mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-25 13:07:17 +00:00
60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// signFile reads the contents of an input file and signs it (in armored format)
|
|
// with the key provided, placing the signature into the output file.
|
|
|
|
package build
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"os"
|
|
|
|
"golang.org/x/crypto/openpgp"
|
|
)
|
|
|
|
// PGPSignFile parses a PGP private key from the specified string and creates a
|
|
// signature file into the output parameter of the input file.
|
|
//
|
|
// Note, this method assumes a single key will be container in the pgpkey arg,
|
|
// furthermore that it is in armored format.
|
|
func PGPSignFile(input string, output string, pgpkey string) error {
|
|
// Parse the keyring and make sure we only have a single private key in it
|
|
keys, err := openpgp.ReadArmoredKeyRing(bytes.NewBufferString(pgpkey))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if len(keys) != 1 {
|
|
return fmt.Errorf("key count mismatch: have %d, want %d", len(keys), 1)
|
|
}
|
|
// Create the input and output streams for signing
|
|
in, err := os.Open(input)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer in.Close()
|
|
|
|
out, err := os.Create(output)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer out.Close()
|
|
|
|
// Generate the signature and return
|
|
return openpgp.ArmoredDetachSign(out, keys[0], in, nil)
|
|
}
|