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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

Kĩ năng: Mật mã, Java, JavaScript, Kiến trúc phần mềm, An ninh Web

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Về Bên Thuê:
( 12 nhận xét ) HCM, Vietnam

ID dự án: #11100274

Được trao cho:


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 Thêm

$50 USD trong 1 ngày
(1 Nhận xét)

12 freelancer chào giá trung bình$194 cho công việc này


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 Thêm

$250 USD trong 5 ngày
(696 Nhận xét)
$155 USD trong 3 ngày
(31 Nhận xét)

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 Thêm

$100 USD trong 10 ngày
(37 Nhận xét)

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 trong 4 ngày
(35 Nhận xét)

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 Thêm

$155 USD trong 3 ngày
(5 Nhận xét)

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 Thêm

$555 USD trong 10 ngày
(7 Nhận xét)

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 Thêm

$250 USD trong 3 ngày
(2 Nhận xét)

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 Thêm

$133 USD trong 10 ngày
(4 Nhận xét)

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 Thêm

$170 USD trong 7 ngày
(2 Nhận xét)

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 Thêm

$233 USD trong 3 ngày
(0 Nhận xét)

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 trong 10 ngày
(0 Nhận xét)