Disable forced encryption with it?

How noticeable is the performance boost from disabling forced encryption?

Sent from my Nexus 6 using Tapatalk

N9005 Encryption Failed

Hi Guys

I'm selling this note 3 so followed advice to encrypt the phone to protect any data on it from recovery.

The processes staled after multiple hours so I restarted the phone and its not stuck on the Encryption failed screen and the reset device option doesn't work.

I tried using TWRP to erase all the data on the phone and tried flashing a new rom but the message remains.

The phone was on a custom lollipop rom and has now been flashed to the latest omega rom.

Any one managed to resolve this on a note 3 ?

Thanks

Richie

Device Encryption

So, of course last year the Nexus 6 had encryption turned on by default and developers argued that they software based encryption slowed the phone down considerably. I know that some people ended up turning off encryption and saw significant improvements in the speed of the device as a result.

The question is then, and I have not been able to find any definitive answers on this.

1. Will the Nexus 6P come with encryption on by default?
2. Is encryption software based or hardware based now?
3. Will the 64 Bit processor alleviate performance issues caused by software based encryption?

Forced encryption in Android 6.0

Hello, I looked online to see if I could find an answer to this question but found nothing. Maybe you guys may know. Will the Nexus 6 continue to have it's forced encryption when updated to Android 6.0? Or was it removed in the new Android version? Also, for that matter does the Nexus 6P and Nexus 5X have this forced encryption feature as well or was this removed? Thanks guys!

Encryption on Android 5-based ROMs

(This should be a reply to @sddfdds and @ivzn on http://forum.xda-developers.com/show...postcount=3274, but this forum doesn't allow new members to post to "developer" subforums. If a moderator wants to merge the threads, please do!)

I've been trying to upgrade a Galaxy Nexus GSM (maguro) from CyanogenMod 11 to @Ziyan's CyanogenMod 12.1 builds, but before I can use CM12.1 as my daily-use ROM, I need to get device encryption to work. The symptom is that if I encrypt /data on CM11, then flash CM12.1 without wiping /data, the system fails to decrypt it during boot; or if I wipe /data, install CM12.1 (as a new installation or an upgrade), and then enable encryption, the system reports that encryption failed and recommends a factory reset.

Looking into this based on the hint from @ivzn's bisection, it seems that system/vold in Android ≥ 5.1 assumes features of the dm-crypt module that aren't supported by the 3.0-based kernel used on Galaxy Nexus. I suspect any 5.1-based ROM is going to have a similar issue: I've noticed that TWRP 2.8.7.0 also can't decrypt an encrypted /data, and I suspect this might be because it's also using a newer vold.

One way to resolve that would be to patch vold, as @ivzn suggested. The linked commit on Gerrit doesn't seem to be available any more, but the general idea seems to be something like this:

Code:

---

diff --git a/cryptfs.c b/cryptfs.c
index 880ac53..e1cdab7 100755
--- a/cryptfs.c
+++ b/cryptfs.c
@@ -1035,7 +1035,7 @@ static int load_crypto_mapping_table(struct crypt_mnt_ftr *crypt_ftr, unsigned c
 #else
  convert_key_to_hex_ascii(master_key, crypt_ftr->keysize, master_key_ascii);
 #endif
-  sprintf(crypt_params, "%s %s 0 %s 0 %s 0", crypt_ftr->crypto_type_name,
+  sprintf(crypt_params, "%s %s 0 %s 0 %s", crypt_ftr->crypto_type_name,
          master_key_ascii, real_blk_name, extra_params);
 
  SLOGI("%s: target_type = %s\n", __func__, tgt->target_type);

---

However, since vold is common to all devices, that comes with some risk of breaking unrelated devices; I can't be sure that there isn't some random device (perhaps with a modified dm-crypt for hardware-assisted crypto) where that trailing 0 is somehow important.

Another way to avoid that would be to patch the kernel to tolerate this extra "column", like it does in 3.4-based kernels. That's what I've suggested here:

http://review.cyanogenmod.org/#/c/110508/
https://github.com/smcv/android_kern...ommit/6407247d

and that does seem to work fine on my maguro. This has the advantage that it only affects the Galaxy Nexus (tuna) family of devices, so it's less likely to cause a regression.

I suspect that this is applicable to all 5.1-based ROMs for Galaxy Nexus. Similarly, if there are other devices that have a working Android-5.1-based ROM but are still stuck on a 3.0 kernel, they'd probably benefit from the same patch.

I hope this is useful to someone.

Changing lock screen shortcuts when full-device encryption and smartlock are enabled

Hi,

I have enabled FDE on my G4. This makes it impossible to switch back to swipe or any other lock screen type that would allow me to change apps shortcuts on said lock screen. That's ok if you always have the PIN code keypad displayed on the lock screen but if Smart Lock is enabled and there is no need to enter a PIN, the default lock screen and apps shortcuts are shown. I can't modify these since the settings app considers that it is not relevant to my screen lock type and doesn't show the Shortcuts option.

Is there any way to launch the lock screen apps shortcut activity manually?

Thanks,

TWRP 2.8.7.0 for i777/S959G [MTP] [ENCRYPTION]

Holy crap!

Updated TWRP recovery at the latest version (2.8.7.0).

Features

• MTP Support (!)


• Can open AOSP-encrypted /data partitions (!!)


• No embedded kernel (stored on a separate partition from recovery).


• Tasty.

Supported Devices

• SGH-S959G


• i777 (probably, need someone with experience to test this out - see below*)

Cheers!


*i777 tester needed: This zip will flash to /dev/block/mmcblk0p6. On the the S959G the partition table looks like this:
/dev/block/mmcblk0p5 KERNEL
/dev/block/mmcblk0p6 RECOVERY
I believe the i777 is identical. Please confirm before flashing and reply to me with your results.

XDA:DevDB Information
TWRP 2.8.7.0 for i777/S959G [MTP] [ENCRYPTION], Tool/Utility for the AT&T Samsung Galaxy S II SGH-I777

Contributors
dimoochka, mr-cook

Version Information
Status: Testing

Created 2015-09-27
Last Updated 2015-09-27

Attached Files

SGH-S959G_TWRP_v2.8.7.0.zip - [Click for QR Code] (6.37 MB)

Note 3 Encryption Blinking Notification Light

Hello all,
I have a Tmobile Note 3 on Lollipop. It is rooted and running Twrp. I started encryption an hour ago, and it still has a blank screen with the notification Led softly changing between light blue (possibly white) and purple. Is it stuck? If so, is it safe to hard reset? I really don't want to lose all my data at this point.
Thanks in advance,
Forerunner23

TWRP v2.7.1.1 won't accept encryption password but, the ROM Screw'd will. LG Nexus 5

I know its the right password because my ROM accepts it. I'm in a bit of pickle this time because I failed to flash Gapps before flashing this new ROM I was going to test; Screw'd (flashed the latest nightly). TWRP works in every other way (or so it would appear). With my access to TWRP but, not access to my SD card what are my options to get Gapps installed? if Gapps isn't possible, I guess I'll have to take this as serendipitous and the final push I needed to get off google's tit; what are my options for Gapps alternatives?

Encryption big problem, help me please!!!

Hi.I have a samsung galaxi tab3(rooted) tablet with kitkat.I tried to encrypt my tablet,but after ,i set password and push encrypt button ,don't happen enything(appear the android man,and after stay in black window approx. 4-5min and auto reboot).So ,tablet is not encrypted becouse in my menu i dont see decryption option.After this, i stopp wireless and i rai for last one time (put password ,push encrypt buton ) and the same, as first time (green android mascot,black screen) but now, I have not had the patience to wait system restart automatically,and after 1 minut, i make this mannualy:(.Now disaster,becouse now appear an white interface ,who say "format data and cache ,restart, and after try to encrypt again".I make this(format) ,from my custom twrp recovery(i wipe data ,cahe,dalvick cache but not system[this is intact]) after i restart and.......... again samsung interface who say format try again bla bla bla..now what i want;
1.what is the problem?:confused:--(i think my tablet is not encrypted{ i can see system folder from twrp}
2.There is a solution that was not intoduce ,install a new rom?
3.if not,who is the best custom rom for my tablet, and what tool i need(this is for first time when make this operation).:p
I prefer a more elegant solution; but if not possible is good point 3.:good:
help meeeeee pls and thanx.

Encryption Thoughts?

Well I guess this is more of a general android/lollipop question, but what are people's thoughts on full-phone encryption? Has anyone encrypted their idol3? Have you found it to impact performance? Is there any conflict with root + encryption?

Also, if I have a PIN, but leave USB debugging enabled does that nullify any security I would get from encrypting my phone?

SM-T700- Encryption Persists after flash. Can't get to ROM.

Here we go. I had CM12 installed on my SM-T700 with encryption enabled. I wanted to revert back to the stock ROM, so I flashed via Odin. When it booted up it prompted me for my encryption password, but it is not working.

It seems that the encrypted disk persisted re-flash and it's not letting me boot into my os. Any help?

Unlocked and rooted with encryption issue

hey all. I unlocked my boot loader and rooted my pure tonight and when I goto encrypt the device it fails to encrypt. I enter my password in the encryption settings menu and hit the Encrypt button and it shows the black screen with the android like normal for about 1-2 seconds then goes to the white screen that has the big blue mono M and says "powered by android". It then just sits on this screen and nothing happens.

I had the phone encrypted before unlocking and rooting and when I previously encrypted the phone it would have a black screen and say something about encrypting the phone. If I hold down the power button and reboot the phone it reboots fine so I don't think it even starts the encryption process.

Has anyone had luck encrypting with a unlocked/rooted pure?

I just did a factory reset via twrp and it still is not working.

[App][4.0+][SMS App] SMS Encryption 4.0: this messenger allows to send secure SMS

The app "SMS Encryption" may be used for sending/receiving encrypted messages. This app uses the algorithm AES for encryption, AES is strong and secure algorithm. Private SMS will be encrypted on the sender side and it may be read by the receiver only if key is known.

Advantages of this app:
- this application uses algorithm of encryption which is federal government standard. AES is included in the ISO/IEC 18033-3 standard.
- private messages will be protected by a secret key
- you can use different keys for the different secret messages
- this SMS messenger allows to create private chat in real time with another person
- text of secure SMS is always encrypted even during sending
- encrypted SMS protect your private life

Known limitations:
- Encrypted text may be bigger than the original one. A number of messages must be displayed in the right bottom corner of a screen.
- This application does not support MMS.






Get it on Google play: https://play.google.com/store/apps/d...ectedsms&hl=en

Attached Files

ProtectedSMS.apk - [Click for QR Code] (2.51 MB)