rogueserver/api/account/common.go

55 lines
1.3 KiB
Go

/*
Copyright (C) 2024 Pagefault Games
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package account
import (
"regexp"
"runtime"
"golang.org/x/crypto/argon2"
)
type GenericAuthResponse struct {
Token string `json:"token"`
}
const (
ArgonTime = 1
ArgonMemory = 256 * 1024
ArgonThreads = 4
ArgonKeySize = 32
ArgonSaltSize = 16
UUIDSize = 16
TokenSize = 32
)
var (
ArgonMaxInstances = runtime.NumCPU()
isValidUsername = regexp.MustCompile(`^\w{1,16}$`).MatchString
semaphore = make(chan bool, ArgonMaxInstances)
)
func deriveArgon2IDKey(password, salt []byte) []byte {
semaphore <- true
defer func() { <-semaphore }()
return argon2.IDKey(password, salt, ArgonTime, ArgonMemory, ArgonThreads, ArgonKeySize)
}