OpenKeychain

OpenKeychain 5.7.5 for Android

A Free Communication App

Published By COTECH

OpenKeychain (org.sufficientlysecure.keychain): Encrypt your Files and Communications. Compatible with the OpenPGP Standard. ... Read More > or Download Now >

OpenKeychain for Android

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9.62 MB

Google Play

Tech Specs

  • • Latest Version: 5.7.5
  • • Updated: April 30, 2021
  • • Requires: Android 4.0.3 and up
  • • Developer: COTECH
  • • Content Rating: Everyone

User Reviews

  • 4105 Votes, Average: 4.7 out of 5
  • • Rating Average
  • 4.7 out of 5
  • • Rating Users
  • 4105

Download Count

  • • Total Downloads
  • 314
  • • Current Version Downloads
  • 5
  • • File Name: org.sufficientlysecure.keychain.apk

You can now download the latest version apk file or old version apk file and install it.

More About OpenKeychain App

OpenKeychain Screenshot Image

OpenKeychain Description: OpenKeychain helps you communicate more privately and securely. It uses encryption to ensure that your messages can be read only by the people you send them to, others can send you messages that only you can read, and these messages can be digitally signed so the people getting them are sure who sent them. OpenKeychain is based on the well established OpenPGP standard making encryption compatible across your devices and systems. For a list of compatible software for Windows, Mac OS, and other operating systems consult http://openpgp.org/software/.

Modern encryption is based on digital “keys”. OpenKeychain stores and manages your keys, and those of the people you communicate with, on your Android smartphone. It also helps you find others’ keys online, and exchange keys. But its most frequent use is in using those keys to encrypt and decrypt messages.

★ Integration with other Apps:
• K-9 Mail
• Conversations
• and many more…

★ Open Source: OpenKeychain is designed to be trustworthy. It’s Free Software with no secrets; anyone can examine and validate every bit of it (Source code available at https://github.com/open-keychain/open-keychain)

★ Independent Security Audit: The auditing company Cure53 performed an intensive security audit of OpenKeychain. The security experts summarize their final result with "[...] none of the spotted issues were considered to be of a critical severity in terms of security implications. The latter is a significant and impressive result for an app of this complexity and relevance."

★ Permissions: Because OpenKeychain is Free Software, anyone can validate that the permissions are indeed only required for the listed features.
• In-app purchases: Donate to the developers
• Identity: Pre-fill name and email addresses
• Contacts: Connect keys to your contacts (only offline)
• Photos/Media/Files: Import/export keys from SD card
• Camera: Scan QR Codes to add other people's keys
• Others: Internet permission to retrieve keys, NFC permission to use YubiKeys

Starting with Android 6, permissions are requested when required in-app!

What's New in OpenKeychain 5.7.5 >

5.7
* Fixes for Curve25519
* IDEA cipher is now considered insecure
5.6
* Compatibility with Android 10 and higher
* Several bug fixes
5.5
* Fix decryption from clipboard on Android 10
5.4
* Add WKD Advanced method
* Add COTECH Security Key Shop
5.3
* Use keys.openpgp.org as default keyserver
5.2
* Improved key import from clipboard
5.1
* Support for Ledger Nano S
* Support Web Key Directory (WKD) search
* Fixed potential API security issue

Download OpenKeychain 5.7.5 APK File

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