mirror of
https://github.com/golang/go
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41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
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// 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/block"
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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, os.O_RDONLY, 0)
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var w io.Writer
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w, _ = os.Open(dstfile, os.O_WRONLY|os.O_CREATE, 0666)
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c, _ := aes.NewCipher(key)
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w = block.NewOFBWriter(c, iv, w)
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w2, _ := gzip.NewDeflater(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, os.O_RDONLY, 0)
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defer f.Close()
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c, _ := aes.NewCipher(key)
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r := block.NewOFBReader(c, iv, f)
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r, _ = gzip.NewInflater(r)
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w, _ := os.Open(dstfile, os.O_WRONLY|os.O_CREATE, 0666)
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defer w.Close()
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io.Copy(w, r)
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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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