OLMKit: Reset intermediate buffers to zeroes
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aa12cbcac2
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3540926b98
3 changed files with 6 additions and 0 deletions
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@ -66,6 +66,7 @@
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size_t randomLength = olm_create_account_random_length(_account);
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NSMutableData *random = [OLMUtility randomBytesOfLength:randomLength];
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size_t accountResult = olm_create_account(_account, random.mutableBytes, random.length);
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[random resetBytesInRange:NSMakeRange(0, random.length)];
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if (accountResult == olm_error()) {
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const char *error = olm_account_last_error(_account);
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NSLog(@"error creating account: %s", error);
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@ -147,6 +148,7 @@
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size_t randomLength = olm_account_generate_one_time_keys_random_length(_account, numberOfKeys);
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NSMutableData *random = [OLMUtility randomBytesOfLength:randomLength];
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size_t result = olm_account_generate_one_time_keys(_account, numberOfKeys, random.mutableBytes, random.length);
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[random resetBytesInRange:NSMakeRange(0, random.length)];
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if (result == olm_error()) {
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const char *error = olm_account_last_error(_account);
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NSLog(@"error generating keys: %s", error);
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@ -55,6 +55,7 @@
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NSMutableData *random = [OLMUtility randomBytesOfLength:olm_init_outbound_group_session_random_length(session)];
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size_t result = olm_init_outbound_group_session(session, random.mutableBytes, random.length);
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[random resetBytesInRange:NSMakeRange(0, random.length)];
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if (result == olm_error()) {
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const char *error = olm_outbound_group_session_last_error(session);
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NSLog(@"olm_init_outbound_group_session error: %s", error);
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@ -97,6 +98,7 @@
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return nil;
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}
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NSString *sessionKey = [[NSString alloc] initWithData:sessionKeyData encoding:NSUTF8StringEncoding];
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[sessionKeyData resetBytesInRange:NSMakeRange(0, sessionKeyData.length)];
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return sessionKey;
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}
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@ -78,6 +78,7 @@
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NSData *idKey = [theirIdentityKey dataUsingEncoding:NSUTF8StringEncoding];
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NSData *otKey = [theirOneTimeKey dataUsingEncoding:NSUTF8StringEncoding];
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size_t result = olm_create_outbound_session(_session, account.account, idKey.bytes, idKey.length, otKey.bytes, otKey.length, random.mutableBytes, random.length);
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[random resetBytesInRange:NSMakeRange(0, random.length)];
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if (result == olm_error()) {
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const char *olm_error = olm_session_last_error(_session);
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@ -215,6 +216,7 @@
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return nil;
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}
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size_t result = olm_encrypt(_session, plaintextData.bytes, plaintextData.length, random.mutableBytes, random.length, ciphertext.mutableBytes, ciphertext.length);
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[random resetBytesInRange:NSMakeRange(0, random.length)];
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if (result == olm_error()) {
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const char *olm_error = olm_session_last_error(_session);
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