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php curl - find out how hash value is calculated

When I log in to [url removed, login to view] (eg. card number: 81187763, card holder: Michael Jackson),

the following POST data is sent to the server:

__RequestVerificationToken=real0xsegRQAkby%2B8wcDivshhw%2Bjx112x7jGwZFoLbd%2F6bMTc1Zfw4Agbs7trr9N1vkUEp588RCbkkjAGS33OIWcZf9vOaUAYXxaevgWOesqS5tTl6b2%2BX9k5t%2B217xAKaW1BCBqMPQVJhOFagMOuDh%2B%2FCRHQgBA3Zdps7YEDXw%3D&__cardHolderNonce=w%2BXELfzHg9e09vopbInlM4ERvds8V2szb%2FgrCPjVkhZTBk2HvSee8NuXDIi481fH&cardHolderHash=2CCEB66176BFEE674C696C88C65637660DAE730C&cardHolderLen=15&cardNumber=81187763&rememberMe=false

I need to figure out how cardHolderHash is calculated, it is a SHA1 encrypted value, but I have no idea what is encrypted

Skills: PHP, Web Scraping

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About the Employer:
( 54 reviews ) MEDAN, Indonesia

Project ID: #6419911

6 freelancers are bidding on average $53 for this job

SigmaVisual

Dear Client, I can help in your project. We have already experience of working on similar projects. Please see below to get idea of our experience: Amazon/Ebay Bots: [url removed, login to view] More

$79 CAD in 1 day
(267 Reviews)
8.0
bob1982

hi i am very good in php/mysql,javascript i am willing to work with you hope to hear from you soon thanks bob

$35 CAD in 1 day
(287 Reviews)
6.6
LuigiWidmore

Hi , My name is Luigi Widmore and i have 6 years of experience with HTML/CSS PHP/MYSQL Design/Photoshop. I carefully read your project description, i'm very interested in it and i'm available to start right now. More

$100 CAD in 3 days
(84 Reviews)
6.3
cplaiasu

Hello, You can find the answer in page structure (view-source:[url removed, login to view] in your browser) and js. <form id="fMain" action=""> <input name="__RequestVerificationToken" type="hidden" value="Ju2 More

$35 CAD in 2 days
(20 Reviews)
3.9
jacobJordan

A proposal has not yet been provided

$30 CAD in 0 days
(10 Reviews)
3.5
Nyanbot

May I ask why you need to work out what its encrypted? Its generated server side. 100% sure it has nothing to-do with a user.

$15 CAD in 0 days
(1 Review)
2.9
nabin4a

I am a highly skilled web programmer(Qualified Computer Engineer) with 3+ years of experience. I have vast experience in PHP MVC frameworks(Yii,CI), jQuery, AJAX, MySQL, CSS/HTML and many more. Bidding lowest possi More

$40 CAD in 1 day
(4 Reviews)
2.4
romankapustyan

Hi. I found how it calculated. Please, contact me and we find a solutions for your problem. Thanks. Please write to me now to quick solutions

$30 CAD in 1 day
(0 Reviews)
0.0