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Oversec APK

55 votes, 4.4/5
  • Author:

    oversec

  • Latest Version:

    1.3.9

  • Publish Date:

    2016-11-01

The description of Oversec

Oversec transparently encrypts and decrypts any text in any app

You can use it to exchange private encrypted and covert chat- or email messages or store your own encrypted notes on your phone.

See our demo videos:
Introduction: [https://www.google.com/url?q=https://www.youtube.com/watch?v=VHZ9dA5ELXE]
Encrypting Emails: [https://www.google.com/url?q=https://www.youtube.com/watch?v=jZ_-5X2tiAo]
Encrypting Images: [https://www.google.com/url?q=https://www.youtube.com/watch?v=laq7SGwiuAw]

Oversec is completely agnostic of the subjacent app, it works with Whatsapp™, Line™, Snapchat™, Instagram™ or any other chat app. It also supports sending and receiving PGP encrypted messages with the Gmail™ or any other Email app.

End-to-End Encryption was yesterday. Oversec introduces "Eye-to-Eye" encryption. Encrypted data is only decrypted while it is shown on the screen! No clear text is ever persisted and thus cannot be extracted from the file system or accidentally be backed up into the cloud.

We also carefully designed Oversec so that it doesn't require internet access. Because of that, you can rest assured that no decrypted information can ever leave your device.

How it works:

Oversec constantly monitors the text on your screen. When it finds an encrypted text, it tries to decrypt it and then shows the decrypted text as an overlay in place of the encrypted text. Conversely, it can read text out of an input field, encrypt it, and then put the encrypted text back into the input field.

In order to encrypt a text, Oversec shows a button next to an active input field. After having entered the secret text, tapping that button makes Oversec read the text, encrypt it and put back the encrypted text into the field. It is now ready to be sent in the subjacent app as usual - the app doesn't even know that it is sending encrypted data!

Oversec also features a unique way of encoding the encrypted messages. It stores the encrypted text in invisible (zero-width) characters and let's you add decoy text at the end. That way, a message will just show e.g. "The sun is shining!" with no visible sign of any encryption, whereas in reality it contains a hidden encrypted message.

You may also encrypt and send photos through Oversec - its unique camera mode even allows you to take and send an encrypted photo without ever storing the original photo on the device.

Oversec encrypts your data either using symmetric keys (using ChaCha20 cipher + Poly1305 MAC ) or using asymmetric PGP encryption (making use of the OpenKeychain app [https://www.google.com/url?q=https://play.google.com/store/apps/details?id=org.sufficientlysecure.keychain]).

The encryption related code is open source and can be found here: https://github.com/oversecio/oversec_crypto

Oversec for Android official Trailer

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Oversec APK Version History
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Oversec 1.3.9 for Android 4.3+ APK Download

Version: 1.3.9 (1003009) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-11-01

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.3.9(1003009) apk safe verified

APK File SHA1: 034c95f86fd9f26c1dd833ea62173880eb96cdb0

What's new: #1.3.9 - now works with YubiKey via Openkechain - various small impro More...

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Oversec 1.3.6 for Android 4.3+ APK Download

Version: 1.3.6 (1003006) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-10-03

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.3.6(1003006) apk safe verified

APK File SHA1: 7ed066b088bda81a39652c9ef8de2d6f5cd25045

What's new: #1.3.6 - better defaults for "Google Docs" and other " More...

Download APK(4.6 MB)

Oversec 1.3.4 for Android 4.3+ APK Download

Version: 1.3.4 (1003004) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-09-26

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.3.4(1003004) apk safe verified

APK File SHA1: 72105feca51ba198e937e764878643d9d1818660

What's new: #1.3.4 - French translation- fixed a few small bugs

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Oversec 1.3.3 for Android 4.3+ APK Download

Version: 1.3.3 (1003003) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-09-23

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.3.3(1003003) apk safe verified

APK File SHA1: 6f5ff5a1d0098635c08d1d2e2001067f51380be0

What's new: #1.3.3 - now detects Base64 in WebViews (GMail, Inbox, ...)- fixed a f More...

Download APK(4.5 MB)

Oversec 1.3.2 for Android 4.3+ APK Download

Version: 1.3.2 (1003002) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-09-18

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.3.2(1003002) apk safe verified

APK File SHA1: 9ace2bbb36ec066c5b74212cac2b187ae98d961a

What's new: #1.3.2 - new "spread" invisible encoding for Instagram and F More...

Download APK(4.5 MB)

Oversec 1.2.1 for Android 4.3+ APK Download

Version: 1.2.1 (1002001) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-09-11

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.2.1(1002001) apk safe verified

APK File SHA1: 1047e6678a2c5bb0a8c523305761e14bf722331f

What's new: # 1.2.0 - Support for "Inbox By Gmail" via clipboard- gracef More...

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Oversec 1.1.1 for Android 4.3+ APK Download

Version: 1.1.1 (1001001) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-08-26

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.1.1(1001001) apk safe verified

APK File SHA1: da9d2512f11d9af240e0a390cd89923280de27cd

What's new: ### 1.1.1 - gracefully handle permission revokal- fixed some crashes# More...

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Oversec 1.1.0 for Android 4.3+ APK Download

Version: 1.1.0 (1001000) for Android 4.3+ (Jelly Bean MR2, API 18)

Update on: 2016-08-20

Signature: 72e18b9975a5dcb436ff717fea26f690892c6054 Oversec 1.1.0(1001000) apk safe verified

APK File SHA1: e7a5c3e30b113026dc226f3088131ef9b3253761

What's new: # 1.1.0 - new feature: Panic on Screen Off# 1.0.1- hotfix release, fix More...

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