func parsePrivateKey()

in signature/golang/client/client.go [127:143]

• 17 lines of code
• 4 McCabe index (conditional complexity)

func parsePrivateKey(privateKey string) (*rsa.PrivateKey, error) {
	privateKey = formatPrivateKey(privateKey)
	block, _ := pem.Decode([]byte(privateKey))
	if block == nil {
		return nil, errors.New("PrivateKey is invalid")
	}
	priKey, err := x509.ParsePKCS8PrivateKey(block.Bytes)
	if err != nil {
		return nil, err
	}
	switch priKey.(type) {
	case *rsa.PrivateKey:
		return priKey.(*rsa.PrivateKey), nil
	default:
		return nil, nil
	}
}