| // Copyright 2010 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package main |
| |
| import ( |
| "crypto/aes" |
| "crypto/block" |
| "compress/gzip" |
| "io" |
| "os" |
| ) |
| |
| func EncryptAndGzip(dstfile, srcfile string, key, iv []byte) { |
| r, _ := os.Open(srcfile, os.O_RDONLY, 0) |
| var w io.Writer |
| w, _ = os.Open(dstfile, os.O_WRONLY|os.O_CREATE, 0666) |
| c, _ := aes.NewCipher(key) |
| w = block.NewOFBWriter(c, iv, w) |
| w2, _ := gzip.NewDeflater(w) |
| io.Copy(w2, r) |
| w2.Close() |
| } |
| |
| func DecryptAndGunzip(dstfile, srcfile string, key, iv []byte) { |
| f, _ := os.Open(srcfile, os.O_RDONLY, 0) |
| defer f.Close() |
| c, _ := aes.NewCipher(key) |
| r := block.NewOFBReader(c, iv, f) |
| r, _ = gzip.NewInflater(r) |
| w, _ := os.Open(dstfile, os.O_WRONLY|os.O_CREATE, 0666) |
| defer w.Close() |
| io.Copy(w, r) |
| } |
| |
| func main() { |
| EncryptAndGzip("/tmp/passwd.gz", "/etc/passwd", make([]byte, 16), make([]byte, 16)) |
| DecryptAndGunzip("/dev/stdout", "/tmp/passwd.gz", make([]byte, 16), make([]byte, 16)) |
| } |