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#ChatLiner: Building A Trusted System
#What is Digital Chip Card Locker (DCCL)?
To ensure trusted encryption of transferred files and messages, ChatLiner relies on Digital Chip Card Locker technology, another product developed by VIDYPS 79.
Digital Chip Card Locker, or DCCL for short, is a tool based on end-to-end encryption and decryption of images, audio and video recordings, PDF documents, animated GIFs and other files.
#What is a DCCL crypto key pair?
Digital Chip Card Locker utilizes algorithms to generate a cryptographic key pair consisting of two different but mathematically linked keys - one public and one private.
The public DCCL key is publicly available, whereas the private DCCL key must be kept confidential and should never be shared with other people or exposed online.
DCCL keys are responsible for encrypting and decrypting files and messages exchanged within the ChatLiner application.
#DCCL + RSA
Digital Chip Card Locker is closely intertwined with the RSA asymmetric encryption algorithm and is particularly convenient and time-efficient when it comes to encrypting files and large amounts of data.
In addition to the DCCL key pair, there is also an RSA key pair that is generated along with the DCCL key pair.
RSA keys used with DCCL are 2048 bits long and are still considered secure against cyber attacks.
DCCL enables encrypted data to be translated into a mathematically suitable format for transmission over the Internet and reliable decryption by the recipient.
RSA, on the other hand, ensures the confidentiality of the variables that make up the DCCL's encryption and decryption algorithms.
It is DCCL that encrypts the data, not RSA, to be precise, but RSA provides additional security to the DCCL ecosystem.
The rule that ChatLiner adheres to is that the private DCCL/RSA key may or may not be stored locally on your computer, but is never shared with anyone, uploaded anywhere, or stored in any remote location.
#How does ChatLiner prevent data breach?
To decrypt files and messages encrypted by ChatLiner, you must be able to reproduce the DCCL algorithms and obtain the corresponding private keys.
Let's take a closer look at some examples and get an insight into how it actually works in practice.
#What if someone comes into possession of the private DCCL key?
#What if someone has insight into the DCCL algorithms?
Now suppose that someone familiar with the DCCL decryption algorithms has legitimate access to the server that communicates with ChatLiner.
Could they decipher the files and messages stored over there?
The answer is simple: no, they couldn't, provided they didn't get their hands on the private DCCL or RSA key. It's like standing in front of a door you can't break down and you don't have the key to unlock it, so you can't get in. And therefore you cannot decipher the messages behind that door.
It is crucial that the private key is not disclosed publicly and is never left or stored in any remote location.
#What if the message is intercepted?
It may happen that the secure connection between two users is broken and the sent message is intercepted.
This, however, makes no difference compared to the other two examples.
It's the same rule that still applies: to decrypt files and messages encrypted by ChatLiner, you must be able to reproduce the DCCL algorithms and obtain the corresponding private keys.
Because of this, it is said to be unlikely that anyone could ever come up with a solution to spoof a ChatLiner-based system or make it vulnerable to cyber-attacks.
Simply put, this system is not vulnerable and has no weak points.
#End-to-end encryption in the truest sense of the word: ChatLiner, at your service
 #ChatLiner is a messaging platform that provides authentic end-to-end encryption of transferred files and messages and prevents their modification, loss, damage or misuse.
There is no compromise, interception or collection of users' personal data or sensitive data from users' devices.
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