forgejo/modules/auth/password/hash/setting.go
zeripath c702e7995d
Provide the ability to set password hash algorithm parameters (#22942) (#22943)
Backport #22942

This PR refactors and improves the password hashing code within gitea
and makes it possible for server administrators to set the password
hashing parameters

In addition it takes the opportunity to adjust the settings for `pbkdf2`
in order to make the hashing a little stronger.

The majority of this work was inspired by PR #14751 and I would like to
thank @boppy for their work on this.

Thanks to @gusted for the suggestion to adjust the `pbkdf2` hashing
parameters.

Close #14751

---------

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-19 15:35:52 +08:00

45 lines
1.3 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package hash
const DefaultHashAlgorithmName = "pbkdf2"
var DefaultHashAlgorithm *PasswordHashAlgorithm
var aliasAlgorithmNames = map[string]string{
"argon2": "argon2$2$65536$8$50",
"bcrypt": "bcrypt$10",
"scrypt": "scrypt$65536$16$2$50",
"pbkdf2": "pbkdf2_v2", // pbkdf2 should default to pbkdf2_v2
"pbkdf2_v1": "pbkdf2$10000$50",
// The latest PBKDF2 password algorithm is used as the default since it doesn't
// use a lot of memory and is safer to use on less powerful devices.
"pbkdf2_v2": "pbkdf2$50000$50",
// The pbkdf2_hi password algorithm is offered as a stronger alternative to the
// slightly improved pbkdf2_v2 algorithm
"pbkdf2_hi": "pbkdf2$320000$50",
}
var RecommendedHashAlgorithms = []string{
"pbkdf2",
"argon2",
"bcrypt",
"scrypt",
"pbkdf2_hi",
}
func SetDefaultPasswordHashAlgorithm(algorithmName string) (string, *PasswordHashAlgorithm) {
if algorithmName == "" {
algorithmName = DefaultHashAlgorithmName
}
alias, has := aliasAlgorithmNames[algorithmName]
for has {
algorithmName = alias
alias, has = aliasAlgorithmNames[algorithmName]
}
DefaultHashAlgorithm = Parse(algorithmName)
return algorithmName, DefaultHashAlgorithm
}