diff options
Diffstat (limited to 'src/pkg/crypto/tls/generate_cert.go')
-rw-r--r-- | src/pkg/crypto/tls/generate_cert.go | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/src/pkg/crypto/tls/generate_cert.go b/src/pkg/crypto/tls/generate_cert.go deleted file mode 100644 index 5c6d8396d..000000000 --- a/src/pkg/crypto/tls/generate_cert.go +++ /dev/null @@ -1,115 +0,0 @@ -// 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. - -// +build ignore - -// 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" - "fmt" - "log" - "math/big" - "net" - "os" - "strings" - "time" -) - -var ( - host = flag.String("host", "", "Comma-separated hostnames and IPs to generate a certificate for") - validFrom = flag.String("start-date", "", "Creation date formatted as Jan 1 15:04:05 2011") - validFor = flag.Duration("duration", 365*24*time.Hour, "Duration that certificate is valid for") - isCA = flag.Bool("ca", false, "whether this cert should be its own Certificate Authority") - rsaBits = flag.Int("rsa-bits", 2048, "Size of RSA key to generate") -) - -func main() { - flag.Parse() - - if len(*host) == 0 { - log.Fatalf("Missing required --host parameter") - } - - priv, err := rsa.GenerateKey(rand.Reader, *rsaBits) - if err != nil { - log.Fatalf("failed to generate private key: %s", err) - } - - var notBefore time.Time - if len(*validFrom) == 0 { - notBefore = time.Now() - } else { - notBefore, err = time.Parse("Jan 2 15:04:05 2006", *validFrom) - if err != nil { - fmt.Fprintf(os.Stderr, "Failed to parse creation date: %s\n", err) - os.Exit(1) - } - } - - notAfter := notBefore.Add(*validFor) - - serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128) - serialNumber, err := rand.Int(rand.Reader, serialNumberLimit) - if err != nil { - log.Fatalf("failed to generate serial number: %s", err) - } - - template := x509.Certificate{ - SerialNumber: serialNumber, - Subject: pkix.Name{ - Organization: []string{"Acme Co"}, - }, - NotBefore: notBefore, - NotAfter: notAfter, - - KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature, - ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}, - BasicConstraintsValid: true, - } - - hosts := strings.Split(*host, ",") - for _, h := range hosts { - if ip := net.ParseIP(h); ip != nil { - template.IPAddresses = append(template.IPAddresses, ip) - } else { - template.DNSNames = append(template.DNSNames, h) - } - } - - if *isCA { - template.IsCA = true - template.KeyUsage |= x509.KeyUsageCertSign - } - - derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &priv.PublicKey, priv) - if err != nil { - log.Fatalf("Failed to create certificate: %s", err) - } - - certOut, err := os.Create("cert.pem") - if err != nil { - log.Fatalf("failed to open cert.pem for writing: %s", err) - } - 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") -} |