Advanced CheckSum Verifier - MD5 and SFV checksum utility for Windows home
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Advanced CheckSum Verifier - MD5 and SFV checksum utility for Windows
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What is Message Digest?

A message digest is a compact digital signature for an arbitrarily long stream of binary data. An ideal message digest algorithm would never generate the same signature for two different sets of input, but achieving such theoretical perfection would require a message digest as long as the input file. Practical message digest algorithms compromise in favour of a digital signature of modest and usually fixed size created with an algorithm designed to make preparation of input text with a given signature computationally infeasible.

Message digest algorithms have much in common with techniques used in encryption, but to a different end; verification that data have not been altered since the signature was published.

On the other hand, they also have some in common with 16 or 32 bit cyclical redundancy codes (CRC) originally developed to verify correct transmission in data communication protocols, but these short codes, while adequate to detect the kind of transmission errors for which they were intended, are insufficiently secure for modern volumes of the data and for applications such as electronic commerce and verification of security related software distributions.

The most commonly used present-day message digest algorithm is the 128 bit MD5 algorithm, developed by Ron Rivest of the MIT Laboratory for Computer Science and RSA Data Security, Inc. The algorithm, with a reference implementation, was published as Internet RFC 1321 in April 1992, and was placed into the public domain at that time.

What is Advanced CheckSum Verifier (ACSV)?

The Advanced CheckSum Verifier is an small, GUI-driven Windows checksum utility intended for creation and verification the checksum files both in SFV and MD5SUM formats. ACSV will help Windows users to protect the integrity of their files by using the CRC32 or MD5 checksum calculation algorithms.

ACSV will useful when necessary to verify the accuracy of files burned to CD-R(W) or transmitted over network, or for files comparison, or for detection of corrupted or tampered files. Adding an little checksum file to your data files will allow easily to verify their integrity at any time in further and allow you to reveal what files has been changed.

ACSV is especially effective if you have many files, many subdirectories, or both. And it's extremely fast and lightweight.

ACSV uses checksum files fully compatible with popular md5 utility for MD5 and SFV (Simple File Verification) for CRC32.

Read more about ACSV
See other screen shots of ACSV
Order ACSV Now!
Download! - 349Kb EXE-file with installer

     
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