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Safe compare password (timing attack) (#4064)

pull/3335/merge
Denis Denisov 2017-01-28 20:28:52 +02:00 committed by 无闻
parent 9144ea2b1d
commit 84f28fc5d6
1 changed files with 2 additions and 1 deletions
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3
models/user.go
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@ -8,6 +8,7 @@ import (
"bytes"
"container/list"
"crypto/sha256"
"crypto/subtle"
"encoding/hex"
"errors"
"fmt"
@ -324,7 +325,7 @@ func (u *User) EncodePasswd() {
func (u *User) ValidatePassword(passwd string) bool {
newUser := &User{Passwd: passwd, Salt: u.Salt}
newUser.EncodePasswd()
return u.Passwd == newUser.Passwd
return subtle.ConstantTimeCompare([]byte(u.Passwd), []byte(newUser.Passwd)) == 1
}
// UploadAvatar saves custom avatar for user.