-
Notifications
You must be signed in to change notification settings - Fork 30
/
nkeys.go
100 lines (88 loc) · 3.12 KB
/
nkeys.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
// Copyright 2018-2019 The NATS Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package nkeys is an Ed25519 based public-key signature system that simplifies keys and seeds
// and performs signing and verification.
// It also supports encryption via x25519 keys and is compatible with https://pkg.go.dev/golang.org/x/crypto/nacl/box.
package nkeys
import "io"
// Version is our current version
const Version = "0.4.5"
// KeyPair provides the central interface to nkeys.
type KeyPair interface {
Seed() ([]byte, error)
PublicKey() (string, error)
PrivateKey() ([]byte, error)
// Sign is only supported on Non CurveKeyPairs
Sign(input []byte) ([]byte, error)
// Verify is only supported on Non CurveKeyPairs
Verify(input []byte, sig []byte) error
Wipe()
// Seal is only supported on CurveKeyPair
Seal(input []byte, recipient string) ([]byte, error)
// SealWithRand is only supported on CurveKeyPair
SealWithRand(input []byte, recipient string, rr io.Reader) ([]byte, error)
// Open is only supported on CurveKey
Open(input []byte, sender string) ([]byte, error)
}
// CreateUser will create a User typed KeyPair.
func CreateUser() (KeyPair, error) {
return CreatePair(PrefixByteUser)
}
// CreateAccount will create an Account typed KeyPair.
func CreateAccount() (KeyPair, error) {
return CreatePair(PrefixByteAccount)
}
// CreateServer will create a Server typed KeyPair.
func CreateServer() (KeyPair, error) {
return CreatePair(PrefixByteServer)
}
// CreateCluster will create a Cluster typed KeyPair.
func CreateCluster() (KeyPair, error) {
return CreatePair(PrefixByteCluster)
}
// CreateOperator will create an Operator typed KeyPair.
func CreateOperator() (KeyPair, error) {
return CreatePair(PrefixByteOperator)
}
// FromPublicKey will create a KeyPair capable of verifying signatures.
func FromPublicKey(public string) (KeyPair, error) {
raw, err := decode([]byte(public))
if err != nil {
return nil, err
}
pre := PrefixByte(raw[0])
if err := checkValidPublicPrefixByte(pre); err != nil {
return nil, ErrInvalidPublicKey
}
return &pub{pre, raw[1:]}, nil
}
// FromSeed will create a KeyPair capable of signing and verifying signatures.
func FromSeed(seed []byte) (KeyPair, error) {
prefix, _, err := DecodeSeed(seed)
if err != nil {
return nil, err
}
if prefix == PrefixByteCurve {
return FromCurveSeed(seed)
}
copy := append([]byte{}, seed...)
return &kp{copy}, nil
}
// FromRawSeed will create a KeyPair from the raw 32 byte seed for a given type.
func FromRawSeed(prefix PrefixByte, rawSeed []byte) (KeyPair, error) {
seed, err := EncodeSeed(prefix, rawSeed)
if err != nil {
return nil, err
}
return &kp{seed}, nil
}