mirror of
https://gogs.blitter.com/RLabs/xs
synced 2024-08-14 10:26:42 +00:00
f5be3578a8
2/3 Added vendor/ dir to lock down dependent pkg versions.
The author of git.schwanenlied.me/yawning/{chacha20,newhope,kyber}.git has copied
their repos to gitlab.com/yawning/ but some imports of chacha20 from newhope still
inconsistently refer to git.schwanenlied.me/, breaking build.
Licenses for chacha20 also changed from CC0 to AGPL, which may or may not be an
issue. Until the two aforementioned issues are resolved, locking to last-good
versions is probably the best way forward for now.
To build with vendored deps, use make VENDOR=1 clean all
3/3 Moved body of CI push script into bacillus/
94 lines
2.3 KiB
Go
94 lines
2.3 KiB
Go
// Package pbkdf2 implements a modular crypt format for PBKDF2-SHA1,
|
|
// PBKDF2-SHA256 and PBKDF-SHA512.
|
|
//
|
|
// The format is the same as that used by Python's passlib and is compatible.
|
|
package pbkdf2
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"crypto/sha1"
|
|
"crypto/sha256"
|
|
"crypto/sha512"
|
|
"fmt"
|
|
"gopkg.in/hlandau/passlib.v1/abstract"
|
|
"gopkg.in/hlandau/passlib.v1/hash/pbkdf2/raw"
|
|
"hash"
|
|
"strings"
|
|
)
|
|
|
|
// An implementation of Scheme implementing a number of PBKDF2 modular crypt
|
|
// formats used by Python's passlib ($pbkdf2$, $pbkdf2-sha256$,
|
|
// $pbkdf2-sha512$).
|
|
//
|
|
// Uses RecommendedRounds.
|
|
//
|
|
// WARNING: SHA1 should not be used for new applications under any
|
|
// circumstances. It should be used for legacy compatibility only.
|
|
var SHA1Crypter abstract.Scheme
|
|
var SHA256Crypter abstract.Scheme
|
|
var SHA512Crypter abstract.Scheme
|
|
|
|
const (
|
|
RecommendedRoundsSHA1 = 131000
|
|
RecommendedRoundsSHA256 = 29000
|
|
RecommendedRoundsSHA512 = 25000
|
|
)
|
|
|
|
const SaltLength = 16
|
|
|
|
func init() {
|
|
SHA1Crypter = New("$pbkdf2$", sha1.New, RecommendedRoundsSHA1)
|
|
SHA256Crypter = New("$pbkdf2-sha256$", sha256.New, RecommendedRoundsSHA256)
|
|
SHA512Crypter = New("$pbkdf2-sha512$", sha512.New, RecommendedRoundsSHA512)
|
|
}
|
|
|
|
type scheme struct {
|
|
Ident string
|
|
HashFunc func() hash.Hash
|
|
Rounds int
|
|
}
|
|
|
|
func New(ident string, hf func() hash.Hash, rounds int) abstract.Scheme {
|
|
return &scheme{
|
|
Ident: ident,
|
|
HashFunc: hf,
|
|
Rounds: rounds,
|
|
}
|
|
}
|
|
|
|
func (s *scheme) Hash(password string) (string, error) {
|
|
salt := make([]byte, SaltLength)
|
|
_, err := rand.Read(salt)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
hash := raw.Hash([]byte(password), salt, s.Rounds, s.HashFunc)
|
|
|
|
newHash := fmt.Sprintf("%s%d$%s$%s", s.Ident, s.Rounds, raw.Base64Encode(salt), hash)
|
|
return newHash, nil
|
|
}
|
|
|
|
func (s *scheme) Verify(password, stub string) (err error) {
|
|
_, rounds, salt, oldHash, err := raw.Parse(stub)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
newHash := raw.Hash([]byte(password), salt, rounds, s.HashFunc)
|
|
|
|
if len(newHash) == 0 || !abstract.SecureCompare(oldHash, newHash) {
|
|
err = abstract.ErrInvalidPassword
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func (s *scheme) SupportsStub(stub string) bool {
|
|
return strings.HasPrefix(stub, s.Ident)
|
|
}
|
|
|
|
func (s *scheme) NeedsUpdate(stub string) bool {
|
|
_, rounds, salt, _, err := raw.Parse(stub)
|
|
return err == raw.ErrInvalidRounds || rounds < s.Rounds || len(salt) < SaltLength
|
|
}
|