// tmphash — 一次性:按服务端 argon2id 参数算密码 hash(临时,不提交)。
package main

import (
	"crypto/rand"
	"encoding/base64"
	"fmt"
	"os"

	"golang.org/x/crypto/argon2"
)

func main() {
	pw := "wangjia812"
	if len(os.Args) > 1 {
		pw = os.Args[1]
	}
	salt := make([]byte, 16)
	if _, err := rand.Read(salt); err != nil {
		panic(err)
	}
	key := argon2.IDKey([]byte(pw), salt, uint32(1), uint32(65536), uint8(4), uint32(32))
	fmt.Printf("$argon2id$v=%d$m=%d,t=%d,p=%d$%s$%s\n",
		argon2.Version, 65536, 1, 4,
		base64.RawStdEncoding.EncodeToString(salt),
		base64.RawStdEncoding.EncodeToString(key))
}