81 lines
1.4 KiB
Go
81 lines
1.4 KiB
Go
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package main
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import (
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"crypto/sha1"
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"encoding/hex"
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"syscall/js"
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"unicode/utf8"
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"golang.org/x/crypto/pbkdf2"
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)
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func main() {
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js.Global().Set("generateWpa2Pmk", GenerateWpa2PmkWrapper())
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<-make(chan bool)
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}
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func GenerateWpa2PmkWrapper() js.Func {
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jsonFunc := js.FuncOf(func(this js.Value, args []js.Value) interface{} {
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if len(args) != 2 {
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return "error"
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}
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return GenerateWpa2Pmk(args[0].String(), args[1].String())
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})
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return jsonFunc
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}
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func GenerateWpa2Pmk(passphrase string, ssid string) string {
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if !isValidPassphrase(passphrase) {
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return "error"
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}
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if !isValidSSID(ssid) {
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return "error"
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}
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return hex.EncodeToString(
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pbkdf2.Key(
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[]byte(passphrase),
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[]byte(ssid),
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4096,
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32,
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sha1.New,
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),
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)
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}
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func isValidPassphrase(passphrase string) bool {
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length_passphrase := utf8.RuneCountInString(passphrase)
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if length_passphrase < 8 || length_passphrase > 63 {
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return false
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}
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// ASCII characters from 32 to 126 are valid
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for i := 0; i < len(passphrase); i++ {
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if passphrase[i] < 32 || passphrase[i] > 126 {
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return false
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}
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}
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return true
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}
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func isValidSSID(ssid string) bool {
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length_ssid := utf8.RuneCountInString(ssid)
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if length_ssid < 1 || length_ssid > 32 {
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return false
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}
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// ASCII characters from 32 to 126 are valid
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for i := 0; i < len(ssid); i++ {
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if ssid[i] < 32 || ssid[i] > 126 {
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return false
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}
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}
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return true
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}
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