Compute a hash or a message digest of data useful for authencity/error checking.
Hash functions, sometimes called checksum or message digest functions, convert a block of data (which may be very large) to a short fixed-size value. There is virtually zero probability of different data blocks having the same hash; besides, even a smallest modification of the source data will produce a different hash. This makes hash functions invaluable when you need to check the data for integrity and authencity.
Encoder converts binary data to a textual representation and vice versa.
Encoder converts binary data to a textual representation and vice versa. Encoders are not cryptographic components, they are simply helpers for representing binary data as text. In addition to traditional number encoders, IDcypher includes all the encoders described in RFC 4648.
Hash-based Message Authentication Code (HMAC).
MAC (Message Authentication Code) is a further improvement of hash functions for use with encrypted data. A hash function can reliably detect the data modification, but the opponent can easily forge the hash value to correspond to the deliberately changed data. MAC is based not only on the data, but also on the value of a secret key. As a result, a person who does not have the secret key, can't recompute the hash value, and any attempt to forge the data won't go undetected.
Contact Form with integrated ASP.NET Captcha Web Control.
A contact form is a must if you want to hear from visitors. Facebook pages and email newsletters are two key places to use contact forms. BotIdentify Contact Form is a .NET based web application with easily integration into any ASP.NET page. It is a fully responsive, mobile-ready web application, designed using Bootstrap and BootstrapValidator. BotIdentify ASP.NET CAPTCHA protects you against spam and other types of automated abuse. It has a builtin feature that sends a professionally drafted HTML Email. The user receives a confirmation email after the form submission.
ASP.NET Captcha Web Control. BotIdentify supports both ASP.NET Webforms and ASP.NET MVC.
ASP.NET Captcha Web Control. The term "CAPTCHA" is a contrived acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart." It is a type of challenge-response test used in computing to ensure that the response is not generated by a computer. The process usually involves one computer (a server) asking a user to complete a simple test which the computer is able to generate and grade. Because other computers are unable to solve the CAPTCHA, any user entering a correct solution is presumed to be human. Thus, it is sometimes described as a reverse Turing test, because it is administered by a machine and targeted to a human, in contrast to the standard Turing test that is typically administered by a human and targeted to a machine. A common type of CAPTCHA requires that the user type letters or digits from a distorted image that appears on the screen. BotIdentify supports both ASP.NET Webforms and ASP.NET MVC. It can be used with any .NET language including VB.NET and C#.