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Use Seal/Open everywhere

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This commit is contained in:
Alexander Neumann
2017-10-29 11:33:57 +01:00
parent a5f0e9ab65
commit 931e6ed2ac
6 changed files with 49 additions and 59 deletions
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18
internal/pack/pack.go
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@@ -75,10 +75,10 @@ func (p *Packer) Finalize() (uint, error) {
return 0, err
}
encryptedHeader, err := p.k.Encrypt(nil, hdrBuf.Bytes())
if err != nil {
return 0, err
}
encryptedHeader := make([]byte, 0, hdrBuf.Len()+p.k.Overhead()+p.k.NonceSize())
nonce := crypto.NewRandomNonce()
encryptedHeader = append(encryptedHeader, nonce...)
encryptedHeader = p.k.Seal(encryptedHeader, nonce, hdrBuf.Bytes(), nil)
// append the header
n, err := p.wr.Write(encryptedHeader)
@@ -268,15 +268,19 @@ func List(k *crypto.Key, rd io.ReaderAt, size int64) (entries []restic.Blob, err
return nil, err
}
n, err := k.Decrypt(buf, buf)
if len(buf) < k.NonceSize()+k.Overhead() {
return nil, errors.New("invalid header, too small")
}
nonce, buf := buf[:k.NonceSize()], buf[k.NonceSize():]
buf, err = k.Open(buf[:0], nonce, buf, nil)
if err != nil {
return nil, err
}
buf = buf[:n]
hdrRd := bytes.NewReader(buf)
entries = make([]restic.Blob, 0, uint(n)/entrySize)
entries = make([]restic.Blob, 0, uint(len(buf))/entrySize)
pos := uint(0)
for {