Signal/Android
1
0
Fork 0
mirror of https://github.com/signalapp/Signal-Android.git synced 2026-04-29 13:16:01 +01:00
Code Issues Packages Projects Releases Wiki Activity

Rollbacks, v2 sms-transport key exchanges, push identity conflicts.

Browse Source 
1) Stop protocol rollbacks.

2) Handle v2 version key exchange messages.

3) Handle identity key conflicts on prekeybundle messages.
This commit is contained in:
Moxie Marlinspike
2013-09-14 13:33:23 -07:00
parent 5e6d39beea
commit 073b1f69e3
16 changed files with 192 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
library/src/org/whispersystems/textsecure/crypto/SessionCipher.java
View File

@@ -89,7 +89,14 @@ public class SessionCipher {
throws InvalidMessageException
{
try {
KeyRecords records = getKeyRecords(context, masterSecret, recipient);
KeyRecords records = getKeyRecords(context, masterSecret, recipient);
if (messageVersion < records.getSessionRecord().getNegotiatedSessionVersion()) {
throw new InvalidMessageException("Message version: " + messageVersion +
" but negotiated session version: " +
records.getSessionRecord().getNegotiatedSessionVersion());
}
SessionKey sessionKey = getSessionKey(masterSecret, Cipher.DECRYPT_MODE, messageVersion, localIdentityKey, records, recipientKeyId, senderKeyId);
return new SessionCipherContext(records, sessionKey, senderKeyId,
recipientKeyId, nextKey, counter,