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| author | Guillaume Ballet <gballet@gmail.com> | 2017-12-11 19:32:58 +0800 |
|---|---|---|
| committer | Felix Lange <fjl@users.noreply.github.com> | 2017-12-11 19:32:58 +0800 |
| commit | e7610eadfee686d7d979e8d23d0b903a78288a13 (patch) | |
| tree | bad08f078627607d2293edc31ba53e3e061c0575 /whisper/whisperv6/message.go | |
| parent | 732f5468d33ae184dfa518fb75b9da87efeee940 (diff) | |
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whisper: sym encryption message padding includes salt (#15631)
Now that the AES salt has been moved to the payload, padding must
be adjusted to hide it, lest an attacker guesses that the packet
uses symmetric encryption.
Diffstat (limited to 'whisper/whisperv6/message.go')
| -rw-r--r-- | whisper/whisperv6/message.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/whisper/whisperv6/message.go b/whisper/whisperv6/message.go index 63bcdd85e..f8df50336 100644 --- a/whisper/whisperv6/message.go +++ b/whisper/whisperv6/message.go @@ -124,6 +124,10 @@ func (msg *sentMessage) appendPadding(params *MessageParams) error { if params.Src != nil { rawSize += signatureLength } + + if params.KeySym != nil { + rawSize += AESNonceLength + } odd := rawSize % padSizeLimit if len(params.Padding) != 0 { |