-
Notifications
You must be signed in to change notification settings - Fork 0
/
key.go
209 lines (165 loc) · 4.48 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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
package coreapi
import (
"context"
"crypto/rand"
"fmt"
"sort"
coreiface "github.com/ipfs/go-ipfs/core/coreapi/interface"
caopts "github.com/ipfs/go-ipfs/core/coreapi/interface/options"
ipfspath "github.com/ipfs/go-ipfs/path"
peer "gx/ipfs/QmZoWKhxUmZ2seW4BzX6fJkNR8hh9PsGModr7q171yq2SS/go-libp2p-peer"
crypto "gx/ipfs/QmaPbCnUMBohSGo3KnxEa2bHqyJVVeEEcwtqJAYxerieBo/go-libp2p-crypto"
)
type KeyAPI struct {
*CoreAPI
*caopts.KeyOptions
}
type key struct {
name string
peerId string
}
// Name returns the key name
func (k *key) Name() string {
return k.name
}
// Path returns the path of the key.
func (k *key) Path() coreiface.Path {
return &path{path: ipfspath.FromString(ipfspath.Join([]string{"/ipns", k.peerId}))}
}
// Generate generates new key, stores it in the keystore under the specified
// name and returns a base58 encoded multihash of its public key.
func (api *KeyAPI) Generate(ctx context.Context, name string, opts ...caopts.KeyGenerateOption) (coreiface.Key, error) {
options, err := caopts.KeyGenerateOptions(opts...)
if err != nil {
return nil, err
}
if name == "self" {
return nil, fmt.Errorf("cannot overwrite key with name 'self'")
}
_, err = api.node.Repo.Keystore().Get(name)
if err == nil {
return nil, fmt.Errorf("key with name '%s' already exists", name)
}
var sk crypto.PrivKey
var pk crypto.PubKey
switch options.Algorithm {
case "rsa":
if options.Size == -1 {
options.Size = caopts.DefaultRSALen
}
priv, pub, err := crypto.GenerateKeyPairWithReader(crypto.RSA, options.Size, rand.Reader)
if err != nil {
return nil, err
}
sk = priv
pk = pub
case "ed25519":
priv, pub, err := crypto.GenerateEd25519Key(rand.Reader)
if err != nil {
return nil, err
}
sk = priv
pk = pub
default:
return nil, fmt.Errorf("unrecognized key type: %s", options.Algorithm)
}
err = api.node.Repo.Keystore().Put(name, sk)
if err != nil {
return nil, err
}
pid, err := peer.IDFromPublicKey(pk)
if err != nil {
return nil, err
}
return &key{name, pid.Pretty()}, nil
}
// List returns a list keys stored in keystore.
func (api *KeyAPI) List(ctx context.Context) ([]coreiface.Key, error) {
keys, err := api.node.Repo.Keystore().List()
if err != nil {
return nil, err
}
sort.Strings(keys)
out := make([]coreiface.Key, len(keys)+1)
out[0] = &key{"self", api.node.Identity.Pretty()}
for n, k := range keys {
privKey, err := api.node.Repo.Keystore().Get(k)
if err != nil {
return nil, err
}
pubKey := privKey.GetPublic()
pid, err := peer.IDFromPublicKey(pubKey)
if err != nil {
return nil, err
}
out[n+1] = &key{k, pid.Pretty()}
}
return out, nil
}
// Rename renames `oldName` to `newName`. Returns the key and whether another
// key was overwritten, or an error.
func (api *KeyAPI) Rename(ctx context.Context, oldName string, newName string, opts ...caopts.KeyRenameOption) (coreiface.Key, bool, error) {
options, err := caopts.KeyRenameOptions(opts...)
if err != nil {
return nil, false, err
}
ks := api.node.Repo.Keystore()
if oldName == "self" {
return nil, false, fmt.Errorf("cannot rename key with name 'self'")
}
if newName == "self" {
return nil, false, fmt.Errorf("cannot overwrite key with name 'self'")
}
oldKey, err := ks.Get(oldName)
if err != nil {
return nil, false, fmt.Errorf("no key named %s was found", oldName)
}
pubKey := oldKey.GetPublic()
pid, err := peer.IDFromPublicKey(pubKey)
if err != nil {
return nil, false, err
}
overwrite := false
if options.Force {
exist, err := ks.Has(newName)
if err != nil {
return nil, false, err
}
if exist {
overwrite = true
err := ks.Delete(newName)
if err != nil {
return nil, false, err
}
}
}
err = ks.Put(newName, oldKey)
if err != nil {
return nil, false, err
}
return &key{newName, pid.Pretty()}, overwrite, ks.Delete(oldName)
}
// Remove removes keys from keystore. Returns ipns path of the removed key.
func (api *KeyAPI) Remove(ctx context.Context, name string) (coreiface.Path, error) {
ks := api.node.Repo.Keystore()
if name == "self" {
return nil, fmt.Errorf("cannot remove key with name 'self'")
}
removed, err := ks.Get(name)
if err != nil {
return nil, fmt.Errorf("no key named %s was found", name)
}
pubKey := removed.GetPublic()
pid, err := peer.IDFromPublicKey(pubKey)
if err != nil {
return nil, err
}
err = ks.Delete(name)
if err != nil {
return nil, err
}
return (&key{"", pid.Pretty()}).Path(), nil
}
func (api *KeyAPI) core() coreiface.CoreAPI {
return api.CoreAPI
}