Study on how to perform End-to-End File Encryption (large file) for a website

Hi All,

I need someone who are very familiar in file encryption to help me study on how people can perform End-to-End file encryption for a website (including large file of some Gigabytes). It's called "zero knowledge" end to end encryption. It's means that the files much be encrypted on client side using their user device or web browsers before uploaded to the website.

The encryption must be perform for each file with a separate symetric key (randomly generated) on user device or web browser before upload it to the website (the encryption scheme we will apply to our website will look like the images on this link: [login to view URL])

The End-to-End encryption for large file has been performed by numerous websites but we don't know exactly how can they do that?

[login to view URL]

[login to view URL]

(using which software? or which language? because file encryption using Javascript on browser usually causing the browser crash during encrypting of large files)

This study must include:

- Which language or code we can use to encrypt/decrypt files on user device (Javascript?, JAVA?, PHP?)

- The source code to perform that task: need to write a demo code to upload/encrypt and download/decrypt large file to a sample website (localhost ok)

thank you very much for your reading and welcome to bid :)

Please outline a little bit on this technology to prove yourself if you have knowledge about End-to-End File Encryption

Evner: Kryptografi, Java, JavaScript, Software Arkitektur, Web Sikkerhed

Se mere: website how to make, software to make websites, security for php website, php language study, i need someone to write a javascript for me, how we make a website, how to your website, how to write for a website, how to write code, how to write blog, how to write bid, how to write a code in php, how to write a bid, how to make web, how to make blog, how to make a websites, how to make a web, how to make a blog website, how to do blog, how to code php

Om arbejdsgiveren:
( 12 bedømmelser ) HCM, Vietnam

Projekt ID: #11100274

Tildelt til:


Hey there, I can tell you right away that it could be achieved with javascript and the html5 file api. What do you count as a "big" file? You can crash the browser with 10mb file sometimes. But i assume that you Flere

$50 USD på 1 dag
(1 bedømmelse)

12 freelancere byder i gennemsnit $194 timen for dette job


Hello I'm interesting your project very well I'm a Good C++/C#, Java, Encryption , Math, Algorithm expert. I m quite well experienced in these jobs. Let's go ahead with me I want to service for you continously Flere

$250 USD in 5 dage
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$155 USD in 3 dage
(31 bedømmelser)

Hello. As far as I know, in order to transfer big encrypted files you need: 1) direct access to local file system on client side (Java application or Javascript as browser add-on) 2) use data transfer via smalle Flere

$100 USD in 10 dage
(37 bedømmelser)

Hi i just went through your project description that you need help on end to end encryption. Linkedin professional profile: [login to view URL]

$166 USD in 4 dage
(35 bedømmelser)

Dear Sir, I am happy to be here to contact you. Sometimes a chance may change the whole life, and it will be that great chance of success of your business and life. "No pains, no gains", but you get me here, yo Flere

$155 USD in 3 dage
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I have MS in Information Security with research interest of Cryptography. I have implemented Cryptography algorithms in Java and C, written security solutions in J2EE and Java, have implemented datastructures in Jav Flere

$555 USD in 10 dage
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Hello! My name is John A. Gonzalez and I have been developing software for 23 years, with 18 years experience in C++ as a primary language. I have worked on a wide variety of projects and am known as the go-to person Flere

$250 USD in 3 dage
(2 bedømmelser)

Greats.... #Quality work and Exact time and 5+Experience in php# Hi, #Can We discuss about your project requirement.# We are ready to start the project now. We have gone through with your requirements Flere

$133 USD in 10 dage
(4 bedømmelser)

Hi, We have experience in developing both the front-end and the back of web applications. If you want to achieve "zero knowledge" you could use an asymmetric key algorithm like RSA. However this is inefficient per Flere

$170 USD in 7 dage
(2 bedømmelser)

Hi you will find my services highly reliable and professional. My Vision : High Quality, High Speed, High Satisfaction! i have 7 years business experience with certified and skilled . We are always looking to push forw Flere

$233 USD in 3 dage
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hi, I heard about the zero visibility in end to end communication which seems to be the same what u r saying .lets discuss Abour the work. regards xuvtechnologies

$111 USD in 10 dage
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