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41 lines
996 B
Go
41 lines
996 B
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"crypto/aes"
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"crypto/cipher"
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"compress/gzip"
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"io"
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"os"
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)
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func EncryptAndGzip(dstfile, srcfile string, key, iv []byte) {
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r, _ := os.Open(srcfile)
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var w io.Writer
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w, _ = os.Create(dstfile)
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c, _ := aes.NewCipher(key)
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w = cipher.StreamWriter{S: cipher.NewOFB(c, iv), W: w}
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w2, _ := gzip.NewWriter(w)
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io.Copy(w2, r)
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w2.Close()
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}
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func DecryptAndGunzip(dstfile, srcfile string, key, iv []byte) {
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f, _ := os.Open(srcfile)
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defer f.Close()
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c, _ := aes.NewCipher(key)
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r := cipher.StreamReader{S: cipher.NewOFB(c, iv), R: f}
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r2, _ := gzip.NewReader(r)
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w, _ := os.Create(dstfile)
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defer w.Close()
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io.Copy(w, r2)
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}
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func main() {
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EncryptAndGzip("/tmp/passwd.gz", "/etc/passwd", make([]byte, 16), make([]byte, 16))
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DecryptAndGunzip("/dev/stdout", "/tmp/passwd.gz", make([]byte, 16), make([]byte, 16))
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}
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