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ID: de.chiffry.awo

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The description of Chiffry sponsored by AWO

Chiffry sponsored by AWO is a version of the Chiffry Secure Messenger in cooperation with the AWO Sachsen Soziale Dienste Gemeinnützige GmbH. The service is offered and operated by Chiffry GmbH.

In addition to the usual AWO design, the Chiffry sponsored by AWO Basic + version also offers the user additional free functions such as:

- Group chats up to 50 users
- Broadcasts up to 50 users
- Sending of all file types up to 10 MB
- Multi-picture shipping
- Integrated QR code reader

To receive the free Basic + license, scan the QR code at your local AWO branch with Chiffry sponsored by AWO. (only available at participating AWO branches)

Chiffry is the first communication app with the quality label "IT Security made in Germany". This encrypted messenger enables you to send text and voice messages securely, to share pictures, videos, contacts and locations confidentially and to make phone calls securely.

- iOS


Chiffry uses the BSI guidelines for encryption and uses the latest end-to-end encryption with 256-bit AES in GCM mode. All messages and phone calls are encrypted on the sender's device and decrypted on the recipient's device. The encryption key is generated anew before each message or telephone call and transmitted to the recipient according to the mailbox principle using modern elliptic curve cryptography (512-bit ECDH). In addition, all messages with 512-bit ECDSA signatures are tamper-proof and every user is identified thanks to Chiffry certificates. For comparison: online banks usually use 2,048 to 4,096-bit RSA encryption. The 512-bit EC encryption used by Chiffry corresponds to 15,500-bit RSA encryption. The effort to guess this key is at least 3.4 * 1038 times higher. (Sources: BSI TR-02102-1, TR-03111)


Chiffry focuses on data protection. The data transfer takes place via the Chiffry communication server. This is located in the high-performance data center of envia TEL, which is one of the safest in Germany and meets the highest requirements for security, connection and availability and is certified according to the IT security standard ISO 27001 & management standard ISO 9001. Only the telephone number and public keys for communication are recorded on the Chiffry server during registration. All messages remain encrypted on the server until they are delivered to the recipient and are deleted after delivery or after 21 days at the latest. End-to-end encryption means that neither Chiffry employees nor third parties can access the content of these messages, since the encryption key is only at the sender and recipient in order to encrypt and decrypt information.


- Secure phone calls, encrypted
- Send voice and short messages confidentially
- Share pictures, videos, contacts and locations confidentially
- Send encrypted messages and notes
- Encrypted chat and group chat with up to 10 members
- Free calls over the Internet

All smartphone users can install and use the basic version of this encryption app free of charge. In addition, users of this security app for mobile phones can make phone calls securely and securely with their smartphone and tablet.

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Chiffry sponsored by AWO Varies with device APK for Android Varies with device+

Version Varies with device for Android Varies with device+
Update on 2023-02-02
Installs 1.000++
File size 7.965.928 bytes
Permissions view permissions
What's new Wir aktualisieren die App regelmäßig, um sie zu verbessern. Laden Sie die neueste Version herunter um die aktuellsten Funktionen und Problembehebungen zu erhalten.

Änderungen in dieser Version:

- Möglichen Fehler beim Laden von Kontaktnamen behoben