间接上代码
package mainimport ( "crypto/rand" "crypto/rsa" "crypto/x509" "crypto/x509/pkix" "encoding/pem" "math/big" "net" "os" "time")func main() { max := new(big.Int).Lsh(big.NewInt(1), 128) serialNumber, _ := rand.Int(rand.Reader, max) subject := pkix.Name{ Country: []string{"CN"}, Province: []string{"BeiJing"}, Organization: []string{"Devops"}, OrganizationalUnit: []string{"certDevops"}, CommonName: "127.0.0.1", } template := x509.Certificate{ SerialNumber: serialNumber, Subject: subject, NotBefore: time.Now(), NotAfter: time.Now().Add(365 * 24 * time.Hour), KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature, ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}, IPAddresses: []net.IP{net.ParseIP("127.0.0.1")}, } pk, _ := rsa.GenerateKey(rand.Reader, 2048) derBytes, _ := x509.CreateCertificate(rand.Reader, &template, &template, &pk.PublicKey, pk) certOut, _ := os.Create("server.pem") pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}) certOut.Close() keyOut, _ := os.Create("server.key") pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(pk)}) keyOut.Close()}下面代码生成了一个证书和私钥，有效期为 1 年。运行程序，失去两个文件server.pem和server.key。