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whisper: padding test updated

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This commit is contained in:
Vlad 2017-04-15 23:28:52 +02:00
parent 75909a1694
commit a96ba2af42
2 changed files with 17 additions and 9 deletions
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2
whisper/whisperv5/doc.go
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@ -56,7 +56,7 @@ const (
keyIdSize = 32 keyIdSize = 32
DefaultMaxMessageLength = 1024 * 1024 DefaultMaxMessageLength = 1024 * 1024
DefaultMinimumPoW = 1.0 // todo: review after testing. DefaultMinimumPoW = 1.0
padSizeLimit = 256 // just an arbitrary number, could be changed without breaking the protocol (must not exceed 2^24) padSizeLimit = 256 // just an arbitrary number, could be changed without breaking the protocol (must not exceed 2^24)
messageQueueLimit = 1024 messageQueueLimit = 1024

24
whisper/whisperv5/message_test.go
View file

@ -367,16 +367,17 @@ func singlePaddingTest(t *testing.T, padSize int) {
if err != nil { if err != nil {
t.Fatalf("failed generateMessageParams with seed %d and sz=%d: %s.", seed, padSize, err) t.Fatalf("failed generateMessageParams with seed %d and sz=%d: %s.", seed, padSize, err)
} }
params.Padding = make([]byte, padSize) params.Padding = make([]byte, padSize)
params.PoW = 0.0000000001 params.PoW = 0.0000000001
pad := make([]byte, padSize) pad := make([]byte, padSize)
mrand.Read(pad) _, err = mrand.Read(pad)
copy(params.Padding, pad) if err != nil {
if !bytes.Equal(pad, params.Padding) { t.Fatalf("padding is not generated (seed %d): %s", seed, err)
t.Fatalf("padding is not copied as expected with seed %d and sz=%d:\n[%x]\n[%x].", seed, padSize, pad, params.Padding) }
n := copy(params.Padding, pad)
if n != padSize {
t.Fatalf("padding is not copied (seed %d): %s", seed, err)
} }
msg, err := NewSentMessage(params) msg, err := NewSentMessage(params)
if err != nil { if err != nil {
t.Fatalf("failed to create new message with seed %d: %s.", seed, err) t.Fatalf("failed to create new message with seed %d: %s.", seed, err)
@ -385,7 +386,6 @@ func singlePaddingTest(t *testing.T, padSize int) {
if err != nil { if err != nil {
t.Fatalf("failed to wrap, seed: %d and sz=%d.", seed, padSize) t.Fatalf("failed to wrap, seed: %d and sz=%d.", seed, padSize)
} }
f := Filter{KeySym: params.KeySym} f := Filter{KeySym: params.KeySym}
decrypted := env.Open(&f) decrypted := env.Open(&f)
if decrypted == nil { if decrypted == nil {
@ -408,5 +408,13 @@ func TestPadding(t *testing.T) {
singlePaddingTest(t, i) singlePaddingTest(t, i)
} }
// todo: add several in interval 256 < i < 256*256, and another several with i > 256*256 for i := 0; i < 256; i++ {
n := mrand.Intn(256*254) + 256
singlePaddingTest(t, n)
}
for i := 0; i < 256; i++ {
n := mrand.Intn(256*1024) + 256*256
singlePaddingTest(t, n)
}
} }