/
mainencdec.go
58 lines (46 loc) · 1.16 KB
/
mainencdec.go
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package main
import (
"fmt"
"io/ioutil"
"math/rand"
"github.com/opensds/multi-cloud/s3/pkg/utils"
)
func main() {
doEncAndDec()
}
func doEncAndDec() {
content, err := ioutil.ReadFile("/root/smallimg.jpg")
if err != nil {
fmt.Println(err)
}
key, _ := GetRandom32BitKey()
// encrypt
_, encData := utils.EncryptWithAES256RandomKey(content, key)
// write file to disk
wencerr := ioutil.WriteFile("/root/smallimgenc.jpg", encData, 0777)
if wencerr != nil {
fmt.Println(wencerr)
}
fmt.Println("encrypted file written to disk, Press the Enter Key to decrypt after download from aws!")
fmt.Scanln() // wait for Enter Key
// decrypt
encContent, rencerr := ioutil.ReadFile("/root/smallimgaws.jpg")
if rencerr != nil {
fmt.Println(rencerr)
}
_, decData := utils.DecryptWithAES256(encContent, key)
werr := ioutil.WriteFile("/root/smallimgdec.jpg", decData, 0777)
if werr != nil {
fmt.Println(werr)
}
}
func GetRandom32BitKey() ([]byte, error) {
key := make([]byte, 32)
_, err := rand.Read(key)
if err != nil {
fmt.Errorf("Error generating random 32 bit key %s", err)
return nil, err
}
fmt.Println("Generated random 32 bit key")
return key, nil
}