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package pki
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import (
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	"bytes"
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	"crypto/ed25519"
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	"crypto/x509"
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	"encoding/pem"
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)
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func UnmarshalPrivateKey(pemBytes []byte) (ed25519.PrivateKey, error) {
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	p, _ := pem.Decode(pemBytes)
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	key, err := x509.ParsePKCS8PrivateKey(p.Bytes)
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	if err != nil {
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		return nil, err
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	}
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	if ed, ok := key.(ed25519.PrivateKey); ok {
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		return ed, nil
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	}
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	return nil, x509.ErrUnsupportedAlgorithm
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}
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func MarshalCertificate(derBytes []byte) (pemBytes []byte) {
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	certPEM := new(bytes.Buffer)
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	pem.Encode(certPEM, &pem.Block{
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		Type:  "CERTIFICATE",
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		Bytes: derBytes,
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	})
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	return certPEM.Bytes()
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}