Subversion Repositories openrisc

// Copyright 2009 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Generate a self-signed X.509 certificate for a TLS server. Outputs to

// 'cert.pem' and 'key.pem' and will overwrite existing files.

package main

import (

        "crypto/rand"

        "crypto/rsa"

        "crypto/x509"

        "crypto/x509/pkix"

        "encoding/pem"

        "flag"

        "log"

        "math/big"

        "os"

        "time"

)

var hostName *string = flag.String("host", "127.0.0.1", "Hostname to generate a certificate for")

func main() {

        flag.Parse()

        priv, err := rsa.GenerateKey(rand.Reader, 1024)

        if err != nil {

                log.Fatalf("failed to generate private key: %s", err)

                return

        }

        now := time.Now()

        template := x509.Certificate{

                SerialNumber: new(big.Int).SetInt64(0),

                Subject: pkix.Name{

                        CommonName:   *hostName,

                        Organization: []string{"Acme Co"},

                },

                NotBefore: now.Add(-5 * time.Minute).UTC(),

                NotAfter:  now.AddDate(1, 0, 0).UTC(), // valid for 1 year.

                SubjectKeyId: []byte{1, 2, 3, 4},

                KeyUsage:     x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,

        }

        derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &priv.PublicKey, priv)

        if err != nil {

                log.Fatalf("Failed to create certificate: %s", err)

                return

        }

        certOut, err := os.Create("cert.pem")

        if err != nil {

                log.Fatalf("failed to open cert.pem for writing: %s", err)

                return

        }

        pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})

        certOut.Close()

        log.Print("written cert.pem\n")

        keyOut, err := os.OpenFile("key.pem", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)

        if err != nil {

                log.Print("failed to open key.pem for writing:", err)

                return

        }

        pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(priv)})

        keyOut.Close()

        log.Print("written key.pem\n")

}