remove unused helper

reseed/cert.go

@@ -1,99 +0,0 @@
-package reseed
-
-import (
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/pem"
-	"fmt"
-	"log"
-	"math/big"
-	"net"
-	"os"
-	"strings"
-	"time"
-)
-
-func GenerateCert(host string, validFrom string, validFor time.Duration, isCA bool, rsaBits int) {
-	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)
-		return
-	}
-
-	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)
-			return
-		}
-	}
-
-	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)
-		return
-	}
-
-	template := x509.Certificate{
-		SerialNumber: serialNumber,
-		Subject: pkix.Name{
-			Organization: []string{"I2P"},
-		},
-		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)
-		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")
-}