Chiffry Secure Messenger app icon

Chiffry Secure Messenger

Chiffry UG (haftungsbeschränkt) · de.chiffry

2.5 (2 ratings) 10K+ downloads vv1.2.43 21.1 MB Android 2.3.3+ PEGI 3 · Everyone

Download APK 21.1 MB All versions

At a glance

Latest version
vv1.2.43 (10243)
Updated
Jun 8, 2017 (9 years ago)
APK size
21.1 MB
Requires
Android 2.3.3+ (API 10)
CPU support
ARM (legacy)
Graphics
OpenGL ES 2.0+
Category
Communication (app)
Permissions
23 (10 sensitive)
Website
chiffry.de
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Chiffry Secure Messenger is an app by Chiffry UG (haftungsbeschränkt) in the Communication category. It includes native code only for ARM (legacy), so it won't run on 64-bit-only phones such as recent Pixels.

It asks for 23 permissions, 10 of them sensitive, including precise location, camera and record audio. The app offers in-app purchases through Google Play.

What's new in vv1.2.43

- More stable telephony - Improved delivery for large messages - Other improvements for stability reasons

Description

From the listing uploaded by “guardianphone”.

Chiffry is the first app with the quality label "IT Security made in Germany", which allows you a safe and comprehensive communication. With Chiffry you can make phone calls tap-proof and send your photos, videos, contacts, voice and text messages confidential. All data will be securely transmitted using state-of-the-art end-to-end encryption (256 bit AES - GCM 512 bit ECDH) and digital signatures (512 bit ECDSA). For information security these key lengths and encryption methods are used: Chiffry uses elliptic curve cryptography (ECC) and the industry standard AES. The key lengths used correspond respectively to 15,500 bit RSA keys (Source: BSI TR 02102-1). Other service providers offer usually security equal to a maximum of 4,096 bit RSA keys. According to the BSI (Federal Office for Information Security) directive "BSI TR-03111" the recommended ECC curve "brainpoolP512r1" for asymmetric functions is exclusively used. The referenced BSI guidelines can be found here: https://www.bsi.bund.de/DE/Publikationen/TechnischeRichtlinien/tr02102/index_htm.html https://www.bsi.bund.de/DE/Publikationen/TechnischeRichtlinien/tr03111/index_htm.html

Security & authenticity

Security rating: Trusted

Signing certificate

  • Certificate issued to “Chiffry UG (haftungsbeschr?nkt)” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

  • Developer signature verified Jun 8, 2017
  • Antivirus scan passed Nov 30, 2020
  • Signed byO=Chiffry UG (haftungsbeschr?nkt), L=Teutschenthal, ST=Sachsen-Anhalt, C=DE
  • Signing certificate (SHA-1)09:EC:DD:A5:A9:E0:D7:C3:69:35:9C:97:A1:D7:7E:1A:F3:9E:39:74
  • File MD5d4d0ab776248ef6d4bea767f549b9bae
  • Uploaded by “guardianphone” Silver tier · 3,186 followers · uploading since 2017

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (23)

Chiffry Secure Messenger requests 23 permissions, 10 of them sensitive.

Required hardware & features

Chiffry Secure Messenger APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is Chiffry Secure Messenger free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Chiffry Secure Messenger APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is d4d0ab776248ef6d4bea767f549b9bae.

Tags

chiffry communication

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