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keystore.go
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keystore.go
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package types
import (
"encoding/json"
"fmt"
"github.com/filecoin-project/go-state-types/crypto"
)
var (
ErrKeyInfoNotFound = fmt.Errorf("key info not found")
ErrKeyExists = fmt.Errorf("key already exists")
)
// KeyType defines a type of a key
type KeyType string
func (kt *KeyType) UnmarshalJSON(bb []byte) error {
{
// first option, try unmarshaling as string
var s string
err := json.Unmarshal(bb, &s)
if err == nil {
*kt = KeyType(s)
return nil
}
}
{
var b byte
err := json.Unmarshal(bb, &b)
if err != nil {
return fmt.Errorf("could not unmarshal KeyType either as string nor integer: %w", err)
}
bst := crypto.SigType(b)
switch bst {
case crypto.SigTypeBLS:
*kt = KTBLS
case crypto.SigTypeSecp256k1:
*kt = KTSecp256k1
case crypto.SigTypeDelegated:
*kt = KTDelegated
default:
return fmt.Errorf("unknown sigtype: %d", bst)
}
log.Warnf("deprecation: integer style 'KeyType' is deprecated, switch to string style")
return nil
}
}
const (
KTBLS KeyType = "bls"
KTSecp256k1 KeyType = "secp256k1"
KTSecp256k1Ledger KeyType = "secp256k1-ledger"
KTDelegated KeyType = "delegated"
)
// KeyInfo is used for storing keys in KeyStore
type KeyInfo struct {
Type KeyType
PrivateKey []byte
}
// KeyStore is used for storing secret keys
type KeyStore interface {
// List lists all the keys stored in the KeyStore
List() ([]string, error)
// Get gets a key out of keystore and returns KeyInfo corresponding to named key
Get(string) (KeyInfo, error)
// Put saves a key info under given name
Put(string, KeyInfo) error
// Delete removes a key from keystore
Delete(string) error
}