
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case types.KTBLS:
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return crypto.SigTypeBLS
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case types.KTSecp256k1:
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return crypto.SigTypeSecp256k1
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default:
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return crypto.SigTypeUnknown
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}
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}
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