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certimate/internal/pkg/utils/cert/converter.go
2025-04-22 22:12:58 +08:00

57 lines
1.1 KiB
Go

package certutil
import (
"crypto/ecdsa"
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
)
// 将 x509.Certificate 对象转换为 PEM 编码的字符串。
//
// 入参:
// - cert: x509.Certificate 对象。
//
// 出参:
// - certPEM: 证书 PEM 内容。
// - err: 错误。
func ConvertCertificateToPEM(cert *x509.Certificate) (certPEM string, err error) {
if cert == nil {
return "", errors.New("`cert` is nil")
}
block := &pem.Block{
Type: "CERTIFICATE",
Bytes: cert.Raw,
}
return string(pem.EncodeToMemory(block)), nil
}
// 将 ecdsa.PrivateKey 对象转换为 PEM 编码的字符串。
//
// 入参:
// - privkey: ecdsa.PrivateKey 对象。
//
// 出参:
// - privkeyPEM: 私钥 PEM 内容。
// - err: 错误。
func ConvertECPrivateKeyToPEM(privkey *ecdsa.PrivateKey) (privkeyPEM string, err error) {
if privkey == nil {
return "", errors.New("`privkey` is nil")
}
data, err := x509.MarshalECPrivateKey(privkey)
if err != nil {
return "", fmt.Errorf("failed to marshal EC private key: %w", err)
}
block := &pem.Block{
Type: "EC PRIVATE KEY",
Bytes: data,
}
return string(pem.EncodeToMemory(block)), nil
}