86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
// Copyright (C) 2023-2024 Umorpha Systems
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// SPDX-License-Identifier: AGPL-3.0-or-later
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package apikeys
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import (
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"crypto/ed25519"
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"crypto/x509"
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"encoding/pem"
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"os"
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"github.com/golang-jwt/jwt/v5"
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)
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var signingMethod = jwt.SigningMethodEdDSA
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type PublicKey = ed25519.PublicKey
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func GenerateLeaderKeys() (ed25519.PublicKey, ed25519.PrivateKey, error) {
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return ed25519.GenerateKey(nil)
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}
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func LoadLeaderPubKey(filename string) (ed25519.PublicKey, error) {
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bs, err := os.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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ret, err := jwt.ParseEdPublicKeyFromPEM(bs)
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if err != nil {
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return nil, err
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}
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return ret.(ed25519.PublicKey), nil
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}
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func LoadLeaderPrivKey(filename string) (ed25519.PrivateKey, error) {
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bs, err := os.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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ret, err := jwt.ParseEdPrivateKeyFromPEM(bs)
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if err != nil {
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return nil, err
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}
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return ret.(ed25519.PrivateKey), nil
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}
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func WriteLeaderPubKey(filename string, pubKey ed25519.PublicKey) error {
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bs, err := x509.MarshalPKIXPublicKey(pubKey)
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if err != nil {
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return err
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}
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bs = pem.EncodeToMemory(&pem.Block{
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Type: "PUBLIC KEY",
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Bytes: bs,
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})
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return os.WriteFile(filename, bs, 0400)
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}
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func WriteLeaderPrivKey(filename string, privKey ed25519.PrivateKey) error {
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bs, err := x509.MarshalPKCS8PrivateKey(privKey)
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if err != nil {
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return err
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}
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bs = pem.EncodeToMemory(&pem.Block{
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Type: "PRIVATE KEY",
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Bytes: bs,
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})
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return os.WriteFile(filename, bs, 0444)
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}
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func GenerateAPIKey(leaderPrivKey ed25519.PrivateKey) (string, error) {
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return jwt.NewWithClaims(signingMethod, jwt.MapClaims{
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"TOOD": "TODO",
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}).SignedString(leaderPrivKey)
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}
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var apikeyParser = jwt.NewParser(
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jwt.WithStrictDecoding(),
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jwt.WithValidMethods([]string{signingMethod.Alg()}))
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func ValidateAPIKey(leaderPubKey ed25519.PublicKey, apikey string) error {
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_, err := apikeyParser.Parse(apikey, func(*jwt.Token) (any, error) {
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return leaderPubKey, nil
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})
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return err
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}
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