forked from filecoin-project/lotus
/
key.go
90 lines (78 loc) · 1.85 KB
/
key.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
package wallet
import (
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/crypto"
"github.com/EpiK-Protocol/go-epik/chain/types"
"github.com/EpiK-Protocol/go-epik/lib/sigs"
)
func GenerateKey(typ types.KeyType) (*Key, error) {
ctyp := ActSigType(typ)
if ctyp == crypto.SigTypeUnknown {
return nil, xerrors.Errorf("unknown sig type: %s", typ)
}
pk, err := sigs.Generate(ctyp)
if err != nil {
return nil, err
}
ki := types.KeyInfo{
Type: typ,
PrivateKey: pk,
}
return NewKey(ki)
}
func GenerateKeyFromSeed(typ types.KeyType, seed []byte) (*Key, error) {
ctyp := ActSigType(typ)
if ctyp == crypto.SigTypeUnknown {
return nil, xerrors.Errorf("unknown sig type: %s", typ)
}
pk, err := sigs.GenerateFromSeed(ctyp, seed)
if err != nil {
return nil, err
}
ki := types.KeyInfo{
Type: typ,
PrivateKey: pk,
}
return NewKey(ki)
}
type Key struct {
types.KeyInfo
PublicKey []byte
Address address.Address
}
func NewKey(keyinfo types.KeyInfo) (*Key, error) {
k := &Key{
KeyInfo: keyinfo,
}
var err error
k.PublicKey, err = sigs.ToPublic(ActSigType(k.Type), k.PrivateKey)
if err != nil {
return nil, err
}
switch k.Type {
case types.KTSecp256k1:
k.Address, err = address.NewSecp256k1Address(k.PublicKey)
if err != nil {
return nil, xerrors.Errorf("converting Secp256k1 to address: %w", err)
}
case types.KTBLS:
k.Address, err = address.NewBLSAddress(k.PublicKey)
if err != nil {
return nil, xerrors.Errorf("converting BLS to address: %w", err)
}
default:
return nil, xerrors.Errorf("unsupported key type: %s", k.Type)
}
return k, nil
}
func ActSigType(typ types.KeyType) crypto.SigType {
switch typ {
case types.KTBLS:
return crypto.SigTypeBLS
case types.KTSecp256k1:
return crypto.SigTypeSecp256k1
default:
return crypto.SigTypeUnknown
}
}