Files
scm/crt/CreateRootKeyCertificate.go
wt d5da23849f
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refactor
2025-07-21 22:16:54 +07:00

93 lines
1.9 KiB
Go

package crt
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"fmt"
"math/big"
"os"
"scm/model"
"scm/utils"
"time"
"github.com/youmark/pkcs8"
)
func CreateRootKeyCertificate(data model.CreateRootCertRequest) error {
privkey, err := rsa.GenerateKey(rand.Reader, 4096)
if err != nil {
return err
}
serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
if err != nil {
return err
}
template := x509.Certificate{
SerialNumber: serialNumber,
Subject: pkix.Name{
CommonName: data.CommonName,
OrganizationalUnit: data.OrganizationalUnit,
Organization: data.Organization,
Country: data.Country,
Locality: data.Locality,
Province: data.Province,
StreetAddress: data.StreetAddress,
PostalCode: data.PostalCode,
SerialNumber: serialNumber.String(),
},
NotBefore: time.Now(),
NotAfter: time.Now().AddDate(data.ValidityYears, 0, 0),
KeyUsage: x509.KeyUsageCertSign | x509.KeyUsageCRLSign | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{
x509.ExtKeyUsageServerAuth,
x509.ExtKeyUsageClientAuth,
},
BasicConstraintsValid: true,
IsCA: true,
}
cert, err := x509.CreateCertificate(rand.Reader, &template, &template, &privkey.PublicKey, privkey)
if err != nil {
return err
}
encryptedKey, err := pkcs8.ConvertPrivateKeyToPKCS8(
privkey,
[]byte(data.KeyPassword),
)
if err != nil {
return err
}
err = utils.CheckExistsOrCreateDir("root")
if err != nil {
return err
}
err = SavePEMFile(fmt.Sprintf(
"%s/%s",
os.Getenv("CERTS_PATH"),
"root/root.crt",
),
"CERTIFICATE",
cert,
)
if err != nil {
return err
}
err = SavePEMFile(fmt.Sprintf(
"%s/%s",
os.Getenv("CERTS_PATH"),
"root/root.key",
), "ENCRYPTED PRIVATE KEY", encryptedKey)
if err != nil {
return err
}
return nil
}