MD5Sum v3.00

AzSDK MD5Sum COM component allows you to calculate a "message digest" code on any file or string of text. This digest consists of a 128-bit code which can act as a digital signature for documents, files and virtually any kind of digital data.

AzSDK MD5Sum is COM Component for developers, Developers can call it from Visual Basic, PHP, ASP, ASP.Net, C#, VB.Net, Delphi, Java etc.

The AzSDK MD5Sum creates an RFC1321 compliant MD5 string from a string of text or file content, The MD5 algorithm takes as input a string of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input string. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message digest. The MD5 algorithm is intended for digital signature applications, where a large file must be "compressed" in a secure manner before being encrypted with a private (secret) key under a public-key cryptosystem such as RSA. In essence, MD5 is a way to verify data integrity, and is much more reliable than checksum and many other commonly used methods.

Key Features

Generates a MD5 value from a text string or file content.
Supports .NET and Win32 application.
Supports many development languages, such asVisual Basic, PHP, ASP, ASP.Net, C#, VB.Net, Delphi, Java etc.
Supports Windows 95/98/ME/NT4 & Windows 2000/XP/2003/vista.

Screenshots

AzSDK MD5Sum

What is MD5 ?
MD5 is an algorithm that is used to verify data integrity through the creation of a 128-bit message digest from data input (which may be a message of any length) that is claimed to be as unique to that specific data as a fingerprint is to the specific individual. MD5, which was developed by Professor Ronald L. Rivest of MIT, is intended for use with digital signature applications, which require that large files must be compressed by a secure method before being encrypted with a secret key, under a public key cryptosystem. MD5 is currently a standard, Internet Engineering Task Force (IETF) Request for Comments (RFC) 1321. According to the standard, it is "computationally infeasible" that any two messages that have been input to the MD5 algorithm could have as the output the same message digest, or that a false message could be created through apprehension of the message digest. MD5 is the third message digest algorithm created by Rivest. All three (the others are MD2 and MD4) have similar structures, but MD2 was optimized for 8-bit machines, in comparison with the two later formulas, which are optimized for 32-bit machines. The MD5 algorithm is an extension of MD4, which the critical review found to be fast, but possibly not absolutely secure. In comparison, MD5 is not quite as fast as the MD4 algorithm, but offers much more assurance of data security.

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