# cvv algorithm

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### About the CVV and CVC on the credit card

Both VISA CVV and MC CVC are 3-or 4-bit numbers generated by the card number, expiration date, and service constraint code, and are generally written in the 2-track user-defined data area of the card stripe. CVV and CVC generation methods are the

### In-depth exploration of Perspective Projection Transformation

Reposted articles:Http://www.ategpu.com/2009/10/06/%E6%B7%B1%E5%85%A5%E6%8E%A2%E7%B4%A2%E9%80%8F%E8%A7%86%E6%8A%95%E5%BD%B1%E5%8F%98%E6%8D%A2.htmlGood article. I remember reading this article when I first came into contact with ogl. It seems that I

### In-depth exploration of projection transformation [posting]

Original post address: http://blog.csdn.net/popy007/article/details/1797121 Perspective Projection is an important part of a 3D fixed assembly line. It is used to transform the points in the camera space from the cone (frustum) to the canonical

### In-depth exploration of 3D pickup Technology

-Pan Hong -March January 2013 -My skills are limited, and mistakes are inevitable. Please give me some advice. -Email:Popyy@netease.com -Weibo.com/panhong101 3D pickup In the game, players need to select 3D objects by clicking the 2D screen. This

### Software raster work schedule

References:Book: [Computer Graphics]Book: [directx9.03d game development programming basics-13 cameras]Http://wenku.baidu.com/view/a08bf9ee4afe04a1b071decc.html (rotate around any axis)Http://wenku.baidu.com/view/700512d5360cba1aa811da70.html (view

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### The strategy mode of Java design pattern

1, what is the strategy mode?The strategy pattern, also called the algorithm cluster pattern, is the definition of different algorithm families, and can be replaced between each other, this mode allows the algorithm to change independently of the

### Magspoof: A cheap device that can predict and steal your next credit card number

Imagine losing your credit card and applying for a new one from the bank. But how do you feel if some cybercriminals are already using your new credit card before you receive this new one? Yes, it's completely achievable, at least with this \$10

### Direct3d frustum cropping Principle

Original copyright of this article belongs to Baidu LaizhishenAll, if any reprinted, please explicitly mark the original author and original source as follows to show respect !! Author:LaizhishenOriginal article: http://hi.baidu.com/laizhishen/blog/

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