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x509_rsa_cert.go
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x509_rsa_cert.go
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package signer
import (
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"errors"
"math/big"
)
type x509RSACert struct {
serialNumber *big.Int
certificate *x509.Certificate
privateKey *rsa.PrivateKey
certificateBytes []byte
privateKeyBytes []byte
}
func Parsex509RSACert(certificateBytes []byte, privateKeyBytes []byte) (RSACert, error) {
certificate, err := ParseX509Certificate(certificateBytes)
if err != nil {
return nil, err
}
privateKey, err := ParseRsaPrivateKey(privateKeyBytes)
if err != nil {
return nil, err
}
return &x509RSACert{
serialNumber: certificate.SerialNumber,
certificate: certificate,
privateKey: privateKey,
certificateBytes: certificateBytes,
privateKeyBytes: privateKeyBytes,
}, nil
}
func ParseX509Certificate(bytes []byte) (*x509.Certificate, error) {
block, _ := pem.Decode(bytes)
if block == nil {
return nil, errors.New("ParseX509Certificate: pem format incorrect")
}
cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
return nil, err
}
return cert, nil
}
func ParseRsaPrivateKey(bytes []byte) (*rsa.PrivateKey, error) {
block, _ := pem.Decode(bytes)
if block == nil {
return nil, errors.New("ParseRsaPrivateKey: pem format incorrect")
}
pri, err := x509.ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
return nil, err
}
return pri, nil
}
func (cert *x509RSACert) GetSerialNumber() *big.Int {
return cert.serialNumber
}
func (cert *x509RSACert) GetCertificate() *x509.Certificate {
return cert.certificate
}
func (cert *x509RSACert) GetPrivateKey() *rsa.PrivateKey {
return cert.privateKey
}
func (cert *x509RSACert) GetCertificateBytes() []byte {
return cert.certificateBytes
}
func (cert *x509RSACert) GetPrivateKeyBytes() []byte {
return cert.privateKeyBytes
}