Files
filou/keys/encoding.go
T
2014-10-24 20:03:41 -04:00

100 lines
2.3 KiB
Go

package keys
import (
"encoding/json"
"errors"
"fmt"
"math/big"
)
// All the method to encode/decode keys to json, yaml...
type encodingRSAKey struct {
N string
P string
Q string
D string
E int
}
func (this *encodingRSAKey) CreateFromRSAPrivateKey(key *RSAPrivateKey) *encodingRSAKey {
this.N = fmt.Sprintf("%x", key.N)
this.P = fmt.Sprintf("%x", key.P)
this.Q = fmt.Sprintf("%x", key.Q)
this.D = fmt.Sprintf("%x", key.D)
this.E = key.E
return this
}
func (this *encodingRSAKey) CreateFromRSAPublicKey(key *RSAPublicKey) *encodingRSAKey {
this.N = fmt.Sprintf("%x", key.N)
this.E = key.E
return this
}
func (this *encodingRSAKey) SetRSAPrivateKey(key *RSAPrivateKey) (*RSAPrivateKey, error) {
if i, ok := new(big.Int).SetString(this.N, 16); !ok {
return nil, errors.New("cannot parse string has hexadecimal string")
} else {
key.N = i
}
if i, ok := new(big.Int).SetString(this.P, 16); !ok {
return nil, errors.New("cannot parse string has hexadecimal string")
} else {
key.P = i
}
if i, ok := new(big.Int).SetString(this.Q, 16); !ok {
return nil, errors.New("cannot parse string has hexadecimal string")
} else {
key.Q = i
}
if i, ok := new(big.Int).SetString(this.D, 16); !ok {
return nil, errors.New("cannot parse string has hexadecimal string")
} else {
key.D = i
}
key.E = this.E
return key, nil
}
func (this *encodingRSAKey) SetRSAPublicKey(key *RSAPublicKey) (*RSAPublicKey, error) {
if i, ok := new(big.Int).SetString(this.N, 16); !ok {
return nil, errors.New("cannot parse string has hexadecimal string")
} else {
key.N = i
}
key.E = this.E
return key, nil
}
func (this *RSAPrivateKey) MarshalJSON() ([]byte, error) {
e := new(encodingRSAKey)
return json.Marshal(e.CreateFromRSAPrivateKey(this))
}
func (this *RSAPrivateKey) UnmarshalJSON(data []byte) error {
obj := new(encodingRSAKey)
if err := json.Unmarshal(data, obj); err != nil {
return err
}
_, err := obj.SetRSAPrivateKey(this)
return err
}
func (this *RSAPublicKey) MarshalJSON() ([]byte, error) {
e := new(encodingRSAKey)
return json.Marshal(e.CreateFromRSAPublicKey(this))
}
func (this *RSAPublicKey) UnmarshalJSON(data []byte) error {
obj := new(encodingRSAKey)
if err := json.Unmarshal(data, obj); err != nil {
return err
}
_, err := obj.SetRSAPublicKey(this)
return err
}