http://www.partow.net/programming/hashfunctions/
please refer this website. i think its the best so far
The output from a hash function is referred to as the hash value, hash code, hash sum, checksum or just plain "hash" as in "the hash of the file is...". Generally a hash function is presumed to be secure or it wouldn't be used. If a hash is not secure it could be referred to as "worthless" or "false sense of security".
hash key is an element in the hash table. it is the data that you will combine (mathematical) with hash function to produce the hash.
hash function is technique used in message authentication it is attached to the message for security purpose
Insertion in hash tables is based on a 'key' value which is calculated on the basis of a hash function. This hash function generates the key based on what type of data it is fed. For example hash function for an integer input might look like this : int hash(int val) { return (val%101); } where return value of hash function would become a key. Complete implementation can be found at: http://simplestcodings.blogspot.com/2010/07/hash-table.html
if collision is occurred in hash function then we can solve this problem by using double hash function
To decode a hash string you first need to know what hash function was used to encode it.
HashMap Java is used as a definition in Java software programming language. This version of Java is used to tag objects using hash numbers and therefore differentiate different items in different databases.
To replace an underlying hash function in HMAC, you need to modify the way the hash function is used within the HMAC algorithm, such as the block size and padding. You may also need to adjust the way the key is processed in the HMAC calculation based on the requirements of the new hash function. It is important to ensure that the security properties of the new hash function align with the security assumptions of HMAC.
In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.In Java, a function is called a "method". In Java as well as other languages, a method is a function defined specifically for one class. In Java, this is the only way to define functions, therefore, all functions are methods.
A compression function in a hash function takes an input block of data and reduces it to a fixed-size output, typically producing a hash value. This function processes the input in chunks, combining them with previously computed outputs to ensure that even small changes in the input result in significantly different hash values. Compression functions help maintain efficiency and security, allowing for the creation of unique identifiers for variable-length inputs while minimizing the risk of collisions. Overall, they are essential for ensuring the integrity and reliability of hash functions.
See the related link below for the Java API documentation for the Hashtable class and its methods.
No. It is a user defined function which the person who is creating the java class has to code by himself.