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Be robust if other client sends padded base64 in the reciprocate

This commit is contained in:
Benoit Marty 2020-02-27 18:35:05 +01:00
parent 1ead2778c2
commit 0a9008a73d
2 changed files with 34 additions and 1 deletions
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32
matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/internal/crypto/crosssigning/ExtensionsKtTest.kt Normal file
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@ -0,0 +1,32 @@
/*
* Copyright (c) 2020 New Vector Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package im.vector.matrix.android.internal.crypto.crosssigning
import org.amshove.kluent.shouldBeTrue
import org.junit.Test
@Suppress("SpellCheckingInspection")
class ExtensionsKtTest {
@Test
fun testComparingBase64StringWithOrWithoutPadding() {
// Without padding
"NMJyumnhMic".fromBase64().contentEquals("NMJyumnhMic".fromBase64()).shouldBeTrue()
// With padding
"NMJyumnhMic".fromBase64().contentEquals("NMJyumnhMic=".fromBase64()).shouldBeTrue()
}
}

3
matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/verification/qrcode/DefaultQrCodeVerificationTransaction.kt
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@ -24,6 +24,7 @@ import im.vector.matrix.android.api.session.crypto.verification.VerificationTxSt
import im.vector.matrix.android.api.session.events.model.EventType
import im.vector.matrix.android.internal.crypto.actions.SetDeviceVerificationAction
import im.vector.matrix.android.internal.crypto.crosssigning.DeviceTrustLevel
import im.vector.matrix.android.internal.crypto.crosssigning.fromBase64
import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
import im.vector.matrix.android.internal.crypto.verification.DefaultVerificationTransaction
import im.vector.matrix.android.internal.crypto.verification.VerificationInfo
@ -199,7 +200,7 @@ internal class DefaultQrCodeVerificationTransaction(
return
}
if (startReq.sharedSecret == qrCodeData.sharedSecret) {
if ((startReq.sharedSecret?.fromBase64()?.contentEquals(qrCodeData.sharedSecret.fromBase64()) == true)) {
// Ok, we can trust the other user
// We can only trust the master key in this case
// But first, ask the user for a confirmation