/
certutils.go
189 lines (146 loc) · 5.25 KB
/
certutils.go
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// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package utils
import (
"crypto"
"crypto/rand"
"crypto/x509"
"encoding/pem"
"os"
"github.com/tjfoc/gmsm/sm2"
)
// CreateCertificateToMem 证书转mem
func CreateCertificateToMem(template, parent *sm2.Certificate, key crypto.Signer) ([]byte, error) {
pub, _ := template.PublicKey.(*sm2.PublicKey)
var puk sm2.PublicKey
puk.Curve = sm2.P256Sm2()
puk.X = pub.X
puk.Y = pub.Y
der, err := sm2.CreateCertificate(rand.Reader, template, parent, &puk, key)
if err != nil {
return nil, err
}
block := &pem.Block{
Type: "CERTIFICATE",
Bytes: der,
}
return pem.EncodeToMemory(block), nil
}
// CreateCertificateToPem 证书转pem
func CreateCertificateToPem(FileName string, template, parent *sm2.Certificate, key crypto.Signer) error {
pub, _ := template.PublicKey.(*sm2.PublicKey)
var puk sm2.PublicKey
puk.Curve = sm2.P256Sm2()
puk.X = pub.X
puk.Y = pub.Y
der, err := sm2.CreateCertificate(rand.Reader, template, parent, &puk, key)
if err != nil {
return err
}
block := &pem.Block{
Type: "CERTIFICATE",
Bytes: der,
}
file, err := os.Create(FileName)
if err != nil {
return err
}
defer file.Close()
err = pem.Encode(file, block)
if err != nil {
return err
}
return nil
}
// ParseX509CertificateToSm2 解析x509格式为sm2格式证书
func ParseX509CertificateToSm2(x509Cert *x509.Certificate) *sm2.Certificate {
sm2cert := &sm2.Certificate{
Raw: x509Cert.Raw,
RawTBSCertificate: x509Cert.RawTBSCertificate,
RawSubjectPublicKeyInfo: x509Cert.RawSubjectPublicKeyInfo,
RawSubject: x509Cert.RawSubject,
RawIssuer: x509Cert.RawIssuer,
Signature: x509Cert.Signature,
SignatureAlgorithm: sm2.SM2WithSM3,
PublicKeyAlgorithm: sm2.PublicKeyAlgorithm(x509Cert.PublicKeyAlgorithm),
PublicKey: x509Cert.PublicKey,
Version: x509Cert.Version,
SerialNumber: x509Cert.SerialNumber,
Issuer: x509Cert.Issuer,
Subject: x509Cert.Subject,
NotBefore: x509Cert.NotBefore,
NotAfter: x509Cert.NotAfter,
KeyUsage: sm2.KeyUsage(x509Cert.KeyUsage),
Extensions: x509Cert.Extensions,
ExtraExtensions: x509Cert.ExtraExtensions,
UnhandledCriticalExtensions: x509Cert.UnhandledCriticalExtensions,
UnknownExtKeyUsage: x509Cert.UnknownExtKeyUsage,
BasicConstraintsValid: x509Cert.BasicConstraintsValid,
IsCA: x509Cert.IsCA,
MaxPathLen: x509Cert.MaxPathLen,
MaxPathLenZero: x509Cert.MaxPathLenZero,
SubjectKeyId: x509Cert.SubjectKeyId,
AuthorityKeyId: x509Cert.AuthorityKeyId,
OCSPServer: x509Cert.OCSPServer,
IssuingCertificateURL: x509Cert.IssuingCertificateURL,
DNSNames: x509Cert.DNSNames,
EmailAddresses: x509Cert.EmailAddresses,
IPAddresses: x509Cert.IPAddresses,
PermittedDNSDomainsCritical: x509Cert.PermittedDNSDomainsCritical,
PermittedDNSDomains: x509Cert.PermittedDNSDomains,
CRLDistributionPoints: x509Cert.CRLDistributionPoints,
PolicyIdentifiers: x509Cert.PolicyIdentifiers,
}
for _, val := range x509Cert.ExtKeyUsage {
sm2cert.ExtKeyUsage = append(sm2cert.ExtKeyUsage, sm2.ExtKeyUsage(val))
}
return sm2cert
}
// ParseSm2CertificateToX509 解析sm2格式证书为x509格式
func ParseSm2CertificateToX509(sm2Cert *sm2.Certificate) *x509.Certificate {
if sm2Cert == nil {
return nil
}
x509cert := &x509.Certificate{
Raw: sm2Cert.Raw,
RawTBSCertificate: sm2Cert.RawTBSCertificate,
RawSubjectPublicKeyInfo: sm2Cert.RawSubjectPublicKeyInfo,
RawSubject: sm2Cert.RawSubject,
RawIssuer: sm2Cert.RawIssuer,
Signature: sm2Cert.Signature,
SignatureAlgorithm: x509.SignatureAlgorithm(sm2Cert.SignatureAlgorithm),
PublicKeyAlgorithm: x509.PublicKeyAlgorithm(sm2Cert.PublicKeyAlgorithm),
PublicKey: sm2Cert.PublicKey,
Version: sm2Cert.Version,
SerialNumber: sm2Cert.SerialNumber,
Issuer: sm2Cert.Issuer,
Subject: sm2Cert.Subject,
NotBefore: sm2Cert.NotBefore,
NotAfter: sm2Cert.NotAfter,
KeyUsage: x509.KeyUsage(sm2Cert.KeyUsage),
Extensions: sm2Cert.Extensions,
ExtraExtensions: sm2Cert.ExtraExtensions,
UnhandledCriticalExtensions: sm2Cert.UnhandledCriticalExtensions,
UnknownExtKeyUsage: sm2Cert.UnknownExtKeyUsage,
BasicConstraintsValid: sm2Cert.BasicConstraintsValid,
IsCA: sm2Cert.IsCA,
MaxPathLen: sm2Cert.MaxPathLen,
MaxPathLenZero: sm2Cert.MaxPathLenZero,
SubjectKeyId: sm2Cert.SubjectKeyId,
AuthorityKeyId: sm2Cert.AuthorityKeyId,
OCSPServer: sm2Cert.OCSPServer,
IssuingCertificateURL: sm2Cert.IssuingCertificateURL,
DNSNames: sm2Cert.DNSNames,
EmailAddresses: sm2Cert.EmailAddresses,
IPAddresses: sm2Cert.IPAddresses,
PermittedDNSDomainsCritical: sm2Cert.PermittedDNSDomainsCritical,
PermittedDNSDomains: sm2Cert.PermittedDNSDomains,
CRLDistributionPoints: sm2Cert.CRLDistributionPoints,
PolicyIdentifiers: sm2Cert.PolicyIdentifiers,
}
for _, val := range sm2Cert.ExtKeyUsage {
x509cert.ExtKeyUsage = append(x509cert.ExtKeyUsage, x509.ExtKeyUsage(val))
}
return x509cert
}