HAS-V is a
cryptographic hash function
A cryptographic hash function (CHF) is a hash algorithm (a map (mathematics), map of an arbitrary binary string to a binary string with a fixed size of n bits) that has special properties desirable for a cryptography, cryptographic application: ...
with a variable output length. HAS-V is a hash function based on a
block cipher
In cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called ''blocks''. Block ciphers are the elementary building blocks of many cryptographic protocols. They are ubiquitous in the storage a ...
. The hash function can produce hash values with lengths from 16 to 40
bytes
The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is the smallest addressable un ...
.
Specifications
* Digest Size: 128-320
bit
The bit is the most basic unit of information in computing and digital communication. The name is a portmanteau of binary digit. The bit represents a logical state with one of two possible values. These values are most commonly represented as ...
s
* Max message length: <2
64 bits
* Compression Function: 1024-bit message block, 320-bit chaining variable
The hash function was developed by Nan Kyoung Park, Joon Ho Hwang and Pil Joong Lee,
[Designers ]
Standard Cryptographic Algorithm Naming.
/ref> and was released in 2000.
See also
* One-way compression function
In cryptography, a one-way compression function is a function that transforms two fixed-length inputs into a fixed-length output.Handbook of Applied Cryptography by Alfred J. Menezes, Paul C. van Oorschot, Scott A. Vanstone. Fifth Printing (August ...
- Describes how hash functions can be built from block ciphers.
References
External links
HAS-V: A New Hash Function with Variable Output Length
Cryptographic hash functions
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