func (c *sha2Crypter) NeedsUpdate(stub string) bool {
_, salt, _, rounds, err := raw.Parse(stub)
if err != nil {
return false // ...
}
return c.needsUpdate(salt, rounds)
}
func (c *sha2Crypter) hash(password, stub string) (oldHash, newHash, salt string, rounds int, err error) {
isSHA512, salt, oldHash, rounds, err := raw.Parse(stub)
if err != nil {
return "", "", "", 0, err
}
if isSHA512 != c.sha512 {
return "", "", "", 0, errInvalidStub
}
if c.sha512 {
return oldHash, raw.Crypt512(password, salt, rounds), salt, rounds, nil
}
return oldHash, raw.Crypt256(password, salt, rounds), salt, rounds, nil
}