mirror of https://github.com/go-gitea/gitea.git
EpicCoder
techknowlogick
parent
1b85b248e4
commit
8d9d6aa903
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@ -319,6 +319,8 @@ MIN_PASSWORD_LENGTH = 6
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IMPORT_LOCAL_PATHS = false
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; Set to true to prevent all users (including admin) from creating custom git hooks
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DISABLE_GIT_HOOKS = false
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; Password Hash algorithm, either "pbkdf2", "argon2", "scrypt" or "bcrypt"
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PASSWORD_HASH_ALGO = pbkdf2
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[openid]
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;
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@ -197,6 +197,7 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
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- `IMPORT_LOCAL_PATHS`: **false**: Set to `false` to prevent all users (including admin) from importing local path on server.
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- `INTERNAL_TOKEN`: **\<random at every install if no uri set\>**: Secret used to validate communication within Gitea binary.
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- `INTERNAL_TOKEN_URI`: **<empty>**: Instead of defining internal token in the configuration, this configuration option can be used to give Gitea a path to a file that contains the internal token (example value: `file:/etc/gitea/internal_token`)
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- `PASSWORD_HASH_ALGO`: **pbkdf2**: The hash algorithm to use \[pbkdf2, argon2, scrypt, bcrypt\].
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## OpenID (`openid`)
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@ -22,6 +22,7 @@ import (
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"code.gitea.io/gitea/modules/auth/oauth2"
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"code.gitea.io/gitea/modules/auth/pam"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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)
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@ -665,6 +666,15 @@ func UserSignIn(username, password string) (*User, error) {
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switch user.LoginType {
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case LoginNoType, LoginPlain, LoginOAuth2:
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if user.IsPasswordSet() && user.ValidatePassword(password) {
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// Update password hash if server password hash algorithm have changed
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if user.PasswdHashAlgo != setting.PasswordHashAlgo {
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user.HashPassword(password)
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if err := UpdateUserCols(user, "passwd", "passwd_hash_algo"); err != nil {
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return nil, err
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}
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}
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// WARN: DON'T check user.IsActive, that will be checked on reqSign so that
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// user could be hint to resend confirm email.
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if user.ProhibitLogin {
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@ -33,7 +33,10 @@ import (
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"github.com/Unknwon/com"
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"github.com/go-xorm/xorm"
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"golang.org/x/crypto/argon2"
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"golang.org/x/crypto/bcrypt"
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"golang.org/x/crypto/pbkdf2"
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"golang.org/x/crypto/scrypt"
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"golang.org/x/crypto/ssh"
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"xorm.io/builder"
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"xorm.io/core"
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@ -50,6 +53,13 @@ const (
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UserTypeOrganization
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)
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const (
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algoBcrypt = "bcrypt"
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algoScrypt = "scrypt"
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algoArgon2 = "argon2"
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algoPbkdf2 = "pbkdf2"
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)
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const syncExternalUsers = "sync_external_users"
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var (
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@ -82,6 +92,7 @@ type User struct {
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Email string `xorm:"NOT NULL"`
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KeepEmailPrivate bool
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Passwd string `xorm:"NOT NULL"`
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PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'pbkdf2'"`
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// MustChangePassword is an attribute that determines if a user
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// is to change his/her password after registration.
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@ -430,25 +441,48 @@ func (u *User) NewGitSig() *git.Signature {
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}
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}
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func hashPassword(passwd, salt string) string {
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tempPasswd := pbkdf2.Key([]byte(passwd), []byte(salt), 10000, 50, sha256.New)
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func hashPassword(passwd, salt, algo string) string {
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var tempPasswd []byte
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switch algo {
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case algoBcrypt:
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tempPasswd, _ = bcrypt.GenerateFromPassword([]byte(passwd), bcrypt.DefaultCost)
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return string(tempPasswd)
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case algoScrypt:
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tempPasswd, _ = scrypt.Key([]byte(passwd), []byte(salt), 65536, 16, 2, 50)
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case algoArgon2:
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tempPasswd = argon2.IDKey([]byte(passwd), []byte(salt), 2, 65536, 8, 50)
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case algoPbkdf2:
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fallthrough
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default:
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tempPasswd = pbkdf2.Key([]byte(passwd), []byte(salt), 10000, 50, sha256.New)
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}
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return fmt.Sprintf("%x", tempPasswd)
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}
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// HashPassword hashes a password using PBKDF.
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// HashPassword hashes a password using the algorithm defined in the config value of PASSWORD_HASH_ALGO.
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func (u *User) HashPassword(passwd string) {
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u.Passwd = hashPassword(passwd, u.Salt)
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u.PasswdHashAlgo = setting.PasswordHashAlgo
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u.Passwd = hashPassword(passwd, u.Salt, setting.PasswordHashAlgo)
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}
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// ValidatePassword checks if given password matches the one belongs to the user.
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func (u *User) ValidatePassword(passwd string) bool {
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tempHash := hashPassword(passwd, u.Salt)
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return subtle.ConstantTimeCompare([]byte(u.Passwd), []byte(tempHash)) == 1
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tempHash := hashPassword(passwd, u.Salt, u.PasswdHashAlgo)
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if u.PasswdHashAlgo != algoBcrypt && subtle.ConstantTimeCompare([]byte(u.Passwd), []byte(tempHash)) == 1 {
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return true
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}
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if u.PasswdHashAlgo == algoBcrypt && bcrypt.CompareHashAndPassword([]byte(u.Passwd), []byte(passwd)) == nil {
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return true
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}
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return false
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}
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// IsPasswordSet checks if the password is set or left empty
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func (u *User) IsPasswordSet() bool {
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return !u.ValidatePassword("")
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return len(u.Passwd) > 0
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}
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// UploadAvatar saves custom avatar for user.
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@ -147,21 +147,29 @@ func TestHashPasswordDeterministic(t *testing.T) {
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b := make([]byte, 16)
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rand.Read(b)
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u := &User{Salt: string(b)}
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for i := 0; i < 50; i++ {
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// generate a random password
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rand.Read(b)
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pass := string(b)
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algos := []string{"pbkdf2", "argon2", "scrypt", "bcrypt"}
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for j := 0; j < len(algos); j++ {
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u.PasswdHashAlgo = algos[j]
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for i := 0; i < 50; i++ {
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// generate a random password
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rand.Read(b)
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pass := string(b)
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// save the current password in the user - hash it and store the result
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u.HashPassword(pass)
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r1 := u.Passwd
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// save the current password in the user - hash it and store the result
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u.HashPassword(pass)
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r1 := u.Passwd
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// run again
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u.HashPassword(pass)
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r2 := u.Passwd
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// run again
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u.HashPassword(pass)
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r2 := u.Passwd
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// assert equal (given the same salt+pass, the same result is produced)
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assert.Equal(t, r1, r2)
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// assert equal (given the same salt+pass, the same result is produced) except bcrypt
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if u.PasswdHashAlgo == "bcrypt" {
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assert.NotEqual(t, r1, r2)
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} else {
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assert.Equal(t, r1, r2)
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}
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}
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}
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}
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@ -154,6 +154,7 @@ var (
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MinPasswordLength int
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ImportLocalPaths bool
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DisableGitHooks bool
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PasswordHashAlgo string
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// Database settings
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UseSQLite3 bool
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@ -779,6 +780,7 @@ func NewContext() {
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MinPasswordLength = sec.Key("MIN_PASSWORD_LENGTH").MustInt(6)
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ImportLocalPaths = sec.Key("IMPORT_LOCAL_PATHS").MustBool(false)
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DisableGitHooks = sec.Key("DISABLE_GIT_HOOKS").MustBool(false)
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PasswordHashAlgo = sec.Key("PASSWORD_HASH_ALGO").MustString("pbkdf2")
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InternalToken = loadInternalToken(sec)
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IterateBufferSize = Cfg.Section("database").Key("ITERATE_BUFFER_SIZE").MustInt(50)
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LogSQL = Cfg.Section("database").Key("LOG_SQL").MustBool(true)
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@ -0,0 +1,285 @@
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package argon2 implements the key derivation function Argon2.
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// Argon2 was selected as the winner of the Password Hashing Competition and can
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// be used to derive cryptographic keys from passwords.
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//
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// For a detailed specification of Argon2 see [1].
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//
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// If you aren't sure which function you need, use Argon2id (IDKey) and
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// the parameter recommendations for your scenario.
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//
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//
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// Argon2i
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//
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// Argon2i (implemented by Key) is the side-channel resistant version of Argon2.
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// It uses data-independent memory access, which is preferred for password
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// hashing and password-based key derivation. Argon2i requires more passes over
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// memory than Argon2id to protect from trade-off attacks. The recommended
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// parameters (taken from [2]) for non-interactive operations are time=3 and to
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// use the maximum available memory.
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//
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//
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// Argon2id
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//
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// Argon2id (implemented by IDKey) is a hybrid version of Argon2 combining
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// Argon2i and Argon2d. It uses data-independent memory access for the first
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// half of the first iteration over the memory and data-dependent memory access
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// for the rest. Argon2id is side-channel resistant and provides better brute-
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// force cost savings due to time-memory tradeoffs than Argon2i. The recommended
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// parameters for non-interactive operations (taken from [2]) are time=1 and to
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// use the maximum available memory.
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//
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// [1] https://github.com/P-H-C/phc-winner-argon2/blob/master/argon2-specs.pdf
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// [2] https://tools.ietf.org/html/draft-irtf-cfrg-argon2-03#section-9.3
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package argon2
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import (
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"encoding/binary"
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"sync"
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"golang.org/x/crypto/blake2b"
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)
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// The Argon2 version implemented by this package.
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const Version = 0x13
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const (
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argon2d = iota
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argon2i
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argon2id
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)
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// Key derives a key from the password, salt, and cost parameters using Argon2i
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// returning a byte slice of length keyLen that can be used as cryptographic
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// key. The CPU cost and parallelism degree must be greater than zero.
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//
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// For example, you can get a derived key for e.g. AES-256 (which needs a
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// 32-byte key) by doing:
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//
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// key := argon2.Key([]byte("some password"), salt, 3, 32*1024, 4, 32)
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//
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// The draft RFC recommends[2] time=3, and memory=32*1024 is a sensible number.
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// If using that amount of memory (32 MB) is not possible in some contexts then
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// the time parameter can be increased to compensate.
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//
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// The time parameter specifies the number of passes over the memory and the
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// memory parameter specifies the size of the memory in KiB. For example
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// memory=32*1024 sets the memory cost to ~32 MB. The number of threads can be
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// adjusted to the number of available CPUs. The cost parameters should be
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// increased as memory latency and CPU parallelism increases. Remember to get a
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// good random salt.
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func Key(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
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return deriveKey(argon2i, password, salt, nil, nil, time, memory, threads, keyLen)
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}
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// IDKey derives a key from the password, salt, and cost parameters using
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// Argon2id returning a byte slice of length keyLen that can be used as
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// cryptographic key. The CPU cost and parallelism degree must be greater than
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// zero.
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//
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// For example, you can get a derived key for e.g. AES-256 (which needs a
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// 32-byte key) by doing:
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//
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// key := argon2.IDKey([]byte("some password"), salt, 1, 64*1024, 4, 32)
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//
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// The draft RFC recommends[2] time=1, and memory=64*1024 is a sensible number.
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// If using that amount of memory (64 MB) is not possible in some contexts then
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// the time parameter can be increased to compensate.
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//
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// The time parameter specifies the number of passes over the memory and the
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// memory parameter specifies the size of the memory in KiB. For example
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// memory=64*1024 sets the memory cost to ~64 MB. The number of threads can be
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// adjusted to the numbers of available CPUs. The cost parameters should be
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// increased as memory latency and CPU parallelism increases. Remember to get a
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// good random salt.
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func IDKey(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
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return deriveKey(argon2id, password, salt, nil, nil, time, memory, threads, keyLen)
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}
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func deriveKey(mode int, password, salt, secret, data []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
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if time < 1 {
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panic("argon2: number of rounds too small")
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}
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if threads < 1 {
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panic("argon2: parallelism degree too low")
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}
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h0 := initHash(password, salt, secret, data, time, memory, uint32(threads), keyLen, mode)
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memory = memory / (syncPoints * uint32(threads)) * (syncPoints * uint32(threads))
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if memory < 2*syncPoints*uint32(threads) {
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memory = 2 * syncPoints * uint32(threads)
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}
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B := initBlocks(&h0, memory, uint32(threads))
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processBlocks(B, time, memory, uint32(threads), mode)
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return extractKey(B, memory, uint32(threads), keyLen)
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}
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const (
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blockLength = 128
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syncPoints = 4
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)
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type block [blockLength]uint64
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func initHash(password, salt, key, data []byte, time, memory, threads, keyLen uint32, mode int) [blake2b.Size + 8]byte {
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var (
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h0 [blake2b.Size + 8]byte
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params [24]byte
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tmp [4]byte
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)
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b2, _ := blake2b.New512(nil)
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binary.LittleEndian.PutUint32(params[0:4], threads)
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binary.LittleEndian.PutUint32(params[4:8], keyLen)
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binary.LittleEndian.PutUint32(params[8:12], memory)
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binary.LittleEndian.PutUint32(params[12:16], time)
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binary.LittleEndian.PutUint32(params[16:20], uint32(Version))
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binary.LittleEndian.PutUint32(params[20:24], uint32(mode))
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b2.Write(params[:])
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binary.LittleEndian.PutUint32(tmp[:], uint32(len(password)))
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b2.Write(tmp[:])
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b2.Write(password)
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binary.LittleEndian.PutUint32(tmp[:], uint32(len(salt)))
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b2.Write(tmp[:])
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b2.Write(salt)
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binary.LittleEndian.PutUint32(tmp[:], uint32(len(key)))
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b2.Write(tmp[:])
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b2.Write(key)
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binary.LittleEndian.PutUint32(tmp[:], uint32(len(data)))
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b2.Write(tmp[:])
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b2.Write(data)
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b2.Sum(h0[:0])
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return h0
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}
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func initBlocks(h0 *[blake2b.Size + 8]byte, memory, threads uint32) []block {
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var block0 [1024]byte
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B := make([]block, memory)
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for lane := uint32(0); lane < threads; lane++ {
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j := lane * (memory / threads)
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binary.LittleEndian.PutUint32(h0[blake2b.Size+4:], lane)
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binary.LittleEndian.PutUint32(h0[blake2b.Size:], 0)
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blake2bHash(block0[:], h0[:])
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for i := range B[j+0] {
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B[j+0][i] = binary.LittleEndian.Uint64(block0[i*8:])
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}
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binary.LittleEndian.PutUint32(h0[blake2b.Size:], 1)
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blake2bHash(block0[:], h0[:])
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for i := range B[j+1] {
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B[j+1][i] = binary.LittleEndian.Uint64(block0[i*8:])
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}
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}
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return B
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}
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func processBlocks(B []block, time, memory, threads uint32, mode int) {
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lanes := memory / threads
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segments := lanes / syncPoints
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processSegment := func(n, slice, lane uint32, wg *sync.WaitGroup) {
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var addresses, in, zero block
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if mode == argon2i || (mode == argon2id && n == 0 && slice < syncPoints/2) {
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in[0] = uint64(n)
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in[1] = uint64(lane)
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in[2] = uint64(slice)
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in[3] = uint64(memory)
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in[4] = uint64(time)
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in[5] = uint64(mode)
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}
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index := uint32(0)
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if n == 0 && slice == 0 {
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index = 2 // we have already generated the first two blocks
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if mode == argon2i || mode == argon2id {
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in[6]++
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processBlock(&addresses, &in, &zero)
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processBlock(&addresses, &addresses, &zero)
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}
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}
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offset := lane*lanes + slice*segments + index
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var random uint64
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for index < segments {
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prev := offset - 1
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if index == 0 && slice == 0 {
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prev += lanes // last block in lane
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}
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if mode == argon2i || (mode == argon2id && n == 0 && slice < syncPoints/2) {
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if index%blockLength == 0 {
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in[6]++
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processBlock(&addresses, &in, &zero)
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processBlock(&addresses, &addresses, &zero)
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}
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random = addresses[index%blockLength]
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} else {
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random = B[prev][0]
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}
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newOffset := indexAlpha(random, lanes, segments, threads, n, slice, lane, index)
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processBlockXOR(&B[offset], &B[prev], &B[newOffset])
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index, offset = index+1, offset+1
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}
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wg.Done()
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}
|
||||
|
||||
for n := uint32(0); n < time; n++ {
|
||||
for slice := uint32(0); slice < syncPoints; slice++ {
|
||||
var wg sync.WaitGroup
|
||||
for lane := uint32(0); lane < threads; lane++ {
|
||||
wg.Add(1)
|
||||
go processSegment(n, slice, lane, &wg)
|
||||
}
|
||||
wg.Wait()
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func extractKey(B []block, memory, threads, keyLen uint32) []byte {
|
||||
lanes := memory / threads
|
||||
for lane := uint32(0); lane < threads-1; lane++ {
|
||||
for i, v := range B[(lane*lanes)+lanes-1] {
|
||||
B[memory-1][i] ^= v
|
||||
}
|
||||
}
|
||||
|
||||
var block [1024]byte
|
||||
for i, v := range B[memory-1] {
|
||||
binary.LittleEndian.PutUint64(block[i*8:], v)
|
||||
}
|
||||
key := make([]byte, keyLen)
|
||||
blake2bHash(key, block[:])
|
||||
return key
|
||||
}
|
||||
|
||||
func indexAlpha(rand uint64, lanes, segments, threads, n, slice, lane, index uint32) uint32 {
|
||||
refLane := uint32(rand>>32) % threads
|
||||
if n == 0 && slice == 0 {
|
||||
refLane = lane
|
||||
}
|
||||
m, s := 3*segments, ((slice+1)%syncPoints)*segments
|
||||
if lane == refLane {
|
||||
m += index
|
||||
}
|
||||
if n == 0 {
|
||||
m, s = slice*segments, 0
|
||||
if slice == 0 || lane == refLane {
|
||||
m += index
|
||||
}
|
||||
}
|
||||
if index == 0 || lane == refLane {
|
||||
m--
|
||||
}
|
||||
return phi(rand, uint64(m), uint64(s), refLane, lanes)
|
||||
}
|
||||
|
||||
func phi(rand, m, s uint64, lane, lanes uint32) uint32 {
|
||||
p := rand & 0xFFFFFFFF
|
||||
p = (p * p) >> 32
|
||||
p = (p * m) >> 32
|
||||
return lane*lanes + uint32((s+m-(p+1))%uint64(lanes))
|
||||
}
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package argon2
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"hash"
|
||||
|
||||
"golang.org/x/crypto/blake2b"
|
||||
)
|
||||
|
||||
// blake2bHash computes an arbitrary long hash value of in
|
||||
// and writes the hash to out.
|
||||
func blake2bHash(out []byte, in []byte) {
|
||||
var b2 hash.Hash
|
||||
if n := len(out); n < blake2b.Size {
|
||||
b2, _ = blake2b.New(n, nil)
|
||||
} else {
|
||||
b2, _ = blake2b.New512(nil)
|
||||
}
|
||||
|
||||
var buffer [blake2b.Size]byte
|
||||
binary.LittleEndian.PutUint32(buffer[:4], uint32(len(out)))
|
||||
b2.Write(buffer[:4])
|
||||
b2.Write(in)
|
||||
|
||||
if len(out) <= blake2b.Size {
|
||||
b2.Sum(out[:0])
|
||||
return
|
||||
}
|
||||
|
||||
outLen := len(out)
|
||||
b2.Sum(buffer[:0])
|
||||
b2.Reset()
|
||||
copy(out, buffer[:32])
|
||||
out = out[32:]
|
||||
for len(out) > blake2b.Size {
|
||||
b2.Write(buffer[:])
|
||||
b2.Sum(buffer[:0])
|
||||
copy(out, buffer[:32])
|
||||
out = out[32:]
|
||||
b2.Reset()
|
||||
}
|
||||
|
||||
if outLen%blake2b.Size > 0 { // outLen > 64
|
||||
r := ((outLen + 31) / 32) - 2 // ⌈τ /32⌉-2
|
||||
b2, _ = blake2b.New(outLen-32*r, nil)
|
||||
}
|
||||
b2.Write(buffer[:])
|
||||
b2.Sum(out[:0])
|
||||
}
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build amd64,!gccgo,!appengine
|
||||
|
||||
package argon2
|
||||
|
||||
import "golang.org/x/sys/cpu"
|
||||
|
||||
func init() {
|
||||
useSSE4 = cpu.X86.HasSSE41
|
||||
}
|
||||
|
||||
//go:noescape
|
||||
func mixBlocksSSE2(out, a, b, c *block)
|
||||
|
||||
//go:noescape
|
||||
func xorBlocksSSE2(out, a, b, c *block)
|
||||
|
||||
//go:noescape
|
||||
func blamkaSSE4(b *block)
|
||||
|
||||
func processBlockSSE(out, in1, in2 *block, xor bool) {
|
||||
var t block
|
||||
mixBlocksSSE2(&t, in1, in2, &t)
|
||||
if useSSE4 {
|
||||
blamkaSSE4(&t)
|
||||
} else {
|
||||
for i := 0; i < blockLength; i += 16 {
|
||||
blamkaGeneric(
|
||||
&t[i+0], &t[i+1], &t[i+2], &t[i+3],
|
||||
&t[i+4], &t[i+5], &t[i+6], &t[i+7],
|
||||
&t[i+8], &t[i+9], &t[i+10], &t[i+11],
|
||||
&t[i+12], &t[i+13], &t[i+14], &t[i+15],
|
||||
)
|
||||
}
|
||||
for i := 0; i < blockLength/8; i += 2 {
|
||||
blamkaGeneric(
|
||||
&t[i], &t[i+1], &t[16+i], &t[16+i+1],
|
||||
&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
|
||||
&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
|
||||
&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
|
||||
)
|
||||
}
|
||||
}
|
||||
if xor {
|
||||
xorBlocksSSE2(out, in1, in2, &t)
|
||||
} else {
|
||||
mixBlocksSSE2(out, in1, in2, &t)
|
||||
}
|
||||
}
|
||||
|
||||
func processBlock(out, in1, in2 *block) {
|
||||
processBlockSSE(out, in1, in2, false)
|
||||
}
|
||||
|
||||
func processBlockXOR(out, in1, in2 *block) {
|
||||
processBlockSSE(out, in1, in2, true)
|
||||
}
|
||||
|
|
@ -0,0 +1,243 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build amd64,!gccgo,!appengine
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
DATA ·c40<>+0x00(SB)/8, $0x0201000706050403
|
||||
DATA ·c40<>+0x08(SB)/8, $0x0a09080f0e0d0c0b
|
||||
GLOBL ·c40<>(SB), (NOPTR+RODATA), $16
|
||||
|
||||
DATA ·c48<>+0x00(SB)/8, $0x0100070605040302
|
||||
DATA ·c48<>+0x08(SB)/8, $0x09080f0e0d0c0b0a
|
||||
GLOBL ·c48<>(SB), (NOPTR+RODATA), $16
|
||||
|
||||
#define SHUFFLE(v2, v3, v4, v5, v6, v7, t1, t2) \
|
||||
MOVO v4, t1; \
|
||||
MOVO v5, v4; \
|
||||
MOVO t1, v5; \
|
||||
MOVO v6, t1; \
|
||||
PUNPCKLQDQ v6, t2; \
|
||||
PUNPCKHQDQ v7, v6; \
|
||||
PUNPCKHQDQ t2, v6; \
|
||||
PUNPCKLQDQ v7, t2; \
|
||||
MOVO t1, v7; \
|
||||
MOVO v2, t1; \
|
||||
PUNPCKHQDQ t2, v7; \
|
||||
PUNPCKLQDQ v3, t2; \
|
||||
PUNPCKHQDQ t2, v2; \
|
||||
PUNPCKLQDQ t1, t2; \
|
||||
PUNPCKHQDQ t2, v3
|
||||
|
||||
#define SHUFFLE_INV(v2, v3, v4, v5, v6, v7, t1, t2) \
|
||||
MOVO v4, t1; \
|
||||
MOVO v5, v4; \
|
||||
MOVO t1, v5; \
|
||||
MOVO v2, t1; \
|
||||
PUNPCKLQDQ v2, t2; \
|
||||
PUNPCKHQDQ v3, v2; \
|
||||
PUNPCKHQDQ t2, v2; \
|
||||
PUNPCKLQDQ v3, t2; \
|
||||
MOVO t1, v3; \
|
||||
MOVO v6, t1; \
|
||||
PUNPCKHQDQ t2, v3; \
|
||||
PUNPCKLQDQ v7, t2; \
|
||||
PUNPCKHQDQ t2, v6; \
|
||||
PUNPCKLQDQ t1, t2; \
|
||||
PUNPCKHQDQ t2, v7
|
||||
|
||||
#define HALF_ROUND(v0, v1, v2, v3, v4, v5, v6, v7, t0, c40, c48) \
|
||||
MOVO v0, t0; \
|
||||
PMULULQ v2, t0; \
|
||||
PADDQ v2, v0; \
|
||||
PADDQ t0, v0; \
|
||||
PADDQ t0, v0; \
|
||||
PXOR v0, v6; \
|
||||
PSHUFD $0xB1, v6, v6; \
|
||||
MOVO v4, t0; \
|
||||
PMULULQ v6, t0; \
|
||||
PADDQ v6, v4; \
|
||||
PADDQ t0, v4; \
|
||||
PADDQ t0, v4; \
|
||||
PXOR v4, v2; \
|
||||
PSHUFB c40, v2; \
|
||||
MOVO v0, t0; \
|
||||
PMULULQ v2, t0; \
|
||||
PADDQ v2, v0; \
|
||||
PADDQ t0, v0; \
|
||||
PADDQ t0, v0; \
|
||||
PXOR v0, v6; \
|
||||
PSHUFB c48, v6; \
|
||||
MOVO v4, t0; \
|
||||
PMULULQ v6, t0; \
|
||||
PADDQ v6, v4; \
|
||||
PADDQ t0, v4; \
|
||||
PADDQ t0, v4; \
|
||||
PXOR v4, v2; \
|
||||
MOVO v2, t0; \
|
||||
PADDQ v2, t0; \
|
||||
PSRLQ $63, v2; \
|
||||
PXOR t0, v2; \
|
||||
MOVO v1, t0; \
|
||||
PMULULQ v3, t0; \
|
||||
PADDQ v3, v1; \
|
||||
PADDQ t0, v1; \
|
||||
PADDQ t0, v1; \
|
||||
PXOR v1, v7; \
|
||||
PSHUFD $0xB1, v7, v7; \
|
||||
MOVO v5, t0; \
|
||||
PMULULQ v7, t0; \
|
||||
PADDQ v7, v5; \
|
||||
PADDQ t0, v5; \
|
||||
PADDQ t0, v5; \
|
||||
PXOR v5, v3; \
|
||||
PSHUFB c40, v3; \
|
||||
MOVO v1, t0; \
|
||||
PMULULQ v3, t0; \
|
||||
PADDQ v3, v1; \
|
||||
PADDQ t0, v1; \
|
||||
PADDQ t0, v1; \
|
||||
PXOR v1, v7; \
|
||||
PSHUFB c48, v7; \
|
||||
MOVO v5, t0; \
|
||||
PMULULQ v7, t0; \
|
||||
PADDQ v7, v5; \
|
||||
PADDQ t0, v5; \
|
||||
PADDQ t0, v5; \
|
||||
PXOR v5, v3; \
|
||||
MOVO v3, t0; \
|
||||
PADDQ v3, t0; \
|
||||
PSRLQ $63, v3; \
|
||||
PXOR t0, v3
|
||||
|
||||
#define LOAD_MSG_0(block, off) \
|
||||
MOVOU 8*(off+0)(block), X0; \
|
||||
MOVOU 8*(off+2)(block), X1; \
|
||||
MOVOU 8*(off+4)(block), X2; \
|
||||
MOVOU 8*(off+6)(block), X3; \
|
||||
MOVOU 8*(off+8)(block), X4; \
|
||||
MOVOU 8*(off+10)(block), X5; \
|
||||
MOVOU 8*(off+12)(block), X6; \
|
||||
MOVOU 8*(off+14)(block), X7
|
||||
|
||||
#define STORE_MSG_0(block, off) \
|
||||
MOVOU X0, 8*(off+0)(block); \
|
||||
MOVOU X1, 8*(off+2)(block); \
|
||||
MOVOU X2, 8*(off+4)(block); \
|
||||
MOVOU X3, 8*(off+6)(block); \
|
||||
MOVOU X4, 8*(off+8)(block); \
|
||||
MOVOU X5, 8*(off+10)(block); \
|
||||
MOVOU X6, 8*(off+12)(block); \
|
||||
MOVOU X7, 8*(off+14)(block)
|
||||
|
||||
#define LOAD_MSG_1(block, off) \
|
||||
MOVOU 8*off+0*8(block), X0; \
|
||||
MOVOU 8*off+16*8(block), X1; \
|
||||
MOVOU 8*off+32*8(block), X2; \
|
||||
MOVOU 8*off+48*8(block), X3; \
|
||||
MOVOU 8*off+64*8(block), X4; \
|
||||
MOVOU 8*off+80*8(block), X5; \
|
||||
MOVOU 8*off+96*8(block), X6; \
|
||||
MOVOU 8*off+112*8(block), X7
|
||||
|
||||
#define STORE_MSG_1(block, off) \
|
||||
MOVOU X0, 8*off+0*8(block); \
|
||||
MOVOU X1, 8*off+16*8(block); \
|
||||
MOVOU X2, 8*off+32*8(block); \
|
||||
MOVOU X3, 8*off+48*8(block); \
|
||||
MOVOU X4, 8*off+64*8(block); \
|
||||
MOVOU X5, 8*off+80*8(block); \
|
||||
MOVOU X6, 8*off+96*8(block); \
|
||||
MOVOU X7, 8*off+112*8(block)
|
||||
|
||||
#define BLAMKA_ROUND_0(block, off, t0, t1, c40, c48) \
|
||||
LOAD_MSG_0(block, off); \
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
|
||||
SHUFFLE(X2, X3, X4, X5, X6, X7, t0, t1); \
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
|
||||
SHUFFLE_INV(X2, X3, X4, X5, X6, X7, t0, t1); \
|
||||
STORE_MSG_0(block, off)
|
||||
|
||||
#define BLAMKA_ROUND_1(block, off, t0, t1, c40, c48) \
|
||||
LOAD_MSG_1(block, off); \
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
|
||||
SHUFFLE(X2, X3, X4, X5, X6, X7, t0, t1); \
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
|
||||
SHUFFLE_INV(X2, X3, X4, X5, X6, X7, t0, t1); \
|
||||
STORE_MSG_1(block, off)
|
||||
|
||||
// func blamkaSSE4(b *block)
|
||||
TEXT ·blamkaSSE4(SB), 4, $0-8
|
||||
MOVQ b+0(FP), AX
|
||||
|
||||
MOVOU ·c40<>(SB), X10
|
||||
MOVOU ·c48<>(SB), X11
|
||||
|
||||
BLAMKA_ROUND_0(AX, 0, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 16, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 32, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 48, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 64, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 80, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 96, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_0(AX, 112, X8, X9, X10, X11)
|
||||
|
||||
BLAMKA_ROUND_1(AX, 0, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 2, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 4, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 6, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 8, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 10, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 12, X8, X9, X10, X11)
|
||||
BLAMKA_ROUND_1(AX, 14, X8, X9, X10, X11)
|
||||
RET
|
||||
|
||||
// func mixBlocksSSE2(out, a, b, c *block)
|
||||
TEXT ·mixBlocksSSE2(SB), 4, $0-32
|
||||
MOVQ out+0(FP), DX
|
||||
MOVQ a+8(FP), AX
|
||||
MOVQ b+16(FP), BX
|
||||
MOVQ a+24(FP), CX
|
||||
MOVQ $128, BP
|
||||
|
||||
loop:
|
||||
MOVOU 0(AX), X0
|
||||
MOVOU 0(BX), X1
|
||||
MOVOU 0(CX), X2
|
||||
PXOR X1, X0
|
||||
PXOR X2, X0
|
||||
MOVOU X0, 0(DX)
|
||||
ADDQ $16, AX
|
||||
ADDQ $16, BX
|
||||
ADDQ $16, CX
|
||||
ADDQ $16, DX
|
||||
SUBQ $2, BP
|
||||
JA loop
|
||||
RET
|
||||
|
||||
// func xorBlocksSSE2(out, a, b, c *block)
|
||||
TEXT ·xorBlocksSSE2(SB), 4, $0-32
|
||||
MOVQ out+0(FP), DX
|
||||
MOVQ a+8(FP), AX
|
||||
MOVQ b+16(FP), BX
|
||||
MOVQ a+24(FP), CX
|
||||
MOVQ $128, BP
|
||||
|
||||
loop:
|
||||
MOVOU 0(AX), X0
|
||||
MOVOU 0(BX), X1
|
||||
MOVOU 0(CX), X2
|
||||
MOVOU 0(DX), X3
|
||||
PXOR X1, X0
|
||||
PXOR X2, X0
|
||||
PXOR X3, X0
|
||||
MOVOU X0, 0(DX)
|
||||
ADDQ $16, AX
|
||||
ADDQ $16, BX
|
||||
ADDQ $16, CX
|
||||
ADDQ $16, DX
|
||||
SUBQ $2, BP
|
||||
JA loop
|
||||
RET
|
||||
|
|
@ -0,0 +1,163 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package argon2
|
||||
|
||||
var useSSE4 bool
|
||||
|
||||
func processBlockGeneric(out, in1, in2 *block, xor bool) {
|
||||
var t block
|
||||
for i := range t {
|
||||
t[i] = in1[i] ^ in2[i]
|
||||
}
|
||||
for i := 0; i < blockLength; i += 16 {
|
||||
blamkaGeneric(
|
||||
&t[i+0], &t[i+1], &t[i+2], &t[i+3],
|
||||
&t[i+4], &t[i+5], &t[i+6], &t[i+7],
|
||||
&t[i+8], &t[i+9], &t[i+10], &t[i+11],
|
||||
&t[i+12], &t[i+13], &t[i+14], &t[i+15],
|
||||
)
|
||||
}
|
||||
for i := 0; i < blockLength/8; i += 2 {
|
||||
blamkaGeneric(
|
||||
&t[i], &t[i+1], &t[16+i], &t[16+i+1],
|
||||
&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
|
||||
&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
|
||||
&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
|
||||
)
|
||||
}
|
||||
if xor {
|
||||
for i := range t {
|
||||
out[i] ^= in1[i] ^ in2[i] ^ t[i]
|
||||
}
|
||||
} else {
|
||||
for i := range t {
|
||||
out[i] = in1[i] ^ in2[i] ^ t[i]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func blamkaGeneric(t00, t01, t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t12, t13, t14, t15 *uint64) {
|
||||
v00, v01, v02, v03 := *t00, *t01, *t02, *t03
|
||||
v04, v05, v06, v07 := *t04, *t05, *t06, *t07
|
||||
v08, v09, v10, v11 := *t08, *t09, *t10, *t11
|
||||
v12, v13, v14, v15 := *t12, *t13, *t14, *t15
|
||||
|
||||
v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
|
||||
v12 ^= v00
|
||||
v12 = v12>>32 | v12<<32
|
||||
v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
|
||||
v04 ^= v08
|
||||
v04 = v04>>24 | v04<<40
|
||||
|
||||
v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
|
||||
v12 ^= v00
|
||||
v12 = v12>>16 | v12<<48
|
||||
v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
|
||||
v04 ^= v08
|
||||
v04 = v04>>63 | v04<<1
|
||||
|
||||
v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
|
||||
v13 ^= v01
|
||||
v13 = v13>>32 | v13<<32
|
||||
v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
|
||||
v05 ^= v09
|
||||
v05 = v05>>24 | v05<<40
|
||||
|
||||
v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
|
||||
v13 ^= v01
|
||||
v13 = v13>>16 | v13<<48
|
||||
v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
|
||||
v05 ^= v09
|
||||
v05 = v05>>63 | v05<<1
|
||||
|
||||
v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
|
||||
v14 ^= v02
|
||||
v14 = v14>>32 | v14<<32
|
||||
v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
|
||||
v06 ^= v10
|
||||
v06 = v06>>24 | v06<<40
|
||||
|
||||
v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
|
||||
v14 ^= v02
|
||||
v14 = v14>>16 | v14<<48
|
||||
v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
|
||||
v06 ^= v10
|
||||
v06 = v06>>63 | v06<<1
|
||||
|
||||
v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
|
||||
v15 ^= v03
|
||||
v15 = v15>>32 | v15<<32
|
||||
v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
|
||||
v07 ^= v11
|
||||
v07 = v07>>24 | v07<<40
|
||||
|
||||
v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
|
||||
v15 ^= v03
|
||||
v15 = v15>>16 | v15<<48
|
||||
v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
|
||||
v07 ^= v11
|
||||
v07 = v07>>63 | v07<<1
|
||||
|
||||
v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
|
||||
v15 ^= v00
|
||||
v15 = v15>>32 | v15<<32
|
||||
v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
|
||||
v05 ^= v10
|
||||
v05 = v05>>24 | v05<<40
|
||||
|
||||
v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
|
||||
v15 ^= v00
|
||||
v15 = v15>>16 | v15<<48
|
||||
v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
|
||||
v05 ^= v10
|
||||
v05 = v05>>63 | v05<<1
|
||||
|
||||
v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
|
||||
v12 ^= v01
|
||||
v12 = v12>>32 | v12<<32
|
||||
v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
|
||||
v06 ^= v11
|
||||
v06 = v06>>24 | v06<<40
|
||||
|
||||
v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
|
||||
v12 ^= v01
|
||||
v12 = v12>>16 | v12<<48
|
||||
v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
|
||||
v06 ^= v11
|
||||
v06 = v06>>63 | v06<<1
|
||||
|
||||
v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
|
||||
v13 ^= v02
|
||||
v13 = v13>>32 | v13<<32
|
||||
v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
|
||||
v07 ^= v08
|
||||
v07 = v07>>24 | v07<<40
|
||||
|
||||
v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
|
||||
v13 ^= v02
|
||||
v13 = v13>>16 | v13<<48
|
||||
v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
|
||||
v07 ^= v08
|
||||
v07 = v07>>63 | v07<<1
|
||||
|
||||
v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
|
||||
v14 ^= v03
|
||||
v14 = v14>>32 | v14<<32
|
||||
v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
|
||||
v04 ^= v09
|
||||
v04 = v04>>24 | v04<<40
|
||||
|
||||
v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
|
||||
v14 ^= v03
|
||||
v14 = v14>>16 | v14<<48
|
||||
v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
|
||||
v04 ^= v09
|
||||
v04 = v04>>63 | v04<<1
|
||||
|
||||
*t00, *t01, *t02, *t03 = v00, v01, v02, v03
|
||||
*t04, *t05, *t06, *t07 = v04, v05, v06, v07
|
||||
*t08, *t09, *t10, *t11 = v08, v09, v10, v11
|
||||
*t12, *t13, *t14, *t15 = v12, v13, v14, v15
|
||||
}
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64 appengine gccgo
|
||||
|
||||
package argon2
|
||||
|
||||
func processBlock(out, in1, in2 *block) {
|
||||
processBlockGeneric(out, in1, in2, false)
|
||||
}
|
||||
|
||||
func processBlockXOR(out, in1, in2 *block) {
|
||||
processBlockGeneric(out, in1, in2, true)
|
||||
}
|
||||
|
|
@ -0,0 +1,289 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package blake2b implements the BLAKE2b hash algorithm defined by RFC 7693
|
||||
// and the extendable output function (XOF) BLAKE2Xb.
|
||||
//
|
||||
// For a detailed specification of BLAKE2b see https://blake2.net/blake2.pdf
|
||||
// and for BLAKE2Xb see https://blake2.net/blake2x.pdf
|
||||
//
|
||||
// If you aren't sure which function you need, use BLAKE2b (Sum512 or New512).
|
||||
// If you need a secret-key MAC (message authentication code), use the New512
|
||||
// function with a non-nil key.
|
||||
//
|
||||
// BLAKE2X is a construction to compute hash values larger than 64 bytes. It
|
||||
// can produce hash values between 0 and 4 GiB.
|
||||
package blake2b
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"hash"
|
||||
)
|
||||
|
||||
const (
|
||||
// The blocksize of BLAKE2b in bytes.
|
||||
BlockSize = 128
|
||||
// The hash size of BLAKE2b-512 in bytes.
|
||||
Size = 64
|
||||
// The hash size of BLAKE2b-384 in bytes.
|
||||
Size384 = 48
|
||||
// The hash size of BLAKE2b-256 in bytes.
|
||||
Size256 = 32
|
||||
)
|
||||
|
||||
var (
|
||||
useAVX2 bool
|
||||
useAVX bool
|
||||
useSSE4 bool
|
||||
)
|
||||
|
||||
var (
|
||||
errKeySize = errors.New("blake2b: invalid key size")
|
||||
errHashSize = errors.New("blake2b: invalid hash size")
|
||||
)
|
||||
|
||||
var iv = [8]uint64{
|
||||
0x6a09e667f3bcc908, 0xbb67ae8584caa73b, 0x3c6ef372fe94f82b, 0xa54ff53a5f1d36f1,
|
||||
0x510e527fade682d1, 0x9b05688c2b3e6c1f, 0x1f83d9abfb41bd6b, 0x5be0cd19137e2179,
|
||||
}
|
||||
|
||||
// Sum512 returns the BLAKE2b-512 checksum of the data.
|
||||
func Sum512(data []byte) [Size]byte {
|
||||
var sum [Size]byte
|
||||
checkSum(&sum, Size, data)
|
||||
return sum
|
||||
}
|
||||
|
||||
// Sum384 returns the BLAKE2b-384 checksum of the data.
|
||||
func Sum384(data []byte) [Size384]byte {
|
||||
var sum [Size]byte
|
||||
var sum384 [Size384]byte
|
||||
checkSum(&sum, Size384, data)
|
||||
copy(sum384[:], sum[:Size384])
|
||||
return sum384
|
||||
}
|
||||
|
||||
// Sum256 returns the BLAKE2b-256 checksum of the data.
|
||||
func Sum256(data []byte) [Size256]byte {
|
||||
var sum [Size]byte
|
||||
var sum256 [Size256]byte
|
||||
checkSum(&sum, Size256, data)
|
||||
copy(sum256[:], sum[:Size256])
|
||||
return sum256
|
||||
}
|
||||
|
||||
// New512 returns a new hash.Hash computing the BLAKE2b-512 checksum. A non-nil
|
||||
// key turns the hash into a MAC. The key must be between zero and 64 bytes long.
|
||||
func New512(key []byte) (hash.Hash, error) { return newDigest(Size, key) }
|
||||
|
||||
// New384 returns a new hash.Hash computing the BLAKE2b-384 checksum. A non-nil
|
||||
// key turns the hash into a MAC. The key must be between zero and 64 bytes long.
|
||||
func New384(key []byte) (hash.Hash, error) { return newDigest(Size384, key) }
|
||||
|
||||
// New256 returns a new hash.Hash computing the BLAKE2b-256 checksum. A non-nil
|
||||
// key turns the hash into a MAC. The key must be between zero and 64 bytes long.
|
||||
func New256(key []byte) (hash.Hash, error) { return newDigest(Size256, key) }
|
||||
|
||||
// New returns a new hash.Hash computing the BLAKE2b checksum with a custom length.
|
||||
// A non-nil key turns the hash into a MAC. The key must be between zero and 64 bytes long.
|
||||
// The hash size can be a value between 1 and 64 but it is highly recommended to use
|
||||
// values equal or greater than:
|
||||
// - 32 if BLAKE2b is used as a hash function (The key is zero bytes long).
|
||||
// - 16 if BLAKE2b is used as a MAC function (The key is at least 16 bytes long).
|
||||
// When the key is nil, the returned hash.Hash implements BinaryMarshaler
|
||||
// and BinaryUnmarshaler for state (de)serialization as documented by hash.Hash.
|
||||
func New(size int, key []byte) (hash.Hash, error) { return newDigest(size, key) }
|
||||
|
||||
func newDigest(hashSize int, key []byte) (*digest, error) {
|
||||
if hashSize < 1 || hashSize > Size {
|
||||
return nil, errHashSize
|
||||
}
|
||||
if len(key) > Size {
|
||||
return nil, errKeySize
|
||||
}
|
||||
d := &digest{
|
||||
size: hashSize,
|
||||
keyLen: len(key),
|
||||
}
|
||||
copy(d.key[:], key)
|
||||
d.Reset()
|
||||
return d, nil
|
||||
}
|
||||
|
||||
func checkSum(sum *[Size]byte, hashSize int, data []byte) {
|
||||
h := iv
|
||||
h[0] ^= uint64(hashSize) | (1 << 16) | (1 << 24)
|
||||
var c [2]uint64
|
||||
|
||||
if length := len(data); length > BlockSize {
|
||||
n := length &^ (BlockSize - 1)
|
||||
if length == n {
|
||||
n -= BlockSize
|
||||
}
|
||||
hashBlocks(&h, &c, 0, data[:n])
|
||||
data = data[n:]
|
||||
}
|
||||
|
||||
var block [BlockSize]byte
|
||||
offset := copy(block[:], data)
|
||||
remaining := uint64(BlockSize - offset)
|
||||
if c[0] < remaining {
|
||||
c[1]--
|
||||
}
|
||||
c[0] -= remaining
|
||||
|
||||
hashBlocks(&h, &c, 0xFFFFFFFFFFFFFFFF, block[:])
|
||||
|
||||
for i, v := range h[:(hashSize+7)/8] {
|
||||
binary.LittleEndian.PutUint64(sum[8*i:], v)
|
||||
}
|
||||
}
|
||||
|
||||
type digest struct {
|
||||
h [8]uint64
|
||||
c [2]uint64
|
||||
size int
|
||||
block [BlockSize]byte
|
||||
offset int
|
||||
|
||||
key [BlockSize]byte
|
||||
keyLen int
|
||||
}
|
||||
|
||||
const (
|
||||
magic = "b2b"
|
||||
marshaledSize = len(magic) + 8*8 + 2*8 + 1 + BlockSize + 1
|
||||
)
|
||||
|
||||
func (d *digest) MarshalBinary() ([]byte, error) {
|
||||
if d.keyLen != 0 {
|
||||
return nil, errors.New("crypto/blake2b: cannot marshal MACs")
|
||||
}
|
||||
b := make([]byte, 0, marshaledSize)
|
||||
b = append(b, magic...)
|
||||
for i := 0; i < 8; i++ {
|
||||
b = appendUint64(b, d.h[i])
|
||||
}
|
||||
b = appendUint64(b, d.c[0])
|
||||
b = appendUint64(b, d.c[1])
|
||||
// Maximum value for size is 64
|
||||
b = append(b, byte(d.size))
|
||||
b = append(b, d.block[:]...)
|
||||
b = append(b, byte(d.offset))
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (d *digest) UnmarshalBinary(b []byte) error {
|
||||
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
|
||||
return errors.New("crypto/blake2b: invalid hash state identifier")
|
||||
}
|
||||
if len(b) != marshaledSize {
|
||||
return errors.New("crypto/blake2b: invalid hash state size")
|
||||
}
|
||||
b = b[len(magic):]
|
||||
for i := 0; i < 8; i++ {
|
||||
b, d.h[i] = consumeUint64(b)
|
||||
}
|
||||
b, d.c[0] = consumeUint64(b)
|
||||
b, d.c[1] = consumeUint64(b)
|
||||
d.size = int(b[0])
|
||||
b = b[1:]
|
||||
copy(d.block[:], b[:BlockSize])
|
||||
b = b[BlockSize:]
|
||||
d.offset = int(b[0])
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d *digest) BlockSize() int { return BlockSize }
|
||||
|
||||
func (d *digest) Size() int { return d.size }
|
||||
|
||||
func (d *digest) Reset() {
|
||||
d.h = iv
|
||||
d.h[0] ^= uint64(d.size) | (uint64(d.keyLen) << 8) | (1 << 16) | (1 << 24)
|
||||
d.offset, d.c[0], d.c[1] = 0, 0, 0
|
||||
if d.keyLen > 0 {
|
||||
d.block = d.key
|
||||
d.offset = BlockSize
|
||||
}
|
||||
}
|
||||
|
||||
func (d *digest) Write(p []byte) (n int, err error) {
|
||||
n = len(p)
|
||||
|
||||
if d.offset > 0 {
|
||||
remaining := BlockSize - d.offset
|
||||
if n <= remaining {
|
||||
d.offset += copy(d.block[d.offset:], p)
|
||||
return
|
||||
}
|
||||
copy(d.block[d.offset:], p[:remaining])
|
||||
hashBlocks(&d.h, &d.c, 0, d.block[:])
|
||||
d.offset = 0
|
||||
p = p[remaining:]
|
||||
}
|
||||
|
||||
if length := len(p); length > BlockSize {
|
||||
nn := length &^ (BlockSize - 1)
|
||||
if length == nn {
|
||||
nn -= BlockSize
|
||||
}
|
||||
hashBlocks(&d.h, &d.c, 0, p[:nn])
|
||||
p = p[nn:]
|
||||
}
|
||||
|
||||
if len(p) > 0 {
|
||||
d.offset += copy(d.block[:], p)
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func (d *digest) Sum(sum []byte) []byte {
|
||||
var hash [Size]byte
|
||||
d.finalize(&hash)
|
||||
return append(sum, hash[:d.size]...)
|
||||
}
|
||||
|
||||
func (d *digest) finalize(hash *[Size]byte) {
|
||||
var block [BlockSize]byte
|
||||
copy(block[:], d.block[:d.offset])
|
||||
remaining := uint64(BlockSize - d.offset)
|
||||
|
||||
c := d.c
|
||||
if c[0] < remaining {
|
||||
c[1]--
|
||||
}
|
||||
c[0] -= remaining
|
||||
|
||||
h := d.h
|
||||
hashBlocks(&h, &c, 0xFFFFFFFFFFFFFFFF, block[:])
|
||||
|
||||
for i, v := range h {
|
||||
binary.LittleEndian.PutUint64(hash[8*i:], v)
|
||||
}
|
||||
}
|
||||
|
||||
func appendUint64(b []byte, x uint64) []byte {
|
||||
var a [8]byte
|
||||
binary.BigEndian.PutUint64(a[:], x)
|
||||
return append(b, a[:]...)
|
||||
}
|
||||
|
||||
func appendUint32(b []byte, x uint32) []byte {
|
||||
var a [4]byte
|
||||
binary.BigEndian.PutUint32(a[:], x)
|
||||
return append(b, a[:]...)
|
||||
}
|
||||
|
||||
func consumeUint64(b []byte) ([]byte, uint64) {
|
||||
x := binary.BigEndian.Uint64(b)
|
||||
return b[8:], x
|
||||
}
|
||||
|
||||
func consumeUint32(b []byte) ([]byte, uint32) {
|
||||
x := binary.BigEndian.Uint32(b)
|
||||
return b[4:], x
|
||||
}
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.7,amd64,!gccgo,!appengine
|
||||
|
||||
package blake2b
|
||||
|
||||
import "golang.org/x/sys/cpu"
|
||||
|
||||
func init() {
|
||||
useAVX2 = cpu.X86.HasAVX2
|
||||
useAVX = cpu.X86.HasAVX
|
||||
useSSE4 = cpu.X86.HasSSE41
|
||||
}
|
||||
|
||||
//go:noescape
|
||||
func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
|
||||
|
||||
//go:noescape
|
||||
func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
|
||||
|
||||
//go:noescape
|
||||
func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
|
||||
|
||||
func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
|
||||
switch {
|
||||
case useAVX2:
|
||||
hashBlocksAVX2(h, c, flag, blocks)
|
||||
case useAVX:
|
||||
hashBlocksAVX(h, c, flag, blocks)
|
||||
case useSSE4:
|
||||
hashBlocksSSE4(h, c, flag, blocks)
|
||||
default:
|
||||
hashBlocksGeneric(h, c, flag, blocks)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,750 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.7,amd64,!gccgo,!appengine
|
||||
| </ | ||||