…
Message Digest (hash) allows direct processing of arbitrary length messages using a variety of hashing algorithms to output an fixed length text.
Output is generally referred to as hash values, hash codes, hash amounts, checksums, digest file, digital fingerprint or simply hashes. Generally the length of the output hashes is less than the corresponding length of the input code. Unlike other cryptographic algorithms, the keys have no hash functions.
MD2 is a weak algorithm invented in 1989, still used today in some public key cryptography.
MD5 is an extremely popular hashing algorithm but now has very well known collision issues. - md5 hash generator
The SHA2 group, especially SHA-512, is probably the most easily available highly secure hashing algorithms available.
CRC32 is a common algorithm for computing checksums to protect against accidental corruption and changes.
Adler-32 is used as a part of the zlib compression function and is mainly used in a way similar to CRC32, but might be faster than CRCs at a cost of reliability.
Based on the GOST 28147-89 Block Cipher. GOST is a Russian National Standard hashing algorithm that produces 256-bit message digests.
Whirlpool is a standardized, public domain hashing algorithm that produces 512 bit digests.
RIPEMD-128 is a drop-in replacement for the RIPEMD-160 algorithm. It produces 128-bit digests, thus the "128" after the name.
A patent-free algorithm designed in 1995 originally to be optimized for 64-bit DEC Alpha, TIGER today produces fast hashing with security probably on the same order as the SHA2 group or better.
HAVAL is a flexible algorithm that can produce 128, 160, 192, 224, or 256-bit hashes. The number after the HAVAL (e.x. HAVAL128) represents the output size, and the number following the comma (as in HAVAL128,3) represents the "rounds" or "passes" it makes (each pass making it more secure, in theory & some aspects).
This version produces 128-bit digests. SNEFRU-256 also exists but is not currently supported on this site.
[{ins-quote}]
Cryptographic hashing has been an integral part of the cybersecurity spectrum. In fact, it is widely used in different technologies including Bitcoin and other cryptocurrency protocols. Supported hashing algorithms:
Fowler–Noll–Vo is a non-cryptographic hash function. The current versions are FNV-1 and FNV-1a, which supply a means of creating non-zero FNV offset basis. For pure FNV implementations, this is determined solely by the availability of FNV primes for the desired bit length.
One of FNV's key advantages is that it is very simple to implement. Start with an initial hash value of FNV offset basis. For each byte in the input, multiply hash by the FNV prime, then XOR it with the byte from the input. The alternate algorithm, FNV-1a, reverses the multiply and XOR steps.
HAVAL is a cryptographic hash function. Unlike MD5, but like most modern cryptographic hash functions, HAVAL can produce hashes of different lengths – 128 bits, 160 bits, 192 bits, 224 bits, and 256 bits. HAVAL also allows users to specify the number of rounds (3, 4, or 5) to be used to generate the hash. HAVAL was broken in 2004.
Research has uncovered weaknesses which make further use of HAVAL (at least the variant with 128 bits and 3 passes with 26 operations) questionable. On 17 August 2004, collisions for HAVAL (128 bits, 3 passes) were announced by Xiaoyun Wang, Dengguo Feng, Xuejia Lai, and Hongbo Yu.
I think it is inevitable that people program poorly. Training will not substantially help matters. We have to learn to live with it.
…