31 lines
637 B
Go
31 lines
637 B
Go
|
package bcrypt
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/mainflux/mainflux/manager"
|
||
|
|
"golang.org/x/crypto/bcrypt"
|
||
|
|
)
|
||
|
|
|
||
|
|
const cost int = 10
|
||
|
|
|
||
|
|
var _ manager.Hasher = (*bcryptHasher)(nil)
|
||
|
|
|
||
|
|
type bcryptHasher struct{}
|
||
|
|
|
||
|
|
// NewHasher instantiates a bcrypt-based hasher implementation.
|
||
|
|
func NewHasher() manager.Hasher {
|
||
|
|
return &bcryptHasher{}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (bh *bcryptHasher) Hash(pwd string) (string, error) {
|
||
|
|
hash, err := bcrypt.GenerateFromPassword([]byte(pwd), cost)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
|
||
|
|
return string(hash), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (bh *bcryptHasher) Compare(plain, hashed string) error {
|
||
|
|
return bcrypt.CompareHashAndPassword([]byte(hashed), []byte(plain))
|
||
|
|
}
|