70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package security
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"fmt"
|
|
|
|
"git.qowevisa.me/Qowevisa/gotell/errors"
|
|
"git.qowevisa.me/Qowevisa/gotell/types"
|
|
"golang.org/x/crypto/curve25519"
|
|
)
|
|
|
|
func generateKeyPair(cfg types.ECDHConfig) ([]byte, []byte, error) {
|
|
var private [32]byte
|
|
if _, err := rand.Read(private[:]); err != nil {
|
|
return nil, nil, errors.WrapErr("rand.Read", err)
|
|
}
|
|
|
|
public, err := curve25519.X25519(private[:], curve25519.Basepoint)
|
|
if err != nil {
|
|
return nil, nil, errors.WrapErr("curve25519.X25519", err)
|
|
}
|
|
|
|
return private[:], public, nil
|
|
}
|
|
|
|
type KeyPair struct {
|
|
baseName string
|
|
privateKey []byte
|
|
publicKey []byte
|
|
}
|
|
|
|
type Store struct {
|
|
Pairs map[string]KeyPair
|
|
}
|
|
|
|
func InitStorage() (*Store, error) {
|
|
err := initFS()
|
|
if err != nil {
|
|
return nil, errors.WrapErr("initFS", err)
|
|
}
|
|
var newStore Store
|
|
newStore.Pairs = make(map[string]KeyPair)
|
|
|
|
return &newStore, nil
|
|
}
|
|
|
|
func (s *Store) AddNewPair(name string, ecdhCfg types.ECDHConfig) error {
|
|
_, exists := s.Pairs[name]
|
|
if exists {
|
|
return errors.WrapErr(fmt.Sprintf("Store.Pairs[%s]", name), errors.ALREADY_SET)
|
|
}
|
|
fileExists, err := fs_checkIfPairExists(name)
|
|
if fileExists {
|
|
return errors.WrapErr(fmt.Sprintf("Store.Pairs[%s]. FS found but in store", name), errors.NOT_SET)
|
|
}
|
|
if err != nil {
|
|
return errors.WrapErr("fs_checkIfPairExists", err)
|
|
}
|
|
private, public, err := generateKeyPair(ecdhCfg)
|
|
if err != nil {
|
|
return errors.WrapErr("generateKeyPair", err)
|
|
}
|
|
s.Pairs[name] = KeyPair{
|
|
baseName: name,
|
|
privateKey: private,
|
|
publicKey: public,
|
|
}
|
|
return nil
|
|
}
|