/
key.go
41 lines (34 loc) · 787 Bytes
/
key.go
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package githubwebhook
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"golang.org/x/crypto/ssh"
)
// RawKeyPair can be written to disk.
type RawKeyPair struct {
Public []byte
Private []byte
}
// generateKey creates an RSA keypair ready to write to disk.
func generateKey() (RawKeyPair, error) {
rsaPriv, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return RawKeyPair{}, err
}
pub, err := ssh.NewPublicKey(&rsaPriv.PublicKey)
if err != nil {
return RawKeyPair{}, err
}
pksc1PrivateKey := x509.MarshalPKCS1PrivateKey(rsaPriv)
priv := pem.Block{
Type: "RSA PRIVATE KEY",
Headers: nil,
Bytes: pksc1PrivateKey,
}
return RawKeyPair{
Public: ssh.MarshalAuthorizedKey(pub),
Private: pem.EncodeToMemory(&priv),
}, nil
}