Chiffry Premium

€0,99 EUR

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Länge 1 Monat 1 Jahr 3 Jahre

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

AVAILABLE FOR:
- ANDROID
- iOS

STATE-OF-THE-ART SECURITY FUNCTIONS

Chiffry's encryption is based on the BSI guidelines and uses state-of-the-art 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 phone call and transmitted to the recipient according to the letterbox principle using modern elliptic curve cryptography (512-bit ECDH). In addition, all messages are forgery-proof with 512-bit ECDSA signatures and each user is identified thanks to cipher certificates. For comparison: online banks generally 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 required to guess this key is at least 3.4*1038 times higher. (Sources: BSI TR-02102-1, TR-03111)

SECURE DATA TRANSMISSION

Data protection is the focus of Chiffry. Data is transmitted via the Chiffry communication server. This is located in envia TEL's high-performance data centre, which is one of the most secure in Germany, meets the highest requirements for security, connectivity and availability and is certified in accordance with IT security standard ISO 27001 and management standard ISO 9001. Only the telephone number and public key for communication are recorded on the encryption 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, as the encryption key is only held by the sender and recipient in order to encrypt and decrypt information.

FEATURES OF THE BASIC VERSION:

Secure encrypted calls
Send voice and text messages confidentially
Share images, videos, contacts and locations confidentially
Send encrypted messages and notes
Encrypted chat and group chat with up to 10 members
Free calls via the internet

All smartphone users can install and use the basic version of this encryption app free of charge. Users of this security app for mobile phones can also make tap-proof encrypted calls with their smartphone and tablet free of charge.
The paid premium version includes significantly more security and convenience functions and offers enhancements to the basic functions (including larger files, more group members, etc.). This version is suitable for private and business users who attach particular importance to security or want to use the additional functions of the premium version.
The business version is designed for public authorities and companies and includes special solutions such as communication via your own encryption server as well as optional integration of your own company design, use of special smartphones with hardened operating systems and integration of other hardware components.