/
keypair.go
51 lines (44 loc) · 1.37 KB
/
keypair.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
// Package dsa provides dsa crypto related implementations.
package dsa
import "crypto/dsa"
// KeyPair is struct that provides key pair related methods.
type KeyPair struct {
privateKey PrivateKey
publicKey PublicKey
}
// Generate is to generate a key pair.
//
// ex) err := keyPair.Generate(crypto_dsa.L1024N160)
func (this *KeyPair) Generate(parameterSizes dsa.ParameterSizes) error {
if err := this.privateKey.SetSizes(parameterSizes); err != nil {
return err
} else {
this.publicKey = this.privateKey.GetPublicKey()
return nil
}
}
// Sign is create a signature for message.
//
// ex) signature, err := keyPair.Sign(message)
func (this *KeyPair) Sign(message string) (Signature, error) {
return this.privateKey.Sign(message)
}
// Verify is verifies the signature.
//
// ex) result := keyPair.Verify(message, signature)
func (this *KeyPair) Verify(message string, signature Signature) bool {
return this.publicKey.Verify(message, signature)
}
// GetKeyPair is to get a key pair.
//
// ex) privateKey, publicKey := keyPair.GetKeyPair()
func (this *KeyPair) GetKeyPair() (privateKey PrivateKey, publicKey PublicKey) {
return this.privateKey, this.publicKey
}
// SetKeyPair is to set a key pair.
//
// ex) keyPair.SetKeyPair(privateKey, publicKey)
func (this *KeyPair) SetKeyPair(privateKey PrivateKey, publicKey PublicKey) {
this.privateKey = privateKey
this.publicKey = publicKey
}