14665995848

Committed 25 Apr 2025 01:39PM UTC coverage: 82.772% (-0.2%) from 82.961%

Build # 14665995848

Build Type

Pull #1696

github

Committed by

rusher

Commit Message

use named constants for caching_sha2_password

Pull Request Pull Request #1696: Authentication

Run Details

321 of 387 new or added lines in 9 files covered. (82.95%)

7 existing lines in 3 files now uncovered.

3315 of 4005 relevant lines covered (82.77%)

2440698.09 hits per line

Source File
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94.87

/auth_mysql_native.go

// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2023 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.

package mysql

import "crypto/sha1"

// NativePasswordPlugin implements the mysql_native_password authentication
type NativePasswordPlugin struct {
        SimpleAuth
}

func init() {
        RegisterAuthPlugin(&NativePasswordPlugin{})
}

func (p *NativePasswordPlugin) PluginName() string {
        return "mysql_native_password"
}

func (p *NativePasswordPlugin) InitAuth(authData []byte, cfg *Config) ([]byte, error) {
        if !cfg.AllowNativePasswords {
                return nil, ErrNativePassword
        }
        if cfg.Passwd == "" {
                return nil, nil
        }
        return p.scramblePassword(authData[:20], cfg.Passwd), nil
}

// Hash password using 4.1+ method (SHA1)
func (p *NativePasswordPlugin) scramblePassword(scramble []byte, password string) []byte {
        if len(password) == 0 {
                return nil
        }

        // stage1Hash = SHA1(password)
        crypt := sha1.New()
        crypt.Write([]byte(password))
        stage1 := crypt.Sum(nil)

        // scrambleHash = SHA1(scramble + SHA1(stage1Hash))
        // inner Hash
        crypt.Reset()
        crypt.Write(stage1)
        hash := crypt.Sum(nil)

        // outer Hash
        crypt.Reset()
        crypt.Write(scramble)
        crypt.Write(hash)
        scramble = crypt.Sum(nil)

        // token = scrambleHash XOR stage1Hash
        for i := range scramble {
                scramble[i] ^= stage1[i]
        }
        return scramble
}

1	// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
2	//
3	// Copyright 2023 The Go-MySQL-Driver Authors. All rights reserved.
4	//
5	// This Source Code Form is subject to the terms of the Mozilla Public
6	// License, v. 2.0. If a copy of the MPL was not distributed with this file,
7	// You can obtain one at http://mozilla.org/MPL/2.0/.
8
9	package mysql
10
11	import "crypto/sha1"
12
13	// NativePasswordPlugin implements the mysql_native_password authentication
14	type NativePasswordPlugin struct {
15	SimpleAuth
16	}
17
18	func init() {	32✔
19	RegisterAuthPlugin(&NativePasswordPlugin{})	32✔
20	}	32✔
21
22	func (p *NativePasswordPlugin) PluginName() string {	32✔
23	return "mysql_native_password"	32✔
24	}	32✔
25
26	func (p NativePasswordPlugin) InitAuth(authData []byte, cfg Config) ([]byte, error) {	11,265✔
27	if !cfg.AllowNativePasswords {	11,329✔
28	return nil, ErrNativePassword	64✔
29	}	64✔
30	if cfg.Passwd == "" {	11,286✔
31	return nil, nil	85✔
32	}	85✔
33	return p.scramblePassword(authData[:20], cfg.Passwd), nil	11,116✔
34	}
35
36	// Hash password using 4.1+ method (SHA1)
37	func (p *NativePasswordPlugin) scramblePassword(scramble []byte, password string) []byte {	11,116✔
38	if len(password) == 0 {	11,116✔
NEW 39	return nil	×
NEW 40	}	×
41
42	// stage1Hash = SHA1(password)
43	crypt := sha1.New()	11,116✔
44	crypt.Write([]byte(password))	11,116✔
45	stage1 := crypt.Sum(nil)	11,116✔
46		11,116✔
47	// scrambleHash = SHA1(scramble + SHA1(stage1Hash))	11,116✔
48	// inner Hash	11,116✔
49	crypt.Reset()	11,116✔
50	crypt.Write(stage1)	11,116✔
51	hash := crypt.Sum(nil)	11,116✔
52		11,116✔
53	// outer Hash	11,116✔
54	crypt.Reset()	11,116✔
55	crypt.Write(scramble)	11,116✔
56	crypt.Write(hash)	11,116✔
57	scramble = crypt.Sum(nil)	11,116✔
58		11,116✔
59	// token = scrambleHash XOR stage1Hash	11,116✔
60	for i := range scramble {	233,436✔
61	scramble[i] ^= stage1[i]	222,320✔
62	}	222,320✔
63	return scramble	11,116✔
64	}

go-sql-driver / mysql / 14665995848

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