mirror of
https://github.com/casdoor/casdoor.git
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71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
// Copyright 2021 The Casdoor Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package object
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import (
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"crypto/rand"
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"crypto/rsa"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"math/big"
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"time"
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)
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func generateRsaKeys(bitSize int, expireInYears int, commonName string, organization string) (string, string, error) {
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// https://stackoverflow.com/questions/64104586/use-golang-to-get-rsa-key-the-same-way-openssl-genrsa
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// https://stackoverflow.com/questions/43822945/golang-can-i-create-x509keypair-using-rsa-key
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// Generate RSA key.
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key, err := rsa.GenerateKey(rand.Reader, bitSize)
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if err != nil {
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return "", "", err
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}
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// Encode private key to PKCS#1 ASN.1 PEM.
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privateKeyPem := pem.EncodeToMemory(
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&pem.Block{
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Type: "RSA PRIVATE KEY",
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Bytes: x509.MarshalPKCS1PrivateKey(key),
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},
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)
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tml := x509.Certificate{
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// you can add any attr that you need
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NotBefore: time.Now(),
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NotAfter: time.Now().AddDate(expireInYears, 0, 0),
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// you have to generate a different serial number each execution
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SerialNumber: big.NewInt(123456),
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Subject: pkix.Name{
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CommonName: commonName,
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Organization: []string{organization},
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},
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BasicConstraintsValid: true,
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}
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cert, err := x509.CreateCertificate(rand.Reader, &tml, &tml, &key.PublicKey, key)
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if err != nil {
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return "", "", err
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}
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// Generate a pem block with the certificate
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certPem := pem.EncodeToMemory(&pem.Block{
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Type: "CERTIFICATE",
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Bytes: cert,
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})
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return string(certPem), string(privateKeyPem), nil
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}
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