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Cryptaphone -
The Architecture

Cryptaphone has been designed from the ground up, specifically with anonymity, advanced encryption and privacy in mind.

To achieve this, we had to remove some of the existing features that you find on most encrypted phones, and added a totally different way to communicate.

Mobile Phone shown with Credit Card, User Profile and Password Graphics

Cryptaphone Security Features

  • We do not use the phones standard keyboard – we implemented our own
  • We do not allow copy and paste
  • We do not store contact info for you or your chat partners
  • We have the concept of share groups
  • We do not allow notifications as this data travels outside of our area of protection, although frustrating it means your data is secure, and there is no record of messages being available
  • We never store your private key to chat groups
  • We don’t create your private keys for you (most encrypted phones do this) why let them create your access keys!!! – You create the keys yourself
  • Connections over the internet use a different encryption created on the fly EVERY TIME! We do not store the keys on the servers. Therefore, we never use long term key pair creation
Mobile Phone shown with Credit Card Graphic

Access Defender

Access defender is designed to prevent the following password attacks though a unique patented process

  • Data loggers • Recording keyboard keys or mouse movements won’t reveal password
  • Screen capture / video capture • Does not reveal password *MPS secure against multiple data capturing.
  • Man in the middle attacks • Data changes every time you log in, so data capturing cannot be reused
  • Tempest attacks – Data captured is out of date
  • Sideway authentication attacks
  • Replay attacks- replaying the last data sent will not give authentication
  • Line of site capture / over the shoulder viewing -watching a user enter a password does not reveal the password *MPS
Cryptaphone Access Defender shown in use on an iPhone

*MPS technology prevents large data mining to discover passwords

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Cryptaphone architecture summary in 3 steps

Architecture

1. Encryption keys are never stored on device or server

Almost all authentication technology stores your private keys locally for authentication purposes, Cryptaphone does not, keys are never stored locally or on the server, which means there is no key to hack/ steal to access your data anywhere.

Additionally, you can use very sophisticated keys and multiple keys for each conversation. With high entropy key generation, the keys used are impossible to predict or guess by systems trying to crack encrypted data.

Mobile Phone with shield graphics
Mobile Phone with padlock graphics
Architecture

2. Anonymous groups

The full layout and design of the system is anonymous, no device unique identifier is every used or sent to our servers. The server data is so heavily encrypted that we don’t even need to protect it from reading. However, we do anyway. We could hand over all the data we store the server to anyone, and it would not be possible to recover any data, or identify any phone.

All phones are given a world unique code, which is changed every time you reset the data or forget your passwords. We never use any phone unique identifier in any way shape or form.

Architecture

3. Data

Data in Cryptaphone undergoes several levels of encryption, encoding and compression. Many forms of cryptography are used to achieve this level of data protection. Although the transmission and storage of the data does not need to be encrypted because of the secure architecture; we do it anyway.

Multiple levels and types of cryptography are used, throughout the technology. On failed authentication a pre-set number of times, or by the user selecting to wipe all data, the system uses an advanced process to wipe the applications data in a way that is designed to keep your information secure, however as the data is encrypted with a key that does not exist on the device, it would be impossible to recover any data.

Mobile Phone with security graphics

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