Download QCRYPTO©  Win     Download QCRYPTO©  Mac    

QCRYPTO© is a  symmetric key cryptography system.
The keys are 512 bits.
The encryption algorithm is not mathematical, there are no unsolvable equations or noisy linear equations, but it is absolutely unbreakable.
The contents of your documents end up in a black hole.
Only you and whoever communicates with you can recover them with the private key.
(NO Backdors here !!)

Info about algorithm can be found HERE

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ENCRYPT  ANY DOCUMENT
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You can encrypt text documents, photos, movies, ZIPs, encrypt PDF documents, Word documents and any other documents regardless of the language it is written in.
You can also record voice messages (.m4a), encrypt them and send them as email attachments.
You can give the encrypted documents whatever name you want because the name of the source file is stored in the encrypted file and when the document is decrypted it is automatically assigned its original name.
You can write a text that is directly encrypted, i.e. there is no clear version. 

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AUTHENTICATION
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Each encrypted document contains a NIDE code.
The encryption algorithm is such that the same document, encrypted n times with the same key, generates n different encrypted files and therefore n different NIDE codes. This makes a digital signature unnecessary, since the recipient of the encrypted document, once they have checked the NIDE, has absolute certainty of its origin and authenticity. In fact, it is not possible to create an encrypted file with a desired NIDE.
 Out of an abundance of safety and even a pinch of skepticism, the recipient might respond by sending the encrypted NIDE code.  

As an experiment, over the course of 2 hours, a PDF document was encrypted 400 times with the same key, resulting in 400 files, all encrypted with different NIDEs.
This property is easily verifiable after installing the system.
 
The NIDE code is displayed at the end of the encryption process, verified by the system before decrypting the documents, and can be checked at any time using a dedicated function that also shows:
- the name of the key used
- who encrypted the document and when
- the name of the original document 

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THE KEY FILE
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Upon first use you will be asked to set a
key phrase (FK) of 64 characters.
All your keys are kept in an archive and are encrypted with this FK.
So you have 2 advantages:
- you are not forced to remember all the keys you use, which would be very difficult as they are all made up almost exclusively of special characters
- you don't have to find a safe place to hide them
It's like having many safes, you can't go around with all those keys, so you put them all in a drawer and you'll only have to carry around the key to that drawer.
FK is the only key you need to remember because you need it to enter the system and without FK you would no longer be able to recover your encrypted files.
The keystore contains all keys of the form:
NAME OF THE KEY (in clear text, anyone can see it) + KEY (which only you can see, because it is encrypted with FK).
To encrypt you indicate the name of the key to use and this is taken from the archive, decrypted with FK and used for encryption.
To decrypt, simply indicate the name of the encrypted document.
The key name is stored in the document and the key is taken from the archive.
The keys can be generated using the appropriate function of the program and assigning them the desired name.
You can create a shared key with your correspondent with the key exchange process.
A key can also be imported into the system or exported from.
In the KEY FILE you can also store everything you want to keep safe or you want 
avoid to be forgotten. like passwords, credit card info, etc. 
 

 Contacts     [email protected]