51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"git.zero-knowledge.org/gibheer/pki"
|
|
)
|
|
|
|
func loadPrivateKey(path string) (pki.PrivateKey, error) {
|
|
if path == "" {
|
|
return nil, fmt.Errorf("no path given")
|
|
}
|
|
var err error
|
|
file, err := os.Open(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer file.Close()
|
|
info, err := file.Stat()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if info.Mode().Perm().String()[4:] != "------" {
|
|
return nil, fmt.Errorf("private key must not be readable for group or world")
|
|
}
|
|
|
|
pems, err := parseFile(file)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not load private key: %s", err)
|
|
}
|
|
if len(pems) > 1 {
|
|
return nil, fmt.Errorf("more than one object in file")
|
|
}
|
|
|
|
for key, parts := range pems {
|
|
if len(parts) > 1 {
|
|
return nil, fmt.Errorf("more than one object found")
|
|
}
|
|
switch key {
|
|
case pki.PemLabelRsa:
|
|
return pki.LoadPrivateKeyRsa(parts[0])
|
|
case pki.PemLabelEd25519:
|
|
return pki.LoadPrivateKeyEd25519(parts[0])
|
|
case pki.PemLabelEcdsa:
|
|
return pki.LoadPrivateKeyEcdsa(parts[0])
|
|
}
|
|
}
|
|
return nil, fmt.Errorf("no private key found in file '%s'", path)
|
|
}
|