data integrity - security component, JAVA Programming


Data integrity helps to make sure if something is communicate and not tampered with in the mean while when transmission take place.

Checksums: Simply inserts the bytes within a request message or a file. If the checksums match the integrity is obtained. The weakness with the simplest form of checksum is that some times garbage can be added to create sums equal like


There are more enhanced checksums like CRC-32, Adler-32, which are designed to address the above weakness by considering not only the number of each byte but also its position.

Cryptography hashes: This uses a mathematical function to make a small result called message digest from the input message. Difficult to make false positives. Common hash methods are MD5, SHA etc.


Posted Date: 7/27/2012 6:03:47 AM | Location : United States

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