What is AccuHash 2.0?

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AccuHash 2.0 is Windows 95/98/Me/NT/2000/XP/2003 utility for protecting the integrity and verifying the accuracy of data files using checksum The value calculated from content of file. There is several algorithms for do this - CRC32, MD5, SHA-1... calculation algorithms (CRC32 One of checksum calculation algorithms family based on Cyclic Redundancy Codes. CRC32 is used in SFV checksum file format, produced by many checksum utilities. CRC32 is not secure and easily can be forged. , MD5 MD5 is secure cryptographic checksum (message digest, hash) algorithm. RFC 1321 contains MD5 algorithm description and reference implementation of MD5 too. Used by MD5SUM utility. and SHA-1 (Secure Hash Algorithm) designed by the National Security Agency (NSA) in 1993 as the algorithm of the Secure Hash Standard (SHS, FIPS 180).). It will allow to easily and quickly verify integrity of files downloaded from Internet, transferred over a network and/or burned onto CD/DVD.

Adding an little checksum file Relatively small text file which contains the checksum values of other files with their names and optionally with other attributes. Usually based on CRC32, MD5 or SHA-1 algorithms. CRC32 usually is used only for control the casual damages of files because of the insecure nature of CRC32 algorithm. MD5 or SHA-1 algorithms allows to protect files from intentional tampering.  (SFV (Simple File Verifier) - checksum file format, contains CRC32 checksum values of files. SFV is widely used in binary newsgroups, MP3 and ISO exchange networks and other communities. , MD5SUM Popular utility widely used for verifying integrity of files using MD5 hash function. MD5SUM exists almost on every Unix-system and output of MD5SUM is de-facto standard for MD5 checksum files. and BSD-style HashSet (checksum file) format, which allows to use any checksum (hash) calculation algorithm - CRC32, MD5 or SHA-1, for example. Also use plain text file, same as MD5SUM and SFV, but not limited by MD5 and CRC32 algorithms as MD5SUM and SFV respectively.  formats supported) to your data files will allows easily verify their integrity at any time later. This utility is especially effective if you have many files, many folders, or both. And it's extremely fast and very handy. Read more...

What for AccuHash 2.0?

What for AccuHash 2.0?

The CD (or DVD) recording utility brought out the "100%. Burning is successfully completed" message, the drive has blinked by own led and put forward the tray with slightly warm disk... Familiar picture, whether not so?

Yes, just another portion of files is copied from system hard drive onto backup discs and now the time to delete the original files... Stop! You are assured, what the disc contains exact copies of files? Certainly, the program told me that the recording has been successfully completed, at all!

Please, don't hurry up. Just read my story first...

Why AccuHash 2.0?

Why AccuHash 2.0?

AccuHash 2.0 use the checksum file format based on XML eXtensible Markup Language - the standardized general-purpose markup language. and Unicode Common characters encoding for all languages and systems. -enabled - this allows to easily exchange checksum files between different systems in the different countries, add new algorithms and expand the program features. But we don't forget also very popular SFV (Simple File Verifier) - checksum file format, contains CRC32 checksum values of files. SFV is widely used in binary newsgroups, MP3 and ISO exchange networks and other communities. , MD5SUM Popular utility widely used for verifying integrity of files using MD5 hash function. MD5SUM exists almost on every Unix-system and output of MD5SUM is de-facto standard for MD5 checksum files. and BSD-style HashSet (checksum file) format, which allows to use any checksum (hash) calculation algorithm - CRC32, MD5 or SHA-1, for example. Also use plain text file, same as MD5SUM and SFV, but not limited by MD5 and CRC32 algorithms as MD5SUM and SFV respectively.   checksum file Relatively small text file which contains the checksum values of other files with their names and optionally with other attributes. Usually based on CRC32, MD5 or SHA-1 algorithms. CRC32 usually is used only for control the casual damages of files because of the insecure nature of CRC32 algorithm. MD5 or SHA-1 algorithms allows to protect files from intentional tampering.  formats - the utility can import/export from/to those formats.

AccuHash 2.0 has the integrated Checksum Calculator an utility function, intended to calculate checksum value (CRC32, MD5 or SHA-1) of specified file or folder without creating checksum file. , which allows to calculate the checksum value (for all supported algorithms - CRC32 One of checksum calculation algorithms family based on Cyclic Redundancy Codes. CRC32 is used in SFV checksum file format, produced by many checksum utilities. CRC32 is not secure and easily can be forged. , MD5 MD5 is secure cryptographic checksum (message digest, hash) algorithm. RFC 1321 contains MD5 algorithm description and reference implementation of MD5 too. Used by MD5SUM utility. and SHA-1 (Secure Hash Algorithm) designed by the National Security Agency (NSA) in 1993 as the algorithm of the Secure Hash Standard (SHS, FIPS 180).) for specified file directly, without creating the checksum file. Checksum calculator is very convenient when necessary to quickly determine the checksum value of specified file, for example, in case the site owner publish checksum values directly on their web pages.

AccuHash 2.0 is powerfull, but easy-to-use. The modern and well-designed graphical user interface (GUI) and well thought-out actions logic strictly reduce the learning curve and allows immediately start to using all of features.

AccuHash 2.0 can work in two modes: feature-limited freeware mode and full-functional. The only limitation of freeware mode is number of handled files when creating and updating checksum files. All other features still available and this allow to freely use it for verifying files, for example, after downloading from Internet, when the site owners provide checksum values for own files. When necessity for creation and updating of checksum files with more than 10 items will appear, it's enough to register the program to convert it into full-featured version.

New in AccuHash 2.0.18:

  • New design for accuhash.com.
  • Modern colorful icons.
  • Links to homepage and support from main menu.
  • Number of processed/total/left bytes values formatting improved.
Latest version of AccuHash is 2.0.18 - ah2setup.exe (968Kb) from November 06, 2008.